regen config

This regenerates config files changed by the previous 44 commits.
Note that subject lines in these commits mostly match the gcc git
originating commit.

bfd/configure

@@ -6084,7 +6084,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -6160,6 +6160,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -7621,23 +7626,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -8896,7 +8903,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -9405,7 +9412,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -9417,7 +9424,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10417,7 +10424,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -10665,6 +10677,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -11106,7 +11137,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11109 "configure"
+#line 11140 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11212,7 +11243,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11215 "configure"
+#line 11246 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H

binutils/configure

@@ -5764,7 +5764,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -5840,6 +5840,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -7301,23 +7306,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -8607,7 +8614,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -9116,7 +9123,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -9128,7 +9135,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10128,7 +10135,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -10376,6 +10388,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -10817,7 +10848,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10820 "configure"
+#line 10851 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10923,7 +10954,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10926 "configure"
+#line 10957 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H

configure

@@ -613,6 +613,7 @@ DSYMUTIL_FOR_TARGET
 DLLTOOL_FOR_TARGET
 AS_FOR_TARGET
 AR_FOR_TARGET
+GM2_FOR_TARGET
 GDC_FOR_TARGET
 GOC_FOR_TARGET
 GFORTRAN_FOR_TARGET
@@ -688,7 +689,11 @@ get_gcc_base_ver
 extra_host_zlib_configure_flags
 extra_host_libiberty_configure_flags
 stage1_languages
+host_libs_picflag
+PICFLAG
 host_shared
+gcc_host_pie
+host_pie
 extra_linker_plugin_flags
 extra_linker_plugin_configure_flags
 islinc
@@ -722,7 +727,6 @@ CPPFLAGS
 LDFLAGS
 CFLAGS
 CC
-extra_liboffloadmic_configure_flags
 target_subdir
 host_subdir
 build_subdir
@@ -810,9 +814,9 @@ enable_year2038
 enable_libquadmath
 enable_libquadmath_support
 enable_libada
+enable_libgm2
 enable_libssp
 enable_libstdcxx
-enable_liboffloadmic
 enable_bootstrap
 enable_pgo_build
 with_mpc
@@ -836,6 +840,7 @@ enable_isl_version_check
 enable_lto
 enable_linker_plugin_configure_flags
 enable_linker_plugin_flags
+enable_host_pie
 enable_host_shared
 enable_stage1_languages
 enable_objc_gc
@@ -888,6 +893,7 @@ GCC_FOR_TARGET
 GFORTRAN_FOR_TARGET
 GOC_FOR_TARGET
 GDC_FOR_TARGET
+GM2_FOR_TARGET
 AR_FOR_TARGET
 AS_FOR_TARGET
 DLLTOOL_FOR_TARGET
@@ -1553,10 +1559,9 @@ Optional Features:
   --disable-libquadmath-support
                           disable libquadmath support for Fortran
   --enable-libada         build libada directory
+  --enable-libgm2         build libgm2 directory
   --enable-libssp         build libssp directory
   --disable-libstdcxx     do not build libstdc++-v3 directory
-  --enable-liboffloadmic=ARG
-                          build liboffloadmic [ARG={no,host,target}]
   --enable-bootstrap      enable bootstrapping [yes if native build]
   --enable-pgo-build[=lto]
                           enable the PGO build
@@ -1569,6 +1574,7 @@ Optional Features:
   --enable-linker-plugin-flags=FLAGS
                           additional flags for configuring and building linker
                           plugins [none]
+  --enable-host-pie       build position independent host executables
   --enable-host-shared    build host code as shared libraries
   --enable-stage1-languages[=all]
                           choose additional languages to build during stage1.
@@ -1691,6 +1697,8 @@ Some influential environment variables:
               GOC for the target
   GDC_FOR_TARGET
               GDC for the target
+  GM2_FOR_TARGET
+              GM2 for the target
   AR_FOR_TARGET
               AR for the target
   AS_FOR_TARGET
@@ -2829,7 +2837,7 @@ host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktr
 # binutils, gas and ld appear in that order because it makes sense to run
 # "make check" in that particular order.
 # If --enable-gold is used, "gold" may replace "ld".
-host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools c++tools"
+host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gm2tools gotools c++tools"
 
