[Bug middle-end/54630] [4.8 Regression] GCC 4.8 --enable-languages=c build fails: Undefined symbols: ___cxa_guard_acquire and ___cxa_guard_release

["baker at usgs dot gov" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54630

--- Comment #2 from Larry Baker <baker at usgs dot gov> 2012-09-20 20:28:08 UTC ---
This bug also occurs when --enable-languages=c,c++.  I am building a cross
compiler for ColdFire uClinux, TARGET=m68k-uclinux.  On Mac OS X
HOST=BUILD=x86_64-apple-darwin10.8.0, there are no errors.  On Linux i386
HOST=BUILD=i686-pc-linux-gnu, I get the undefined references to
__cxa_guard_acquire and __cxa_guard_release.

The bug is due to the link step for cc1, lto1 (maybe more) using gcc; it should
be using g++ (see below).  I don't know which Makefile(s) to fix.  It also
looks like the command emitted depends on the HOST or BUILD platform.

CentOS Linux has such an old gcc, it does not recognize -static-libstdc++

# cat /etc/redhat-release
CentOS release 6.3 (Final)

# gcc -v
Using built-in specs.
Target: i686-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla
--enable-bootstrap --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-gnu-unique-object
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk
--disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
--enable-libgcj-multifile --enable-java-maintainer-mode
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib
--with-ppl --with-cloog --with-tune=generic --with-arch=i686
--build=i686-redhat-linux
Thread model: posix
gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) 

>From the build directory

# pwd
/tmp/freescale-coldfile-xgcc/cross-gcc-4.8.0-experimental/gcc

This is the (first) make command that fails (I did a make -j4, so the link of
lto1 also failed)

# gcc   -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -fno-exceptions -fno-rtti
-W -Wall -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -pedantic
-Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -fno-common 
-DHAVE_CONFIG_H  -o cc1 c/c-lang.o c-family/stub-objc.o attribs.o c/c-errors.o
c/c-decl.o c/c-typeck.o c/c-convert.o c/c-aux-info.o c/c-objc-common.o
c/c-parser.o c-family/c-common.o c-family/c-cppbuiltin.o c-family/c-dump.o
c-family/c-format.o c-family/c-gimplify.o c-family/c-lex.o c-family/c-omp.o
c-family/c-opts.o c-family/c-pch.o c-family/c-ppoutput.o c-family/c-pragma.o
c-family/c-pretty-print.o c-family/c-semantics.o c-family/c-ada-spec.o
tree-mudflap.o default-c.o \
>   cc1-checksum.o libbackend.a main.o tree-browser.o libcommon-target.a libcommon.a ../libcpp/libcpp.a ../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a   ../libiberty/libiberty.a ../libdecnumber/libdecnumber.a -static-libgcc -static-libstdc++ -lm  -lmpc -lmpfr -lgmp -rdynamic -ldl -static-libgcc -static-libstdc++ -lm -L../zlib -lz
gcc: unrecognized option '-static-libstdc++'
gcc: unrecognized option '-static-libstdc++'
libbackend.a(tree-ssa-coalesce.o): In function `coalesce_ssa_name()':
/tmp/freescale-coldfile-xgcc/cross-gcc-4.8.0-experimental/../gcc-4.8.0-experimental/gcc/tree-ssa-coalesce.c:1294:
undefined reference to `__cxa_guard_acquire'
/tmp/freescale-coldfile-xgcc/cross-gcc-4.8.0-experimental/../gcc-4.8.0-experimental/gcc/tree-ssa-coalesce.c:1294:
undefined reference to `__cxa_guard_release'
collect2: ld returned 1 exit status

Using g++ instead of gcc cures the problem

# g++   -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -fno-exceptions -fno-rtti
-W -Wall -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -pedantic
-Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -fno-common 
-DHAVE_CONFIG_H  -o cc1 c/c-lang.o c-family/stub-objc.o attribs.o c/c-errors.o
c/c-decl.o c/c-typeck.o c/c-convert.o c/c-aux-info.o c/c-objc-common.o
c/c-parser.o c-family/c-common.o c-family/c-cppbuiltin.o c-family/c-dump.o
c-family/c-format.o c-family/c-gimplify.o c-family/c-lex.o c-family/c-omp.o
c-family/c-opts.o c-family/c-pch.o c-family/c-ppoutput.o c-family/c-pragma.o
c-family/c-pretty-print.o c-family/c-semantics.o c-family/c-ada-spec.o
tree-mudflap.o default-c.o   cc1-checksum.o libbackend.a main.o tree-browser.o
libcommon-target.a libcommon.a ../libcpp/libcpp.a
../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a  
../libiberty/libiberty.a ../libdecnumber/libdecnumber.a -static-libgcc
-static-libstdc++ -lm  -lmpc -lmpfr -lgmp -rdynamic -ldl -static-libgcc
-static-libstdc++ -lm -L../zlib -lz
g++: unrecognized option '-static-libstdc++'
g++: unrecognized option '-static-libstdc++'