sim: use build-gnulib with build-time tools [PR sim/30882]

Some of our build-time tools are fairly complicated and require some
POSIX APIs that the build system doesn't provide.  Leverage the new
build-gnulib tree to provide fallback implementations automatically.

Makefile.def

@@ -27,6 +27,7 @@ AutoGen definitions Makefile.tpl;
 build_modules= { module= libiberty; };
 build_modules= { module= bison; };
 build_modules= { module= flex; };
+build_modules= { module= gnulib; };
 build_modules= { module= m4; };
 build_modules= { module= texinfo; };
 build_modules= { module= fixincludes; };
@@ -600,6 +601,7 @@ dependencies = { module=install-strip-sid; on=install-strip-tcl; };
 dependencies = { module=install-sid; on=install-tk; };
 dependencies = { module=install-strip-sid; on=install-strip-tk; };
 
+dependencies = { module=configure-sim; on=all-build-gnulib; };
 dependencies = { module=configure-sim; on=all-gnulib; };
 dependencies = { module=configure-sim; on=configure-gettext; };
 dependencies = { module=all-sim; on=all-gettext; };

Makefile.in

@@ -1199,6 +1199,7 @@ all:
 all-build: maybe-all-build-libiberty
 all-build: maybe-all-build-bison
 all-build: maybe-all-build-flex
+all-build: maybe-all-build-gnulib
 all-build: maybe-all-build-m4
 all-build: maybe-all-build-texinfo
 all-build: maybe-all-build-fixincludes
@@ -3300,6 +3301,63 @@ all-build-flex: configure-build-flex
 
 
 
+.PHONY: configure-build-gnulib maybe-configure-build-gnulib
+maybe-configure-build-gnulib:
+@if gcc-bootstrap
+configure-build-gnulib: stage_current
+@endif gcc-bootstrap
+@if build-gnulib
+maybe-configure-build-gnulib: configure-build-gnulib
+configure-build-gnulib: 
+	@: $(MAKE); $(unstage)
+	@r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
+	test ! -f $(BUILD_SUBDIR)/gnulib/Makefile || exit 0; \
+	$(SHELL) $(srcdir)/mkinstalldirs $(BUILD_SUBDIR)/gnulib; \
+	$(BUILD_EXPORTS)  \
+	echo Configuring in $(BUILD_SUBDIR)/gnulib; \
+	cd "$(BUILD_SUBDIR)/gnulib" || exit 1; \
+	case $(srcdir) in \
+	  /* | [A-Za-z]:[\\/]*) topdir=$(srcdir) ;; \
+	  *) topdir=`echo $(BUILD_SUBDIR)/gnulib/ | \
+		sed -e 's,\./,,g' -e 's,[^/]*/,../,g' `$(srcdir) ;; \
+	esac; \
+	module_srcdir=gnulib; \
+	rm -f no-such-file || : ; \
+	CONFIG_SITE=no-such-file $(SHELL) \
+	  $$s/$$module_srcdir/configure \
+	  --srcdir=$${topdir}/$$module_srcdir \
+	  $(BUILD_CONFIGARGS) --build=${build_alias} --host=${build_alias} \
+	  --target=${target_alias}  \
+	  || exit 1
+@endif build-gnulib
+
+
+
+
+
+.PHONY: all-build-gnulib maybe-all-build-gnulib
+maybe-all-build-gnulib:
+@if gcc-bootstrap
+all-build-gnulib: stage_current
+@endif gcc-bootstrap
+@if build-gnulib
+TARGET-build-gnulib=all
+maybe-all-build-gnulib: all-build-gnulib
+all-build-gnulib: configure-build-gnulib
+	@: $(MAKE); $(unstage)
+	@r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
+	$(BUILD_EXPORTS)  \
+	(cd $(BUILD_SUBDIR)/gnulib && \
+	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(EXTRA_BUILD_FLAGS)   \
+		$(TARGET-build-gnulib))
+@endif build-gnulib
+
+
+
+
+
 .PHONY: configure-build-m4 maybe-configure-build-m4
 maybe-configure-build-m4:
 @if gcc-bootstrap
@@ -66659,6 +66717,7 @@ install-sid: maybe-install-tcl
 install-strip-sid: maybe-install-strip-tcl
 install-sid: maybe-install-tk
 install-strip-sid: maybe-install-strip-tk
+configure-sim: maybe-all-build-gnulib
 configure-sim: maybe-all-gnulib
 configure-sim: maybe-all-readline
 all-fastjar: maybe-all-build-texinfo

configure

@@ -9957,6 +9957,11 @@ case " ${configdirs} " in
     configdirs="${configdirs} gnulib"
     ;;
 esac
+case " ${configdirs} " in
+  *\ sim\ *)
+    build_configdirs="${build_configdirs} gnulib"
+    ;;
+esac
 
 # Strip out unwanted targets.
 

configure.ac

@@ -3076,6 +3076,11 @@ case " ${configdirs} " in
     configdirs="${configdirs} gnulib"
     ;;
 esac
+case " ${configdirs} " in
+  *\ sim\ *)
+    build_configdirs="${build_configdirs} gnulib"
+    ;;
+esac
 
 # Strip out unwanted targets.
 

gnulib/Makefile.gnulib.inc.in

@@ -31,16 +31,20 @@
 #
 # INCGNU: A list of -I.... include paths that should be passed to the
 #        compiler, these are where the gnulib headers can be found.
+#
+# When building for --build, the variables will be prefixed with BUILD_.
 
