https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99913
LIU Hao <lh_mouse at 126 dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |lh_mouse at 126 dot com
--- Comment #4 from LIU Hao <lh_mouse at 126 dot com> ---
Is there still such an error for you?
It looks to me that this linker command line did not contain `-pthread` unlike
the ones above. Maybe the configure script is worth looking at.
```
configure:16911: /R/winlibs32_stage/gcc-11-20210404/build_mingw/./gcc/xgcc
-B/R/winlibs32_stage/gcc-11-20210404/build_mingw/./gcc/
-L/R/winlibs32_stage/inst_gcc-11-20210404/share/gcc/i686-w64-mingw32/lib
-L/R/winlibs32_stage/inst_gcc-11-20210404/share/gcc/mingw/lib -isystem
/R/winlibs32_stage/inst_gcc-11-20210404/share/gcc/i686-w64-mingw32/include
-isystem /R/winlibs32_stage/inst_gcc-11-20210404/share/gcc/mingw/include
-B/R/winlibs32_stage/inst_gcc-11-20210404/share/gcc/i686-w64-mingw32/bin/
-B/R/winlibs32_stage/inst_gcc-11-20210404/share/gcc/i686-w64-mingw32/lib/
-isystem
/R/winlibs32_stage/inst_gcc-11-20210404/share/gcc/i686-w64-mingw32/include
-isystem
/R/winlibs32_stage/inst_gcc-11-20210404/share/gcc/i686-w64-mingw32/sys-include
--sysroot=/R/winlibs32_stage/gcc-11-20210404/build_mingw/mingw-w64 -o
conftest.exe -O0 -include confdefs.h -include
../../../libgomp/config/posix/omp-lock.h -s conftest.c -ldl >&5
D:\prog\winlibs32_stage\mingw32\i686-w64-mingw32\bin\ld.exe:
R:/winlibs32_stage/gcc-11-20210404/build_mingw/gcc/libgcc_eh.a(unwind-dw2.o):
in function `_gthread_once':
R:\winlibs32_stage\gcc-11-20210404\build_mingw\i686-w64-mingw32\libgcc/./gthr-default.h:700:
undefined reference to `pthread_once'
```