 # these libraries are built for the target environment, and are built after
 # the host libraries and the host tools (which may be a cross compiler)
@@ -2839,7 +2847,6 @@ target_libraries="target-libgcc \
 		target-libgloss \
 		target-newlib \
 		target-libgomp \
-		target-liboffloadmic \
 		target-libatomic \
 		target-libitm \
 		target-libstdc++-v3 \
@@ -2851,6 +2858,7 @@ target_libraries="target-libgcc \
 		target-libffi \
 		target-libobjc \
 		target-libada \
+		target-libgm2 \
 		target-libgo \
 		target-libphobos \
 		target-zlib"
@@ -3069,7 +3077,7 @@ case "${ENABLE_GOLD}" in
       *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
       | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
       | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
-      | *-*-solaris2* | *-*-nto* | *-*-nacl*)
+      | *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-haiku*)
         case "${target}" in
           *-*-linux*aout* | *-*-linux*oldld*)
             ;;
@@ -3240,6 +3248,17 @@ if test "${ENABLE_LIBADA}" != "yes" ; then
   noconfigdirs="$noconfigdirs gnattools"
 fi
 
+# Check whether --enable-libgm2 was given.
+if test "${enable_libgm2+set}" = set; then :
+  enableval=$enable_libgm2; ENABLE_LIBGM2=$enableval
+else
+  ENABLE_LIBGM2=no
+fi
+
+if test "${ENABLE_LIBGM2}" != "yes" ; then
+  noconfigdirs="$noconfigdirs gm2tools"
+fi
+
 # Check whether --enable-libssp was given.
 if test "${enable_libssp+set}" = set; then :
   enableval=$enable_libssp; ENABLE_LIBSSP=$enableval
@@ -3259,44 +3278,6 @@ if test "${ENABLE_LIBSTDCXX}" = "no" ; then
   noconfigdirs="$noconfigdirs target-libstdc++-v3"
 fi
 
-# If this is accelerator compiler and its target is intelmic we enable
-# target liboffloadmic by default.  If this is compiler with offloading
-# for intelmic we enable host liboffloadmic by default.  Otherwise
-# liboffloadmic is disabled by default.
-# Check whether --enable-liboffloadmic was given.
-if test "${enable_liboffloadmic+set}" = set; then :
-  enableval=$enable_liboffloadmic; case "$enableval" in
-  no | host | target)
-    enable_liboffloadmic=$enableval ;;
-  *)
-    as_fn_error $? "--enable-liboffloadmic=no/host/target" "$LINENO" 5 ;;
-esac
-else
-  if test x"$enable_as_accelerator_for" != x; then
-  case "${target}" in
-    *-intelmic-* | *-intelmicemul-*)
-      enable_liboffloadmic=target
-      extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
-      ;;
-    *)
-      enable_liboffloadmic=no
-      ;;
-  esac
-else
-  case "${enable_offload_targets}" in
-    *-intelmic-* | *-intelmicemul-*)
-      enable_liboffloadmic=host
-      extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
-      ;;
-    *)
-      enable_liboffloadmic=no
-      ;;
-    esac
-fi
-fi
-
-
-
 # Enable libgomp by default on hosted POSIX systems, and a few others.
 if test x$enable_libgomp = x ; then
     case "${target}" in
@@ -3335,25 +3316,6 @@ $as_echo "yes" >&6; }
     fi
 fi
 
-# Disable liboffloadmic on unsupported systems.
-if test -d ${srcdir}/liboffloadmic; then
-    if test x$enable_liboffloadmic != xno; then
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for liboffloadmic support" >&5
-$as_echo_n "checking for liboffloadmic support... " >&6; }
-	if (srcdir=${srcdir}/liboffloadmic; \
-		. ${srcdir}/configure.tgt; \
-		test -n "$UNSUPPORTED")
-	then
-	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-	    noconfigdirs="$noconfigdirs target-liboffloadmic"
-	else
-	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-	fi
-    fi
-fi
-
 # Disable libitm on unsupported systems.
 if test -d ${srcdir}/libitm; then
     if test x$enable_libitm = x; then
@@ -8761,6 +8723,39 @@ fi
 
 
 