 # Packages must define the relative path to gnulib's parent dir.
 ifndef GNULIB_PARENT_DIR
 $(error missing GNULIB_PARENT_DIR)
 endif
 
-LIBGNU = $(GNULIB_PARENT_DIR)/gnulib/import/libgnu.a
+@VAR_PREFIX@LIBGNU = $(GNULIB_PARENT_DIR)/@BUILD_SUBDIR@gnulib/import/libgnu.a
-LIBGNU_EXTRA_LIBS = @FREXPL_LIBM@ @FREXP_LIBM@ @INET_NTOP_LIB@ \
+@VAR_PREFIX@LIBGNU_EXTRA_LIBS = \
+	@FREXPL_LIBM@ @FREXP_LIBM@ @INET_NTOP_LIB@ \
 	@LIBTHREAD@ @LIB_GETLOGIN@ @LIB_GETRANDOM@ \
 	@LIB_HARD_LOCALE@ @LIB_MBRTOWC@ \
 	@LIB_SETLOCALE_NULL@ @LIBINTL@ @LIB_SELECT@ @LIBSOCKET@
-INCGNU = -I$(srcdir)/$(GNULIB_PARENT_DIR)/gnulib/import \
+@VAR_PREFIX@INCGNU = \
-         -I$(GNULIB_PARENT_DIR)/gnulib/import
+	-I$(srcdir)/$(GNULIB_PARENT_DIR)/gnulib/import \
+	-I$(GNULIB_PARENT_DIR)/@BUILD_SUBDIR@gnulib/import

gnulib/Makefile.in

@@ -366,6 +366,7 @@ BITSIZEOF_SIG_ATOMIC_T = @BITSIZEOF_SIG_ATOMIC_T@
 BITSIZEOF_SIZE_T = @BITSIZEOF_SIZE_T@
 BITSIZEOF_WCHAR_T = @BITSIZEOF_WCHAR_T@
 BITSIZEOF_WINT_T = @BITSIZEOF_WINT_T@
+BUILD_SUBDIR = @BUILD_SUBDIR@
 CC = @CC@
 CCDEPMODE = @CCDEPMODE@
 CFLAGS = @CFLAGS@
@@ -1674,6 +1675,7 @@ UNISTD_H_DEFINES_STRUCT_TIMESPEC = @UNISTD_H_DEFINES_STRUCT_TIMESPEC@
 UNISTD_H_HAVE_SYS_RANDOM_H = @UNISTD_H_HAVE_SYS_RANDOM_H@
 UNISTD_H_HAVE_WINSOCK2_H = @UNISTD_H_HAVE_WINSOCK2_H@
 UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS = @UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@
+VAR_PREFIX = @VAR_PREFIX@
 VERSION = @VERSION@
 WCHAR_T_SUFFIX = @WCHAR_T_SUFFIX@
 WINDOWS_64_BIT_OFF_T = @WINDOWS_64_BIT_OFF_T@

gnulib/configure

@@ -635,6 +635,8 @@ gl_LTLIBOBJS
 gl_LIBOBJS
 LTLIBOBJS
 LIBOBJS
+VAR_PREFIX
+BUILD_SUBDIR
 LN_S
 AM_BACKSLASH
 AM_DEFAULT_VERBOSITY
@@ -2219,6 +2221,7 @@ enable_threads
 enable_cross_guesses
 enable_dependency_tracking
 enable_silent_rules
+with_build_subdir
 '
       ac_precious_vars='build_alias
 host_alias
@@ -2866,6 +2869,12 @@ Optional Features:
   --enable-silent-rules   less verbose build output (undo: "make V=1")
   --disable-silent-rules  verbose build output (undo: "make V=0")
 
