forked from Imagelibrary/rtems
b62a92c804
The patch below actuallly consists of two patches: 1) moving librpc to c/src/librpc similar to what has been done to librtems++ 2) reworked configure scripts, many safety and dependency checks added to aclocal/*.m4 macros + configuration fixes. To apply: mkdir c/src/librpc mkdir c/src/librpc/src cp c/src/lib/librpc/*.c c/src/librpc/src cp c/src/lib/librpc/Makefile.in c/src/librpc/src mkdir c/src/librpc/include mkdir c/src/librpc/include/rpc cp c/src/lib/include/rpc/* c/src/librpc/include/rpc patch -p1 < ../rtems-rc-19990820-7.diff rm -rf c/src/lib/librpc rm -rf c/src/lib/include/rpc ./autogen The additional checks in aclocal/*m4 macros add rather restrictive, sometimes unnecessarily restrictive constraints on the sequence of how macros can be used in a configure.in script. Adding them has let my problems with some more complicated configuration options vanish. Apparently some macros had not been in the required order . ---- Now I still get some linking errors for some cpus and bsps, esp when linking cdtest, but also at other locations: e.g. this happens for mips64orion/p4600: # make[5]: Entering directory `/lfs/poseidon/users/rtems/src/multi/build/mips64orion-rtems/c/p4600/tests/samples/hello' /opt/rtems/bin/mips64orion-rtems-gcc --pipe -B../../../../../../p4600/lib/ -specs bsp_specs -qrtems -DP4000 -DCPU_R4000 -DP3_DIAG -D_R4000 -D__mips=3 -mcpu=4600 -G0 -I../../../../../../p4600/lib/include/networking -g -Wall -ansi -fasm -O4 -fomit-frame-pointer -o o-p4600/hello.exe o-p4600/init.o ../../../../../../p4600/lib/no-dpmem.rel ../../../../../../p4600/lib/no-event.rel ../../../../../../p4600/lib/no-msg.rel ../../../../../../p4600/lib/no-mp.rel ../../../../../../p4600/lib/no-part.rel ../../../../../../p4600/lib/no-signal.rel ../../../../../../p4600/lib/no-timer.rel ../../../../../../p4600/lib/no-rtmon.rel /opt/rtems/mips64orion-rtems/lib/libc.a(dtoa.o): In function `_dtoa_r': /opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol /opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol /opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol collect2: ld returned 1 exit status # mips64orion-rtems-gcc -v Reading specs from /opt/rtems/lib/gcc-lib/mips64orion-rtems/2.95.1/specs gcc version 2.95.1 19990816 (release) # mips64orion-rtems-ld -v GNU ld version 2.9.5 (with BFD 2.9.5)
79 lines
2.0 KiB
Plaintext
79 lines
2.0 KiB
Plaintext
dnl
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dnl $Id$
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dnl
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dnl Check for target g++
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dnl
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dnl 98/05/20 Ralf Corsepius (corsepiu@faw.uni-ulm.de)
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dnl Completely reworked
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AC_DEFUN(RTEMS_PROG_CXX,
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[
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AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
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AC_BEFORE([$0], [AC_PROG_CXX])dnl
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AC_BEFORE([$0], [RTEMS_CANONICALIZE_TOOLS])dnl
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AC_REQUIRE([RTEMS_TOOL_PREFIX])dnl
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dnl Only accept g++ and c++
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dnl NOTE: This might be too restrictive for native compilation
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AC_PATH_PROGS(CXX_FOR_TARGET, "$program_prefix"g++ "$program_prefix"c++)
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test -z "$CXX_FOR_TARGET" \
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&& AC_MSG_ERROR([no acceptable c++ found in \$PATH])
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dnl backup
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rtems_save_CXX=$CXX
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rtems_save_CXXFLAGS=$CXXFLAGS
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dnl temporarily set CXX
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CXX=$CXX_FOR_TARGET
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AC_PROG_CXX_WORKS
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AC_PROG_CXX_GNU
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if test $ac_cv_prog_gxx = yes; then
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GXX=yes
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dnl Check whether -g works, even if CXXFLAGS is set, in case the package
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dnl plays around with CXXFLAGS (such as to build both debugging and
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dnl normal versions of a library), tasteless as that idea is.
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ac_test_CXXFLAGS="${CXXFLAGS+set}"
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ac_save_CXXFLAGS="$CXXFLAGS"
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CXXFLAGS=
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AC_PROG_CXX_G
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if test "$ac_test_CXXFLAGS" = set; then
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CXXFLAGS="$ac_save_CXXFLAGS"
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elif test $ac_cv_prog_cxx_g = yes; then
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CXXFLAGS="-g -O2"
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else
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CXXFLAGS="-O2"
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fi
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else
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GXX=
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test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
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fi
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rtems_cv_prog_gxx=$ac_cv_prog_gxx
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rtems_cv_prog_cxx_g=$ac_cv_prog_cxx_g
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rtems_cv_prog_cxx_works=$ac_cv_prog_cxx_works
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rtems_cv_prog_cxx_cross=$ac_cv_prog_cxx_cross
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CXX=$rtems_save_CXX
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CXXFLAGS=$rtems_save_CXXFLAGS
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dnl restore initial values
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unset ac_cv_prog_gxx
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unset ac_cv_prog_cc_g
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unset ac_cv_prog_cxx_works
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unset ac_cv_prog_cxx_cross
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])
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AC_DEFUN(RTEMS_PROG_CXX_FOR_TARGET,
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[
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RTEMS_PROG_CXX
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if test "$rtems_cv_prog_cc_cross" != "$rtems_cv_prog_cxx_cross"; then
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AC_MSG_ERROR([***]
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[Inconsistency in compiler configuration:]
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[Target C compiler and Target C++ compiler]
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[must both either be cross compilers or native compilers]
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[Hint: If building a posix bsp: LD_LIBRARY_PATH?] )
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fi
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])
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