+# Handle --enable-host-pie
+# If host PIE executables are the default (or must be forced on) for some host,
+# we must pass that configuration to the gcc directory.
+gcc_host_pie=
+# Check whether --enable-host-pie was given.
+if test "${enable_host_pie+set}" = set; then :
+  enableval=$enable_host_pie; host_pie=$enableval
+ case $host in
+   *-*-darwin2*)
+     if test x$host_pie != xyes ; then
+       # for Darwin20+ this is required.
+       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: PIE executables are required for the configured host, host-pie setting ignored." >&5
+$as_echo "$as_me: WARNING: PIE executables are required for the configured host, host-pie setting ignored." >&2;}
+       host_pie=yes
+       gcc_host_pie=--enable-host-pie
+     fi ;;
+  *) ;;
+ esac
+else
+  case $host in
+  *-*-darwin2*)
+    # Default to PIE (mandatory for aarch64).
+    host_pie=yes
+    gcc_host_pie=--enable-host-pie
+    ;;
+  *) host_pie=no ;;
+ esac
+fi
+
+
+
+
+
 # Enable --enable-host-shared.
 # Checked early to determine whether jit is an 'all' language
 # Check whether --enable-host-shared was given.
@@ -8770,20 +8765,61 @@ if test "${enable_host_shared+set}" = set; then :
    x86_64-*-darwin* | aarch64-*-darwin*)
      if test x$host_shared != xyes ; then
        # PIC is the default, and actually cannot be switched off.
-       echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
+       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: PIC code is required for the configured host; host-shared setting ignored." >&5
+$as_echo "$as_me: WARNING: PIC code is required for the configured host; host-shared setting ignored." >&2;}
+       host_shared=yes
+     fi ;;
+   *-*-darwin*)
+     if test x$host_pie = xyes -a x$host_shared != xyes ; then
+       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: PIC code is required for PIE host executables host-shared setting ignored." >&5
+$as_echo "$as_me: WARNING: PIC code is required for PIE host executables host-shared setting ignored." >&2;}
        host_shared=yes
      fi ;;
   *) ;;
  esac
 else
   case $host in
+  # 64B x86_64 and Aarch64 Darwin default to PIC.
   x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
-  *) host_shared=no ;;
+  # 32B and powerpc64 Darwin must use PIC to link PIE exes.
+  *-*-darwin*) host_shared=$host_pie ;;
+  *) host_shared=no;;
  esac
 fi
 
 
 
+
+if test x$host_shared = xyes; then
+  case $host in
+    *-*-darwin*)
+      # Since host shared is the default for 64b Darwin, and also enabled for
+      # host_pie, ensure that we present the PIE flag when host_pie is active.
+      if test x$host_pie = xyes; then
+        PICFLAG=-fPIE
+      fi
+      ;;
+    *)
+      PICFLAG=-fPIC
+      ;;
+  esac
+elif test x$host_pie = xyes; then
+  PICFLAG=-fPIE
+else
+  PICFLAG=
+fi
+
+
+
+# If we are building PIC/PIE host executables, and we are building dependent
+# libs (e.g. GMP) in-tree those libs need to be configured to generate PIC
+# code.
+host_libs_picflag=
+if test "$host_shared" = "yes" -o "$host_pie" = "yes"; then
+host_libs_picflag='--with-pic'
+fi
+
+
 # By default, C and C++ are the only stage 1 languages.
 stage1_languages=,c,
 
@@ -9209,7 +9245,7 @@ $as_echo "using paths configured with --with-target-bdw-gc options" >&6; }
   fi
 esac
 
-# Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
+# Disable libitm, libsanitizer, libvtv if we're not building C++
 case ,${enable_languages}, in
   *,c++,*)
     # Disable libitm, libsanitizer if we're not building libstdc++
@@ -9221,7 +9257,7 @@ case ,${enable_languages}, in
     esac
     ;;
   *)
-    noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
+    noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv"
     ;;
 esac
 
@@ -10024,7 +10060,9 @@ esac
 # These force 'configure's to be done one at a time, to avoid problems
 # with contention over a shared config.cache.
 rm -f serdep.tmp
+if test "x${enable_serial_build_configure}" = xyes || test "x${enable_serial_host_configure}" = xyes || test "x${enable_serial_target_configure}" = xyes; then
 echo '# serdep.tmp' > serdep.tmp
+fi
 olditem=
 test "x${enable_serial_build_configure}" = xyes &&
 for item in ${build_configdirs} ; do
@@ -12988,6 +13026,7 @@ fi
 
 
 
+GDCFLAGS=${GDCFLAGS-${CFLAGS}}
 
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -plugin option" >&5
@@ -14110,6 +14149,167 @@ fi
 
 
 