+Optional Packages:
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --with-build-subdir=SUBDIR
+                          Configuring in a subdirectory for build
+
 Some influential environment variables:
   CC          C compiler command
   CFLAGS      C compiler flags
@@ -13813,8 +13822,8 @@ rm -f core conftest.err conftest.$ac_objext \
         LIBS=$save_LIBS
         test $gl_pthread_api = yes && break
       done
-      echo "$as_me:13816: gl_pthread_api=$gl_pthread_api" >&5
+      echo "$as_me:13825: gl_pthread_api=$gl_pthread_api" >&5
-      echo "$as_me:13817: LIBPTHREAD=$LIBPTHREAD" >&5
+      echo "$as_me:13826: LIBPTHREAD=$LIBPTHREAD" >&5
 
       gl_pthread_in_glibc=no
       # On Linux with glibc >= 2.34, libc contains the fully functional
@@ -13839,7 +13848,7 @@ rm -f conftest*
 
           ;;
       esac
-      echo "$as_me:13842: gl_pthread_in_glibc=$gl_pthread_in_glibc" >&5
+      echo "$as_me:13851: gl_pthread_in_glibc=$gl_pthread_in_glibc" >&5
 
       # Test for libpthread by looking for pthread_kill. (Not pthread_self,
       # since it is defined as a macro on OSF/1.)
@@ -13993,7 +14002,7 @@ fi
 
         fi
       fi
-      echo "$as_me:13996: LIBPMULTITHREAD=$LIBPMULTITHREAD" >&5
+      echo "$as_me:14005: LIBPMULTITHREAD=$LIBPMULTITHREAD" >&5
     fi
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether POSIX threads API is available" >&5
 $as_echo_n "checking whether POSIX threads API is available... " >&6; }
@@ -17070,8 +17079,8 @@ rm -f core conftest.err conftest.$ac_objext \
         LIBS=$save_LIBS
         test $gl_pthread_api = yes && break
       done
-      echo "$as_me:17073: gl_pthread_api=$gl_pthread_api" >&5
+      echo "$as_me:17082: gl_pthread_api=$gl_pthread_api" >&5
-      echo "$as_me:17074: LIBPTHREAD=$LIBPTHREAD" >&5
+      echo "$as_me:17083: LIBPTHREAD=$LIBPTHREAD" >&5
 
       gl_pthread_in_glibc=no
       # On Linux with glibc >= 2.34, libc contains the fully functional
@@ -17096,7 +17105,7 @@ rm -f conftest*
 
           ;;
       esac
-      echo "$as_me:17099: gl_pthread_in_glibc=$gl_pthread_in_glibc" >&5
+      echo "$as_me:17108: gl_pthread_in_glibc=$gl_pthread_in_glibc" >&5
 
       # Test for libpthread by looking for pthread_kill. (Not pthread_self,
       # since it is defined as a macro on OSF/1.)
@@ -17250,7 +17259,7 @@ fi
 
         fi
       fi
-      echo "$as_me:17253: LIBPMULTITHREAD=$LIBPMULTITHREAD" >&5
+      echo "$as_me:17262: LIBPMULTITHREAD=$LIBPMULTITHREAD" >&5
     fi
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether POSIX threads API is available" >&5
 $as_echo_n "checking whether POSIX threads API is available... " >&6; }
@@ -17476,8 +17485,8 @@ rm -f core conftest.err conftest.$ac_objext \
         LIBS=$save_LIBS
         test $gl_pthread_api = yes && break
       done
-      echo "$as_me:17479: gl_pthread_api=$gl_pthread_api" >&5
+      echo "$as_me:17488: gl_pthread_api=$gl_pthread_api" >&5
-      echo "$as_me:17480: LIBPTHREAD=$LIBPTHREAD" >&5
+      echo "$as_me:17489: LIBPTHREAD=$LIBPTHREAD" >&5
 
       gl_pthread_in_glibc=no
       # On Linux with glibc >= 2.34, libc contains the fully functional
@@ -17502,7 +17511,7 @@ rm -f conftest*
 
           ;;
       esac
-      echo "$as_me:17505: gl_pthread_in_glibc=$gl_pthread_in_glibc" >&5
+      echo "$as_me:17514: gl_pthread_in_glibc=$gl_pthread_in_glibc" >&5
 
       # Test for libpthread by looking for pthread_kill. (Not pthread_self,
       # since it is defined as a macro on OSF/1.)
@@ -17656,7 +17665,7 @@ fi
 
         fi
       fi
-      echo "$as_me:17659: LIBPMULTITHREAD=$LIBPMULTITHREAD" >&5
+      echo "$as_me:17668: LIBPMULTITHREAD=$LIBPMULTITHREAD" >&5
     fi
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether POSIX threads API is available" >&5
 $as_echo_n "checking whether POSIX threads API is available... " >&6; }
@@ -36621,6 +36630,23 @@ fi
 # Checks for libraries.  #
 # ---------------------- #
 
+
+# Check whether --with-build-subdir was given.
+if test "${with_build_subdir+set}" = set; then :
+  withval=$with_build_subdir;
+fi
+
+
+VAR_PREFIX=
+BUILD_SUBDIR=
+if test -n "${with_build_subdir}"; then :
+    VAR_PREFIX="BUILD_"
+  BUILD_SUBDIR="${with_build_subdir}/"
+
+fi
+
+
+
 ac_config_files="$ac_config_files Makefile.gnulib.inc"
 
