https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100238
Bug ID: 100238
Summary: [11/12] Link failure in debug libstdc++ on MinGW due
to atomicitiy.cc
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: markus.boeck02 at gmail dot com
Target Milestone: ---
Building a shared libstdc++ with --enable-libstdcxx-debug for MinGW currently
fails to link on both trunk and the upcoming GCC 11 branch.
The precise error as shown in the terminal is:
/mnt/c/GCC-Build/NewestLinux/bin/x86_64-w64-mingw32-ld:
../../src/debug/c++98/.libs/libc++98convenience.a(atomicity.o): in function
`__gnu_cxx::__exchange_and_add(int volatile*, int)':
/mnt/c/GCC-Build-Array/gcc/build-target-x86_64/x86_64-w64-mingw32/libstdc++-v3/src/debug/c++98/atomicity.cc:36:
multiple definition of `__gnu_cxx::__exchange_and_add(int volatile*, int)';
../../libsupc++/.libs/libsupc++convenience.a(atomicity.o):C:/GCC-Build-Array/gcc/build-target-x86_64/x86_64-w64-mingw32/libstdc++-v3/libsupc++/atomicity.cc:36:
first defined here
/mnt/c/GCC-Build/NewestLinux/bin/x86_64-w64-mingw32-ld:
../../src/debug/c++98/.libs/libc++98convenience.a(atomicity.o): in function
`__gnu_cxx::__atomic_add(int volatile*, int)':
/mnt/c/GCC-Build-Array/gcc/build-target-x86_64/x86_64-w64-mingw32/libstdc++-v3/src/debug/c++98/atomicity.cc:41:
multiple definition of `__gnu_cxx::__atomic_add(int volatile*, int)';
../../libsupc++/.libs/libsupc++convenience.a(atomicity.o):C:/GCC-Build-Array/gcc/build-target-x86_64/x86_64-w64-mingw32/libstdc++-v3/libsupc++/atomicity.cc:41:
first defined here
Configure option used was:
../configure --target=x86_64-w64-mingw32 --host=x86_64-w64-mingw32
--disable-bootstrap --enable-libstdcxx-debug --with-tune=znver1
--prefix=/mnt/c/GCC --with-sysroot=/mnt/c/GCC-Build/NewestLinux
--with-build-sysroot=/mnt/c/GCC-Build/NewestLinux --disable-libstdcxx-pch
--disable-multilib --enable-libgomp --with-cross-host
--with-libiconv-prefix=/mnt/c/GCC-Build/NewestLinux/Libraries
--disable-libstdcxx-verbose --enable-languages=c,c++,fortran,lto,objc,obj-c++,d
--disable-nls --disable-win32-registry --enable-shared --with-gnu-as
--with-gnu-ld --enable-threads=posix --program-suffix=-11
--enable-version-specific-runtime-libs --with-gcc-major-version-only
--enable-__cxa_atexit --enable-plugin --program-prefix=
--enable-checking=release
Last tested on revision 886b6c1e8af502b69e3f318b9830b73b88215878 of the master
branch