+if test -n "$GM2_FOR_TARGET"; then
+  ac_cv_prog_GM2_FOR_TARGET=$GM2_FOR_TARGET
+elif test -n "$ac_cv_prog_GM2_FOR_TARGET"; then
+  GM2_FOR_TARGET=$ac_cv_prog_GM2_FOR_TARGET
+fi
+
+if test -n "$ac_cv_prog_GM2_FOR_TARGET"; then
+  for ncn_progname in gm2; do
+    # Extract the first word of "${ncn_progname}", so it can be a program name with args.
+set dummy ${ncn_progname}; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_GM2_FOR_TARGET+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$GM2_FOR_TARGET"; then
+  ac_cv_prog_GM2_FOR_TARGET="$GM2_FOR_TARGET" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_GM2_FOR_TARGET="${ncn_progname}"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+GM2_FOR_TARGET=$ac_cv_prog_GM2_FOR_TARGET
+if test -n "$GM2_FOR_TARGET"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GM2_FOR_TARGET" >&5
+$as_echo "$GM2_FOR_TARGET" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  done
+fi
+
+if test -z "$ac_cv_prog_GM2_FOR_TARGET" && test -n "$with_build_time_tools"; then
+  for ncn_progname in gm2; do
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ncn_progname} in $with_build_time_tools" >&5
+$as_echo_n "checking for ${ncn_progname} in $with_build_time_tools... " >&6; }
+    if test -x $with_build_time_tools/${ncn_progname}; then
+      ac_cv_prog_GM2_FOR_TARGET=$with_build_time_tools/${ncn_progname}
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+      break
+    else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    fi
+  done
+fi
+
+if test -z "$ac_cv_prog_GM2_FOR_TARGET"; then
+  for ncn_progname in gm2; do
+    if test -n "$ncn_target_tool_prefix"; then
+      # Extract the first word of "${ncn_target_tool_prefix}${ncn_progname}", so it can be a program name with args.
+set dummy ${ncn_target_tool_prefix}${ncn_progname}; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_GM2_FOR_TARGET+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$GM2_FOR_TARGET"; then
+  ac_cv_prog_GM2_FOR_TARGET="$GM2_FOR_TARGET" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_GM2_FOR_TARGET="${ncn_target_tool_prefix}${ncn_progname}"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+GM2_FOR_TARGET=$ac_cv_prog_GM2_FOR_TARGET
+if test -n "$GM2_FOR_TARGET"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GM2_FOR_TARGET" >&5
+$as_echo "$GM2_FOR_TARGET" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    fi
+    if test -z "$ac_cv_prog_GM2_FOR_TARGET" && test $build = $target ; then
+      # Extract the first word of "${ncn_progname}", so it can be a program name with args.
+set dummy ${ncn_progname}; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_GM2_FOR_TARGET+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$GM2_FOR_TARGET"; then
+  ac_cv_prog_GM2_FOR_TARGET="$GM2_FOR_TARGET" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_GM2_FOR_TARGET="${ncn_progname}"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+GM2_FOR_TARGET=$ac_cv_prog_GM2_FOR_TARGET
+if test -n "$GM2_FOR_TARGET"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GM2_FOR_TARGET" >&5
+$as_echo "$GM2_FOR_TARGET" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    fi
+    test -n "$ac_cv_prog_GM2_FOR_TARGET" && break
+  done
+fi
+
+if test -z "$ac_cv_prog_GM2_FOR_TARGET" ; then
+  set dummy gm2
+  if test $build = $target ; then
+    GM2_FOR_TARGET="$2"
+  else
+    GM2_FOR_TARGET="${ncn_target_tool_prefix}$2"
+  fi
+else
+  GM2_FOR_TARGET="$ac_cv_prog_GM2_FOR_TARGET"
+fi
+
+
+
 cat > conftest.c << \EOF
 #ifdef __GNUC__
   gcc_yay;
@@ -18042,6 +18242,51 @@ $as_echo "pre-installed" >&6; }
   fi
 fi
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking where to find the target gm2" >&5
+$as_echo_n "checking where to find the target gm2... " >&6; }
+if test "x${build}" != "x${host}" ; then
+  if expr "x$GM2_FOR_TARGET" : "x/" > /dev/null; then
+    # We already found the complete path
+    ac_dir=`dirname $GM2_FOR_TARGET`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: pre-installed in $ac_dir" >&5
+$as_echo "pre-installed in $ac_dir" >&6; }
+  else
+    # Canadian cross, just use what we found
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: pre-installed" >&5
+$as_echo "pre-installed" >&6; }
+  fi
+else
+  ok=yes
+  case " ${configdirs} " in
+    *" gcc "*) ;;
+    *) ok=no ;;
+  esac
+  case ,${enable_languages}, in
+    *,m2,*) ;;
+    *) ok=no ;;
+  esac
+  if test $ok = yes; then
+    # An in-tree tool is available and we can use it
+    GM2_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gm2 -B$$r/$(HOST_SUBDIR)/gcc/'
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: just compiled" >&5
+$as_echo "just compiled" >&6; }
+  elif expr "x$GM2_FOR_TARGET" : "x/" > /dev/null; then
+    # We already found the complete path
+    ac_dir=`dirname $GM2_FOR_TARGET`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: pre-installed in $ac_dir" >&5
+$as_echo "pre-installed in $ac_dir" >&6; }
+  elif test "x$target" = "x$host"; then
+    # We can use an host tool
+    GM2_FOR_TARGET='$(GM2)'
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: host tool" >&5
+$as_echo "host tool" >&6; }
+  else
+    # We need a cross tool
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: pre-installed" >&5
+$as_echo "pre-installed" >&6; }
+  fi
+fi
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking where to find the target ld" >&5
 $as_echo_n "checking where to find the target ld... " >&6; }
 if test "x${build}" != "x${host}" ; then
@@ -18603,6 +18848,9 @@ fi
 # Specify what files to not compare during bootstrap.
 