 

gnulib/configure.ac

@@ -56,6 +56,18 @@ AC_CHECK_TOOL(AR, ar)
 # Checks for libraries.  #
 # ---------------------- #
 
+AC_ARG_WITH(build-subdir,
+  [AS_HELP_STRING([--with-build-subdir=SUBDIR], [Configuring in a subdirectory for build])])
+
+VAR_PREFIX=
+BUILD_SUBDIR=
+AS_IF([test -n "${with_build_subdir}"], [dnl
+  VAR_PREFIX="BUILD_"
+  BUILD_SUBDIR="${with_build_subdir}/"
+])
+AC_SUBST(BUILD_SUBDIR)
+AC_SUBST(VAR_PREFIX)
+
 AC_CONFIG_FILES(Makefile.gnulib.inc)
 
 AC_OUTPUT(Makefile import/Makefile,

gnulib/import/Makefile.in

@@ -700,6 +700,7 @@ BITSIZEOF_SIG_ATOMIC_T = @BITSIZEOF_SIG_ATOMIC_T@
 BITSIZEOF_SIZE_T = @BITSIZEOF_SIZE_T@
 BITSIZEOF_WCHAR_T = @BITSIZEOF_WCHAR_T@
 BITSIZEOF_WINT_T = @BITSIZEOF_WINT_T@
+BUILD_SUBDIR = @BUILD_SUBDIR@
 CC = @CC@
 CCDEPMODE = @CCDEPMODE@
 CFLAGS = @CFLAGS@
@@ -2008,6 +2009,7 @@ UNISTD_H_DEFINES_STRUCT_TIMESPEC = @UNISTD_H_DEFINES_STRUCT_TIMESPEC@
 UNISTD_H_HAVE_SYS_RANDOM_H = @UNISTD_H_HAVE_SYS_RANDOM_H@
 UNISTD_H_HAVE_WINSOCK2_H = @UNISTD_H_HAVE_WINSOCK2_H@
 UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS = @UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@
+VAR_PREFIX = @VAR_PREFIX@
 VERSION = @VERSION@
 WCHAR_T_SUFFIX = @WCHAR_T_SUFFIX@
 WINDOWS_64_BIT_OFF_T = @WINDOWS_64_BIT_OFF_T@

sim/Makefile.am

@@ -20,6 +20,7 @@ ACLOCAL_AMFLAGS = -Im4 -I.. -I../config
 
 GNULIB_PARENT_DIR = ..
 @am__include@ @am__quote@$(GNULIB_PARENT_DIR)/gnulib/Makefile.gnulib.inc@am__quote@
+@am__include@ @am__quote@$(GNULIB_PARENT_DIR)/build-$(build)/gnulib/Makefile.gnulib.inc@am__quote@
 
 srccom = $(srcdir)/common
 srcroot = $(srcdir)/..
@@ -66,11 +67,14 @@ AM_CPPFLAGS = \
 	$(AM_CPPFLAGS_$(subst -,_,$(@D)_$(@F)))
 
 AM_CPPFLAGS_FOR_BUILD = \
+	$(BUILD_INCGNU) \
+	-I../build-$(build) \
 	-I$(srcroot)/include \
 	$(SIM_HW_CFLAGS) \
 	$(SIM_INLINE)
 COMPILE_FOR_BUILD = $(CC_FOR_BUILD) $(AM_CPPFLAGS_FOR_BUILD) $(CPPFLAGS_FOR_BUILD) $(CFLAGS_FOR_BUILD)
 LINK_FOR_BUILD = $(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) -o $@
+LIBS_FOR_BUILD = $(BUILD_LIBGNU) $(BUILD_LIBGNU_EXTRA_LIBS)
 
