https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119673
Bug ID: 119673
Summary: MinGW-w64 GCC with win32 thread model cannot compile
'std' module
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: c at cyano dot cn
Target Milestone: ---
Created attachment 61032
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61032&action=edit
Full error message
Failed with error:
```
error: 'bool __gnu_cxx::__is_single_threaded()' exposes TU-local entity 'int
__gthread_active_p()'
note: 'int __gthread_active_p()' declared with internal linkage
(and many similar errors on other gthread functions...)
```
GCC is configured with:
```
Using built-in specs.
COLLECT_GCC=Z:\tmp\test\mingw64-win32-15\mingw64-win32-15\bin\g++.exe
COLLECT_LTO_WRAPPER=Z:/tmp/test/mingw64-win32-15/mingw64-win32-15/bin/../lib/gcc/x86_64-w64-mingw32/15/lto-wrapper.exe
Target: x86_64-w64-mingw32
Configured with: ../configure --prefix= --libexecdir=/lib
--with-gcc-major-version-only --target=x86_64-w64-mingw32
--host=x86_64-w64-mingw32 --build=x86_64-alpine-linux-musl --disable-plugin
--disable-shared --enable-static --without-pic --disable-bootstrap
--enable-checking=release --enable-languages=c,c++ --disable-libmpx
--disable-multilib --enable-nls --enable-threads=win32 --disable-win32-registry
--without-libcc1 --with-libiconv CFLAGS=-Os CXXFLAGS=-Os LDFLAGS='-s --static'
CFLAGS_FOR_TARGET=-Os CXXFLAGS_FOR_TARGET=-Os 'LDFLAGS_FOR_TARGET=-s --static'
Thread model: win32
Supported LTO compression algorithms: zlib
gcc version 15.0.1 20250330 (experimental) (GCC)
```
The toolchain binary avialable here:
https://github.com/CyanoHao/mingw-lite/actions/runs/14321793190 (Artifact
"mingw64-win32-15", "mingw64-win32-15-20250330-r0.tar.zst" in the artifact zip
arcive)