 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
+compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/M2Version*"
+compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/SYSTEM*"
+compare_exclusions="$compare_exclusions | gcc/m2/gm2version*"
 case "$target" in
   hppa*64*-*-hpux*) ;;
   powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;

gas/configure

@@ -5673,7 +5673,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -5749,6 +5749,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -7210,23 +7215,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -8516,7 +8523,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -9025,7 +9032,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -9037,7 +9044,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10037,7 +10044,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -10285,6 +10297,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -10726,7 +10757,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10729 "configure"
+#line 10760 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10832,7 +10863,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10835 "configure"
+#line 10866 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H

gdb/configure

@@ -6352,7 +6352,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -6428,6 +6428,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -7931,23 +7936,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -9238,7 +9245,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -9747,7 +9754,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -9759,7 +9766,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10759,7 +10766,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -11007,6 +11019,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -11448,7 +11479,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11451 "configure"
+#line 11482 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11554,7 +11585,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11557 "configure"
+#line 11588 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12576,7 +12607,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
           aCC*)
 	    case $host_cpu in
 	      hppa*64*)
-	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 	        ;;
 	      ia64*)
 	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
@@ -12600,7 +12631,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
 	      if test $with_gnu_ld = no; then
 	        case $host_cpu in
 	          hppa*64*)
-	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 	            ;;
 	          ia64*)
 	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
@@ -12719,20 +12750,20 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
 	      prelink_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
-		compile_command="$compile_command `find $tpldir -name \*.o | $NL2SP`"'
+		compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
 	      old_archive_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
-		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | $NL2SP`~
+		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
 		$RANLIB $oldlib'
 	      archive_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
-		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
 	      archive_expsym_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
-		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
 	      ;;
 	    *) # Version 6 and above use weak symbols
 	      archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
@@ -13113,8 +13144,9 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
         ;;
 
       vxworks*)
-        # FIXME: insert proper C++ library support
+        # For VxWorks ports, we assume the use of a GNU linker with
-        ld_shlibs_CXX=no
+        # standard elf conventions.
+        ld_shlibs_CXX=yes
         ;;
 
       *)
@@ -14409,7 +14441,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -14657,6 +14694,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;

gdbsupport/Makefile.in

@@ -15,7 +15,7 @@
 @SET_MAKE@
 
 #
-#   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+#   Copyright (C) 2020-2023 Free Software Foundation, Inc.
 #
 # This file is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

gprof/configure

@@ -5551,7 +5551,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -5627,6 +5627,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -7088,23 +7093,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -8394,7 +8401,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -8903,7 +8910,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -8915,7 +8922,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -9915,7 +9922,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -10163,6 +10175,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -10604,7 +10635,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10607 "configure"
+#line 10638 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10710,7 +10741,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10713 "configure"
+#line 10744 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H

gprofng/configure

@@ -7197,7 +7197,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -7273,6 +7273,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -8734,23 +8739,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -10011,7 +10018,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -10520,7 +10527,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10532,7 +10539,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -11532,7 +11539,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -11780,6 +11792,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -12221,7 +12252,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12224 "configure"
+#line 12255 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12327,7 +12358,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12330 "configure"
+#line 12361 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13349,7 +13380,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
           aCC*)
 	    case $host_cpu in
 	      hppa*64*)
-	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 	        ;;
 	      ia64*)
 	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
@@ -13373,7 +13404,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
 	      if test $with_gnu_ld = no; then
 	        case $host_cpu in
 	          hppa*64*)
-	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 	            ;;
 	          ia64*)
 	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
@@ -13492,20 +13523,20 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
 	      prelink_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
-		compile_command="$compile_command `find $tpldir -name \*.o | $NL2SP`"'
+		compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
 	      old_archive_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
-		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | $NL2SP`~
+		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
 		$RANLIB $oldlib'
 	      archive_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
-		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
 	      archive_expsym_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
-		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
 	      ;;
 	    *) # Version 6 and above use weak symbols
 	      archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
@@ -13886,8 +13917,9 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
         ;;
 
       vxworks*)
-        # FIXME: insert proper C++ library support
+        # For VxWorks ports, we assume the use of a GNU linker with
-        ld_shlibs_CXX=no
+        # standard elf conventions.
+        ld_shlibs_CXX=yes
         ;;
 