 ## Deps to add to the all-recursive target.  These are built before descending
 ## into any subdirs.

sim/Makefile.in

@@ -980,7 +980,8 @@ bpf_run_OBJECTS = $(am_bpf_run_OBJECTS)
 @SIM_ENABLE_ARCH_cr16_TRUE@	cr16/gencode.$(OBJEXT)
 cr16_gencode_OBJECTS = $(am_cr16_gencode_OBJECTS)
 @SIM_ENABLE_ARCH_cr16_TRUE@cr16_gencode_DEPENDENCIES =  \
-@SIM_ENABLE_ARCH_cr16_TRUE@	cr16/cr16-opc.o
+@SIM_ENABLE_ARCH_cr16_TRUE@	cr16/cr16-opc.o \
+@SIM_ENABLE_ARCH_cr16_TRUE@	$(am__DEPENDENCIES_1)
 am_cr16_run_OBJECTS =
 cr16_run_OBJECTS = $(am_cr16_run_OBJECTS)
 @SIM_ENABLE_ARCH_cr16_TRUE@cr16_run_DEPENDENCIES = cr16/nrun.o \
@@ -998,7 +999,8 @@ cris_rvdummy_OBJECTS = $(am_cris_rvdummy_OBJECTS)
 @SIM_ENABLE_ARCH_d10v_TRUE@	d10v/gencode.$(OBJEXT)
 d10v_gencode_OBJECTS = $(am_d10v_gencode_OBJECTS)
 @SIM_ENABLE_ARCH_d10v_TRUE@d10v_gencode_DEPENDENCIES =  \
-@SIM_ENABLE_ARCH_d10v_TRUE@	d10v/d10v-opc.o
+@SIM_ENABLE_ARCH_d10v_TRUE@	d10v/d10v-opc.o \
+@SIM_ENABLE_ARCH_d10v_TRUE@	$(am__DEPENDENCIES_1)
 am_d10v_run_OBJECTS =
 d10v_run_OBJECTS = $(am_d10v_run_OBJECTS)
 @SIM_ENABLE_ARCH_d10v_TRUE@d10v_run_DEPENDENCIES = d10v/nrun.o \
@@ -1040,7 +1042,7 @@ igen_gen_OBJECTS = $(am_igen_gen_OBJECTS)
 igen_gen_DEPENDENCIES = igen/gen-main.o igen/libigen.a
 am_igen_igen_OBJECTS = igen/igen.$(OBJEXT)
 igen_igen_OBJECTS = $(am_igen_igen_OBJECTS)
-igen_igen_DEPENDENCIES = igen/libigen.a
+igen_igen_DEPENDENCIES = igen/libigen.a $(am__DEPENDENCIES_1)
 am_igen_ld_cache_OBJECTS =
 igen_ld_cache_OBJECTS = $(am_igen_ld_cache_OBJECTS)
 igen_ld_cache_DEPENDENCIES = igen/ld-cache-main.o igen/libigen.a
@@ -1065,7 +1067,8 @@ lm32_run_OBJECTS = $(am_lm32_run_OBJECTS)
 @SIM_ENABLE_ARCH_m32c_TRUE@am_m32c_opc2c_OBJECTS =  \
 @SIM_ENABLE_ARCH_m32c_TRUE@	m32c/opc2c.$(OBJEXT)
 m32c_opc2c_OBJECTS = $(am_m32c_opc2c_OBJECTS)
-m32c_opc2c_LDADD = $(LDADD)
+@SIM_ENABLE_ARCH_m32c_TRUE@m32c_opc2c_DEPENDENCIES =  \
+@SIM_ENABLE_ARCH_m32c_TRUE@	$(am__DEPENDENCIES_1)
 am_m32c_run_OBJECTS =
 m32c_run_OBJECTS = $(am_m32c_run_OBJECTS)
 @SIM_ENABLE_ARCH_m32c_TRUE@m32c_run_DEPENDENCIES = m32c/main.o \
@@ -1077,7 +1080,8 @@ m32r_run_OBJECTS = $(am_m32r_run_OBJECTS)
 @SIM_ENABLE_ARCH_m68hc11_TRUE@am_m68hc11_gencode_OBJECTS =  \
 @SIM_ENABLE_ARCH_m68hc11_TRUE@	m68hc11/gencode.$(OBJEXT)
 m68hc11_gencode_OBJECTS = $(am_m68hc11_gencode_OBJECTS)
-m68hc11_gencode_LDADD = $(LDADD)
+@SIM_ENABLE_ARCH_m68hc11_TRUE@m68hc11_gencode_DEPENDENCIES =  \
+@SIM_ENABLE_ARCH_m68hc11_TRUE@	$(am__DEPENDENCIES_1)
 am_m68hc11_run_OBJECTS =
 m68hc11_run_OBJECTS = $(am_m68hc11_run_OBJECTS)
 @SIM_ENABLE_ARCH_m68hc11_TRUE@m68hc11_run_DEPENDENCIES =  \
@@ -1159,7 +1163,8 @@ rx_run_OBJECTS = $(am_rx_run_OBJECTS)
 @SIM_ENABLE_ARCH_rx_TRUE@	$(am__DEPENDENCIES_4)
 @SIM_ENABLE_ARCH_sh_TRUE@am_sh_gencode_OBJECTS = sh/gencode.$(OBJEXT)
 sh_gencode_OBJECTS = $(am_sh_gencode_OBJECTS)
-sh_gencode_LDADD = $(LDADD)
+@SIM_ENABLE_ARCH_sh_TRUE@sh_gencode_DEPENDENCIES =  \
+@SIM_ENABLE_ARCH_sh_TRUE@	$(am__DEPENDENCIES_1)
 am_sh_run_OBJECTS =
 sh_run_OBJECTS = $(am_sh_run_OBJECTS)
 @SIM_ENABLE_ARCH_sh_TRUE@sh_run_DEPENDENCIES = sh/nrun.o sh/libsim.a \
@@ -1860,10 +1865,12 @@ AM_CPPFLAGS = $(INCGNU) -I$(srcroot) -I$(srcroot)/include -I../bfd \
 	-I.. -I$(@D) -I$(srcdir)/$(@D) $(SIM_HW_CFLAGS) $(SIM_INLINE) \
 	$(AM_CPPFLAGS_$(subst -,_,$(@D))) $(AM_CPPFLAGS_$(subst \
 	-,_,$(@D)_$(@F))) -I$(srcdir)/common -DSIM_TOPDIR_BUILD
-AM_CPPFLAGS_FOR_BUILD = -I$(srcroot)/include $(SIM_HW_CFLAGS) \
+AM_CPPFLAGS_FOR_BUILD = $(BUILD_INCGNU) -I../build-$(build) \
-	$(SIM_INLINE) -I$(srcdir)/common
+	-I$(srcroot)/include $(SIM_HW_CFLAGS) $(SIM_INLINE) \
+	-I$(srcdir)/common
 COMPILE_FOR_BUILD = $(CC_FOR_BUILD) $(AM_CPPFLAGS_FOR_BUILD) $(CPPFLAGS_FOR_BUILD) $(CFLAGS_FOR_BUILD)
 LINK_FOR_BUILD = $(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) -o $@
+LIBS_FOR_BUILD = $(BUILD_LIBGNU) $(BUILD_LIBGNU_EXTRA_LIBS)
 SIM_ALL_RECURSIVE_DEPS = $(am__append_89)
 SIM_INSTALL_DATA_LOCAL_DEPS = 
 SIM_INSTALL_EXEC_LOCAL_DEPS = $(am__append_30)
@@ -2007,7 +2014,7 @@ igen_libigen_a_SOURCES = \
 	igen/gen.c
 
