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From: "baker at usgs dot gov" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/54630] [4.8 Regression] GCC 4.8 --enable-languages=c build fails: Undefined symbols: ___cxa_guard_acquire and ___cxa_guard_release Date: Tue, 25 Sep 2012 01:53:00 -0000 [thread overview] Message-ID: <bug-54630-4-Ng6ZAoXjqw@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-54630-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54630 --- Comment #9 from Larry Baker <baker at usgs dot gov> 2012-09-25 01:53:01 UTC --- The build on Linux i386 works fine without --with-host-libstdcxx. I believe g++ is used for linking. I tried using a native Linux i386 GCC 4.7.1 to build a cross GCC 4.8.0, with --with-host-libstdcxx='-static-libgcc -static-libstdc++'. That fails with the same error I encountered before: undefined references to __cxa_guard_acquire and __cxa_guard_release in the link step. I am sure this is because gcc was used and libstdc++ was not searched because I did not include -lstdc++ in --with-host-libstdcxx. Lastly, I hacked gcc/Makefile.in to always use g++ for the linker: # Libraries to use on the host. HOST_LIBS = @HOST_LIBS@ # The name of the compiler to use. COMPILER = $(CXX) COMPILER_FLAGS = $(CXXFLAGS) # If HOST_LIBS is set, then the user is controlling the libraries to # link against. In that case, link with $(CC) so that the -lstdc++ # library is not introduced. If HOST_LIBS is not set, link with # $(CXX) to pick up -lstdc++. #---> ifeq ($(HOST_LIBS),) LINKER = $(CXX) LINKER_FLAGS = $(CXXFLAGS) #---> else #---> LINKER = $(CC) #---> LINKER_FLAGS = $(CFLAGS) #---> endif # ( cd cross-gcc-4.8.0-experimental ; PATH=/usr/local/gcc-4.7.1/bin:${PWD}/../freescale-coldfire-2011.09/bin:${PATH/.:/} CC_FOR_BUILD=gcc CC=gcc CXX=g++ AR=ar RANLIB=ranlib AS_FOR_TARGET=m68k-uclinux-as LD_FOR_TARGET=m68k-uclinux-ld AR_FOR_TARGET=m68k-uclinux-ar RANLIB_FOR_TARGET=m68k-uclinux-ranlib NM_FOR_TARGET=m68k-uclinux-nm OBJDUMP_FOR_TARGET=m68k-uclinux-objdump STRIP_FOR_TARGET=m68k-uclinux-strip ${PWD}/../gcc-4.8.0-experimental/configure --disable-decimal-float --disable-fixed-point --disable-libffi --disable-libgomp --disable-libmudflap --disable-libquadmath --disable-libssp --disable-libstdcxx-pch --disable-nls --disable-shared --enable-languages=c,c++ --enable-lto --enable-poison-system-directories --enable-threads --prefix=/usr/local/gcc-4.8.0 --program-prefix=m68k-uclinux- --target=m68k-uclinux --with-arch=cf --with-gnu-as --with-gnu-ld --with-build-time-tools=${PWD}/../freescale-coldfire-2011.09/m68k-uclinux/bin --with-host-libstdcxx='-static-libgcc -static-libstdc++' --with-sysroot=${PWD}/../freescale-coldfire-2011.09/m68k-uclinux/libc ) # ( cd cross-gcc-4.8.0-experimental ; PATH=/usr/local/gcc-4.7.1/bin:${PWD}/../freescale-coldfire-2011.09/bin:${PATH/.:/} make -j4 ) # ( cd cross-gcc-4.8.0-experimental ; PATH=/usr/local/gcc-4.7.1/bin:${PWD}/../freescale-coldfire-2011.09/bin:${PATH/.:/} make install ) This works fine. This is as close as I could get to supplying LDFLAGS_FOR_BUILD='-static-libgcc -static-libstdc++' to the link step without causing LINKER=gcc.
next prev parent reply other threads:[~2012-09-25 1:53 UTC|newest] Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-09-19 21:15 [Bug libstdc++/54630] New: " baker at usgs dot gov 2012-09-20 11:37 ` [Bug middle-end/54630] [4.8 Regression] " rguenth at gcc dot gnu.org 2012-09-20 20:28 ` baker at usgs dot gov 2012-09-20 20:30 ` baker at usgs dot gov 2012-09-21 18:58 ` baker at usgs dot gov 2012-09-21 19:17 ` baker at usgs dot gov 2012-09-21 20:35 ` baker at usgs dot gov 2012-09-22 1:14 ` baker at usgs dot gov 2012-09-22 1:45 ` baker at usgs dot gov 2012-09-25 1:53 ` baker at usgs dot gov [this message] 2012-11-19 3:02 ` jason at gcc dot gnu.org 2012-11-19 13:44 ` jakub at gcc dot gnu.org 2012-11-20 9:24 ` jakub at gcc dot gnu.org 2012-11-20 19:58 ` baker at usgs dot gov 2012-11-20 20:20 ` jakub at gcc dot gnu.org 2012-11-20 22:25 ` baker at usgs dot gov 2012-11-21 11:20 ` redi at gcc dot gnu.org 2012-11-21 21:38 ` baker at usgs dot gov 2012-11-22 0:51 ` ian at airs dot com 2012-11-26 19:44 ` baker at usgs dot gov
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