       *)
@@ -15182,7 +15214,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -15430,6 +15467,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;

gprofng/libcollector/configure

@@ -7009,7 +7009,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -7085,6 +7085,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -8546,23 +8551,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -9853,7 +9860,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -10362,7 +10369,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10374,7 +10381,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -11374,7 +11381,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -11622,6 +11634,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -12063,7 +12094,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12066 "configure"
+#line 12097 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12169,7 +12200,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12172 "configure"
+#line 12203 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13191,7 +13222,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
           aCC*)
 	    case $host_cpu in
 	      hppa*64*)
-	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 	        ;;
 	      ia64*)
 	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
@@ -13215,7 +13246,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
 	      if test $with_gnu_ld = no; then
 	        case $host_cpu in
 	          hppa*64*)
-	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 	            ;;
 	          ia64*)
 	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
@@ -13334,20 +13365,20 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
 	      prelink_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
-		compile_command="$compile_command `find $tpldir -name \*.o | $NL2SP`"'
+		compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
 	      old_archive_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
-		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | $NL2SP`~
+		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
 		$RANLIB $oldlib'
 	      archive_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
-		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
 	      archive_expsym_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
-		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
 	      ;;
 	    *) # Version 6 and above use weak symbols
 	      archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
@@ -13728,8 +13759,9 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
         ;;
 
       vxworks*)
-        # FIXME: insert proper C++ library support
+        # For VxWorks ports, we assume the use of a GNU linker with
-        ld_shlibs_CXX=no
+        # standard elf conventions.
+        ld_shlibs_CXX=yes
         ;;
 
       *)
@@ -15024,7 +15056,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -15272,6 +15309,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;

intl/configure

@@ -622,6 +622,8 @@ ac_unique_file="gettext.c"
 ac_header_list=
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
+enable_host_pie
+enable_host_shared
 BISON3_NO
 BISON3_YES
 PICFLAG
@@ -727,6 +729,8 @@ with_included_gettext
 with_libintl_prefix
 with_libintl_type
 enable_maintainer_mode
+enable_host_shared
+enable_host_pie
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1351,6 +1355,8 @@ Optional Features:
   --disable-nls           do not use Native Language Support
   --disable-rpath         do not hardcode runtime library paths
   --enable-maintainer-mode enable rules only needed by maintainers
+  --enable-host-shared    build host code as shared libraries
+  --enable-host-pie       build host code as PIE
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -6857,6 +6863,9 @@ case "${host}" in
 	# sets the default TLS model and affects inlining.
 	PICFLAG=-fPIC
 	;;
+    loongarch*-*-*)
+	PICFLAG=-fpic
+	;;
     mips-sgi-irix6*)
 	# PIC is the default.
 	;;
@@ -6916,6 +6925,31 @@ fi
 
 
 
+# Enable --enable-host-shared.
+# Check whether --enable-host-shared was given.
+if test "${enable_host_shared+set}" = set; then :
+  enableval=$enable_host_shared;
+fi
+
+
+
+# Enable --enable-host-pie.
+# Check whether --enable-host-pie was given.
+if test "${enable_host_pie+set}" = set; then :
+  enableval=$enable_host_pie;
+fi
+
+
+
+if test x$enable_host_shared = xyes; then
+  PICFLAG=-fPIC
+elif test x$enable_host_pie = xyes; then
+  PICFLAG=-fPIE
+else
+  PICFLAG=
+fi
+
+
 ac_config_files="$ac_config_files Makefile config.intl"
 