 igen_igen_SOURCES = igen/igen.c
-igen_igen_LDADD = igen/libigen.a
+igen_igen_LDADD = igen/libigen.a $(LIBS_FOR_BUILD)
 igen_filter_SOURCES = 
 igen_filter_LDADD = igen/filter-main.o igen/libigen.a
 igen_gen_SOURCES = 
@@ -2210,7 +2217,7 @@ testsuite_common_CPPFLAGS = \
 @SIM_ENABLE_ARCH_cr16_TRUE@	cr16/table.c
 
 @SIM_ENABLE_ARCH_cr16_TRUE@cr16_gencode_SOURCES = cr16/gencode.c
-@SIM_ENABLE_ARCH_cr16_TRUE@cr16_gencode_LDADD = cr16/cr16-opc.o
+@SIM_ENABLE_ARCH_cr16_TRUE@cr16_gencode_LDADD = cr16/cr16-opc.o $(LIBS_FOR_BUILD)
 @SIM_ENABLE_ARCH_cris_TRUE@AM_CFLAGS_cris_mloopv10f.o = $(SIM_CFLAG_WNO_UNUSED_BUT_SET_VARIABLE) \
 @SIM_ENABLE_ARCH_cris_TRUE@	$(SIM_CFLAG_WNO_SHADOW_LOCAL)
 @SIM_ENABLE_ARCH_cris_TRUE@AM_CFLAGS_cris_mloopv32f.o = $(SIM_CFLAG_WNO_UNUSED_BUT_SET_VARIABLE)
@@ -2286,7 +2293,7 @@ testsuite_common_CPPFLAGS = \
 @SIM_ENABLE_ARCH_d10v_TRUE@	d10v/table.c
 
 @SIM_ENABLE_ARCH_d10v_TRUE@d10v_gencode_SOURCES = d10v/gencode.c
-@SIM_ENABLE_ARCH_d10v_TRUE@d10v_gencode_LDADD = d10v/d10v-opc.o
+@SIM_ENABLE_ARCH_d10v_TRUE@d10v_gencode_LDADD = d10v/d10v-opc.o $(LIBS_FOR_BUILD)
 @SIM_ENABLE_ARCH_erc32_TRUE@READLINE_SRC = $(srcroot)/readline/readline
 @SIM_ENABLE_ARCH_erc32_TRUE@AM_CPPFLAGS_erc32 = $(READLINE_CFLAGS) \
 @SIM_ENABLE_ARCH_erc32_TRUE@	-DFAST_UART
@@ -2528,6 +2535,7 @@ testsuite_common_CPPFLAGS = \
 @SIM_ENABLE_ARCH_m32c_TRUE@	m32c/r8c.c
 