 cat >confcache <<\_ACEOF

ld/configure

@@ -6571,7 +6571,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -6647,6 +6647,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -8108,23 +8113,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -9415,7 +9422,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -9924,7 +9931,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -9936,7 +9943,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10936,7 +10943,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -11184,6 +11196,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -11625,7 +11656,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11628 "configure"
+#line 11659 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11731,7 +11762,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11734 "configure"
+#line 11765 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12753,7 +12784,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
           aCC*)
 	    case $host_cpu in
 	      hppa*64*)
-	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 	        ;;
 	      ia64*)
 	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
@@ -12777,7 +12808,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
 	      if test $with_gnu_ld = no; then
 	        case $host_cpu in
 	          hppa*64*)
-	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 	            ;;
 	          ia64*)
 	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
@@ -12896,20 +12927,20 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
 	      prelink_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
-		compile_command="$compile_command `find $tpldir -name \*.o | $NL2SP`"'
+		compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
 	      old_archive_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
-		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | $NL2SP`~
+		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
 		$RANLIB $oldlib'
 	      archive_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
-		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
 	      archive_expsym_cmds_CXX='tpldir=Template.dir~
 		rm -rf $tpldir~
 		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
-		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
 	      ;;
 	    *) # Version 6 and above use weak symbols
 	      archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
@@ -13290,8 +13321,9 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
         ;;
 
       vxworks*)
-        # FIXME: insert proper C++ library support
+        # For VxWorks ports, we assume the use of a GNU linker with
-        ld_shlibs_CXX=no
+        # standard elf conventions.
+        ld_shlibs_CXX=yes
         ;;
 
       *)
@@ -14586,7 +14618,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -14834,6 +14871,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;

libbacktrace/configure

@@ -6487,7 +6487,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -6563,6 +6563,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -8024,23 +8029,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -9330,7 +9337,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -9839,7 +9846,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -9851,7 +9858,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10851,7 +10858,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -11099,6 +11111,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -11540,7 +11571,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11543 "configure"
+#line 11574 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11646,7 +11677,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11649 "configure"
+#line 11680 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H

libctf/configure

@@ -6608,7 +6608,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -6684,6 +6684,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -8145,23 +8150,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -9421,7 +9428,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -9930,7 +9937,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -9942,7 +9949,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10942,7 +10949,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -11190,6 +11202,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -11631,7 +11662,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11634 "configure"
+#line 11665 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11737,7 +11768,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11740 "configure"
+#line 11771 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H

libdecnumber/configure

@@ -625,6 +625,8 @@ ac_includes_default="\
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
 PICFLAG
+enable_host_pie
+enable_host_shared
 ADDITIONAL_OBJS
 enable_decimal_float
 target_os
@@ -704,6 +706,7 @@ enable_werror_always
 enable_maintainer_mode
 enable_decimal_float
 enable_host_shared
+enable_host_pie
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1335,6 +1338,7 @@ Optional Features:
 			or 'dpd' choses which decimal floating point format
 			to use
   --enable-host-shared    build host code as shared libraries
+  --enable-host-pie       build host code as PIE
 
 Some influential environment variables:
   CC          C compiler command
@@ -5044,7 +5048,23 @@ $as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h
 # Enable --enable-host-shared.
 # Check whether --enable-host-shared was given.
 if test "${enable_host_shared+set}" = set; then :
-  enableval=$enable_host_shared; PICFLAG=-fPIC
+  enableval=$enable_host_shared;
+fi
+
+
+
+# Enable --enable-host-pie.
+# Check whether --enable-host-pie was given.
+if test "${enable_host_pie+set}" = set; then :
+  enableval=$enable_host_pie;
+fi
+
+
+
+if test x$enable_host_shared = xyes; then
+  PICFLAG=-fPIC
+elif test x$enable_host_pie = xyes; then
+  PICFLAG=-fPIE
 else
   PICFLAG=
 fi

libsframe/configure

@@ -6463,7 +6463,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -6539,6 +6539,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -8000,23 +8005,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -9276,7 +9283,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -9785,7 +9792,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -9797,7 +9804,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10797,7 +10804,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -11045,6 +11057,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -11486,7 +11517,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11489 "configure"
+#line 11520 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11592,7 +11623,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11595 "configure"
+#line 11626 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H

opcodes/configure

@@ -6018,7 +6018,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -6094,6 +6094,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -7555,23 +7560,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -8831,7 +8838,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -9340,7 +9347,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -9352,7 +9359,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10352,7 +10359,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -10600,6 +10612,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -11041,7 +11072,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11044 "configure"
+#line 11075 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11147,7 +11178,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11150 "configure"
+#line 11181 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H

sim/configure

@@ -6516,7 +6516,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -6592,6 +6592,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -8095,23 +8100,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -10047,7 +10054,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -10556,7 +10563,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10568,7 +10575,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -11568,7 +11575,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -11816,6 +11828,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -12257,7 +12288,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12260 "configure"
+#line 12291 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12363,7 +12394,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12366 "configure"
+#line 12397 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H

zlib/Makefile.in

@@ -349,6 +349,8 @@ datadir = @datadir@
 datarootdir = @datarootdir@
 docdir = @docdir@
 dvidir = @dvidir@
+enable_host_pie = @enable_host_pie@
+enable_host_shared = @enable_host_shared@
 exec_prefix = @exec_prefix@
 host = @host@
 host_alias = @host_alias@

zlib/configure

@@ -635,6 +635,8 @@ am__EXEEXT_TRUE
 LTLIBOBJS
 LIBOBJS
 PICFLAG
+enable_host_pie
+enable_host_shared
 TARGET_LIBRARY_FALSE
 TARGET_LIBRARY_TRUE
 toolexeclibdir
@@ -776,6 +778,7 @@ enable_fast_install
 with_gnu_ld
 enable_libtool_lock
 enable_host_shared
+enable_host_pie
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1417,6 +1420,7 @@ Optional Features:
                           optimize for fast installation [default=yes]
   --disable-libtool-lock  avoid locking (might break parallel builds)
   --enable-host-shared    build host code as shared libraries
+  --enable-host-pie       build host code as PIE
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -5357,7 +5361,7 @@ irix5* | irix6* | nonstopux*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -5433,6 +5437,11 @@ sysv4 | sysv4.3*)
 tpf*)
   lt_cv_deplibs_check_method=pass_all
   ;;
+vxworks*)
+  # Assume VxWorks cross toolchains are built on Linux, possibly
+  # as canadian for Windows hosts.
+  lt_cv_deplibs_check_method=pass_all
+  ;;
 esac
 
 fi
@@ -6901,23 +6910,25 @@ _LT_EOF
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
 $as_echo "$lt_cv_ld_force_load" >&6; }
-    case $host_os in
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
-    rhapsody* | darwin1.[012])
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
       _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
-    darwin1.*)
+    *-darwin1.*)
       _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
-    darwin*) # darwin 5.x on
+    *-darwin*)
-      # if running on 10.5 or later, the deployment target defaults
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
-      # to the OS version, if on x86, and 10.4, the deployment
+      # deployment target is forced to an earlier version.
-      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
 	10.[012][,.]*)
-	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
-	10.*)
+	  ;;
-	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	*)
-      esac
+	  ;;
+     esac
     ;;
   esac
     if test "$lt_cv_apple_cc_single_mod" = "yes"; then
@@ -8474,7 +8485,7 @@ _LT_EOF
       archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
       ;;
 
-    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
       tmp_diet=no
       if test "$host_os" = linux-dietlibc; then
 	case $cc_basename in
@@ -8989,7 +9000,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       if test "$GCC" = yes && test "$with_gnu_ld" = no; then
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -9001,7 +9012,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       else
 	case $host_cpu in
 	hppa*64*)
-	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
 	  ;;
 	ia64*)
 	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
@@ -10004,7 +10015,12 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -10255,6 +10271,25 @@ uts4*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+# Shared libraries for VwWorks, >= 7 only at this stage
+# and (fpic) still incompatible with "large" code models
+# in a few configurations. Only for RTP mode in any case,
+# and upon explicit request at configure time.
+vxworks7*)
+  dynamic_linker=no
+  case ${with_multisubdir}-${enable_shared} in
+    *large*)
+      ;;
+    *mrtp*-yes)
+      version_type=linux
+      need_lib_prefix=no
+      need_version=no
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      dynamic_linker="$host_os module_loader"
+      ;;
+  esac
+  ;;
 *)
   dynamic_linker=no
   ;;
@@ -10711,7 +10746,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10714 "configure"
+#line 10749 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10817,7 +10852,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10820 "configure"
+#line 10855 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11532,15 +11567,31 @@ else
   multilib_arg=
 fi
 
+# Enable --enable-host-shared.
 # Check whether --enable-host-shared was given.
 if test "${enable_host_shared+set}" = set; then :
-  enableval=$enable_host_shared; PICFLAG=-fPIC
+  enableval=$enable_host_shared;
+fi
+
+
+
+# Enable --enable-host-pie.
+# Check whether --enable-host-pie was given.
+if test "${enable_host_pie+set}" = set; then :
+  enableval=$enable_host_pie;
+fi
+
+
+
+if test x$enable_host_shared = xyes; then
+  PICFLAG=-fPIC
+elif test x$enable_host_pie = xyes; then
+  PICFLAG=-fPIE
 else
   PICFLAG=
 fi
 
 
-
 ac_config_files="$ac_config_files Makefile"
 
 cat >confcache <<\_ACEOF