 @SIM_ENABLE_ARCH_m32c_TRUE@m32c_opc2c_SOURCES = m32c/opc2c.c
+@SIM_ENABLE_ARCH_m32c_TRUE@m32c_opc2c_LDADD = $(LIBS_FOR_BUILD)
 
 # opc2c leaks memory, and therefore makes AddressSanitizer unhappy.  Disable
 # leak detection while running it.
@@ -2625,6 +2633,7 @@ testsuite_common_CPPFLAGS = \
 @SIM_ENABLE_ARCH_m68hc11_TRUE@	m68hc11/m68hc12int.c
 
 @SIM_ENABLE_ARCH_m68hc11_TRUE@m68hc11_gencode_SOURCES = m68hc11/gencode.c
+@SIM_ENABLE_ARCH_m68hc11_TRUE@m68hc11_gencode_LDADD = $(LIBS_FOR_BUILD)
 @SIM_ENABLE_ARCH_mcore_TRUE@nodist_mcore_libsim_a_SOURCES = \
 @SIM_ENABLE_ARCH_mcore_TRUE@	mcore/modules.c
 
@@ -3053,6 +3062,7 @@ testsuite_common_CPPFLAGS = \
 @SIM_ENABLE_ARCH_sh_TRUE@	sh/table.c
 
 @SIM_ENABLE_ARCH_sh_TRUE@sh_gencode_SOURCES = sh/gencode.c
+@SIM_ENABLE_ARCH_sh_TRUE@sh_gencode_LDADD = $(LIBS_FOR_BUILD)
 @SIM_ENABLE_ARCH_v850_TRUE@AM_CPPFLAGS_v850 = -DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=31
 @SIM_ENABLE_ARCH_v850_TRUE@nodist_v850_libsim_a_SOURCES = \
 @SIM_ENABLE_ARCH_v850_TRUE@	v850/modules.c
@@ -4909,6 +4919,7 @@ uninstall-am: uninstall-armdocDATA uninstall-dtbDATA \
 .PRECIOUS: Makefile
 
 @am__include@ @am__quote@$(GNULIB_PARENT_DIR)/gnulib/Makefile.gnulib.inc@am__quote@
+@am__include@ @am__quote@$(GNULIB_PARENT_DIR)/build-$(build)/gnulib/Makefile.gnulib.inc@am__quote@
 
 # Generate target constants for newlib/libgloss from its source tree.
 # This file is shipped with distributions so we build in the source dir.

sim/cr16/gencode.c

@@ -18,7 +18,7 @@
    along with this program. If not, see <http://www.gnu.org/licenses/>.  */
 
 /* This must come before any other includes.  */
-#include "defs.h"
+#include "gnulib/config.h"
 
 #include <stdio.h>
 #include <ctype.h>

sim/cr16/local.mk

@@ -55,7 +55,7 @@ BUILT_SOURCES += %D%/simops.h
 %D%/modules.c: | $(%C%_BUILD_OUTPUTS)
 
 %C%_gencode_SOURCES = %D%/gencode.c
-%C%_gencode_LDADD = %D%/cr16-opc.o
+%C%_gencode_LDADD = %D%/cr16-opc.o $(LIBS_FOR_BUILD)
 
 # These rules are copied from automake, but tweaked to use FOR_BUILD variables.
 %D%/gencode$(EXEEXT): $(%C%_gencode_OBJECTS) $(%C%_gencode_DEPENDENCIES) %D%/$(am__dirstamp)

sim/d10v/gencode.c

@@ -1,3 +1,6 @@
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
+
 #include <stdio.h>
 #include <ctype.h>
 #include <limits.h>

sim/d10v/local.mk

@@ -56,7 +56,7 @@ BUILT_SOURCES += %D%/simops.h
 %D%/modules.c: | $(%C%_BUILD_OUTPUTS)
 
 %C%_gencode_SOURCES = %D%/gencode.c
-%C%_gencode_LDADD = %D%/d10v-opc.o
+%C%_gencode_LDADD = %D%/d10v-opc.o $(LIBS_FOR_BUILD)
 
 # These rules are copied from automake, but tweaked to use FOR_BUILD variables.
 %D%/gencode$(EXEEXT): $(%C%_gencode_OBJECTS) $(%C%_gencode_DEPENDENCIES) %D%/$(am__dirstamp)

sim/igen/filter.c

@@ -19,6 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
 
 #include <stdio.h>
 #include <string.h>

sim/igen/filter_host.c

@@ -19,6 +19,9 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
+
 #include "filter_host.h"
 
 /* Shorten traces by eliminating the directory component to filenames.  */

sim/igen/gen-engine.c

@@ -19,6 +19,9 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
+
 #include "misc.h"
 #include "lf.h"
 #include "table.h"

sim/igen/gen-icache.c

@@ -19,6 +19,9 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
+
 #include <stdlib.h>
 
 #include "misc.h"

sim/igen/gen-idecode.c

@@ -19,6 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
 
 #include "misc.h"
 #include "lf.h"

sim/igen/gen-itable.c

@@ -19,7 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
 
 #include "misc.h"
 #include "lf.h"

sim/igen/gen-model.c

@@ -19,6 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
 
 #include "misc.h"
 #include "lf.h"

sim/igen/gen-semantics.c

@@ -19,7 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
 
 #include "misc.h"
 #include "lf.h"

sim/igen/gen-support.c

@@ -19,6 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
 
 #include "misc.h"
 #include "lf.h"

sim/igen/gen.c

@@ -19,6 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
 
 #include "misc.h"
 #include "lf.h"

sim/igen/igen.c

@@ -19,6 +19,9 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
+
 #include <getopt.h>
 #include <stdlib.h>
 

sim/igen/ld-cache.c

@@ -19,7 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
 
 #include "misc.h"
 #include "lf.h"

sim/igen/ld-decode.c

@@ -19,9 +19,11 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-
 /* load the opcode stat structure */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
+
 #include "misc.h"
 #include "lf.h"
 #include "table.h"

sim/igen/ld-insn.c

@@ -19,6 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
 
 #include "misc.h"
 #include "lf.h"

sim/igen/lf.c

@@ -19,6 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
 
 #include <stdbool.h>
 #include <stdio.h>

sim/igen/local.mk

@@ -47,7 +47,7 @@ EXTRA_LIBRARIES += %D%/libigen.a
 	%D%/gen.c
 
 %C%_igen_SOURCES = %D%/igen.c
-%C%_igen_LDADD = %D%/libigen.a
+%C%_igen_LDADD = %D%/libigen.a $(LIBS_FOR_BUILD)
 
 # These rules are copied from automake, but tweaked to use FOR_BUILD variables.
 %D%/libigen.a: $(igen_libigen_a_OBJECTS) $(igen_libigen_a_DEPENDENCIES) $(EXTRA_igen_libigen_a_DEPENDENCIES) %D%/$(am__dirstamp)

sim/igen/misc.c

@@ -19,7 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
 
 #include <stdio.h>
 #include <stdarg.h>

sim/igen/table.c

@@ -19,7 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
 
 #include <sys/types.h>
 #include <sys/stat.h>

sim/m32c/local.mk

@@ -61,6 +61,7 @@ noinst_PROGRAMS += %D%/run
 %D%/modules.c: | $(%C%_BUILD_OUTPUTS)
 
 %C%_opc2c_SOURCES = %D%/opc2c.c
+%C%_opc2c_LDADD = $(LIBS_FOR_BUILD)
 
 # These rules are copied from automake, but tweaked to use FOR_BUILD variables.
 %D%/opc2c$(EXEEXT): $(%C%_opc2c_OBJECTS) $(%C%_opc2c_DEPENDENCIES) %D%/$(am__dirstamp)

sim/m32c/opc2c.c

@@ -19,7 +19,7 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* This must come before any other includes.  */
-#include "defs.h"
+#include "gnulib/config.h"
 
 #include <stdio.h>
 #include <string.h>

sim/m68hc11/gencode.c

@@ -18,7 +18,7 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* This must come before any other includes.  */
-#include "defs.h"
+#include "gnulib/config.h"
 
 #include <stdio.h>
 #include <stdlib.h>

sim/m68hc11/local.mk

@@ -71,6 +71,7 @@ noinst_PROGRAMS += %D%/run
 %D%/modules.c: | $(%C%_BUILD_OUTPUTS)
 
 %C%_gencode_SOURCES = %D%/gencode.c
+%C%_gencode_LDADD = $(LIBS_FOR_BUILD)
 
 # These rules are copied from automake, but tweaked to use FOR_BUILD variables.
 %D%/gencode$(EXEEXT): $(%C%_gencode_OBJECTS) $(%C%_gencode_DEPENDENCIES) %D%/$(am__dirstamp)

sim/sh/gencode.c

@@ -30,6 +30,9 @@
 
 */
 
+/* This must come before any other includes.  */
+#include "gnulib/config.h"
+
 #include <ctype.h>
 #include <stdio.h>
 #include <stdlib.h>

sim/sh/local.mk

@@ -57,6 +57,7 @@ BUILT_SOURCES += \
 %D%/modules.c: | $(%C%_BUILD_OUTPUTS)
 
 %C%_gencode_SOURCES = %D%/gencode.c
+%C%_gencode_LDADD = $(LIBS_FOR_BUILD)
 
 # These rules are copied from automake, but tweaked to use FOR_BUILD variables.
 %D%/gencode$(EXEEXT): $(%C%_gencode_OBJECTS) $(%C%_gencode_DEPENDENCIES) %D%/$(am__dirstamp)