[Bug libstdc++/97485] std::call_once crashes at runtime on glibc if not linked to libpthread: terminate called after throwing an instance of 'std::system_error': what(): Unknown error -1

[slyfox at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97485

Sergei Trofimovich <slyfox at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
               Host|                            |x86_64-pc-linux-gnu

--- Comment #1 from Sergei Trofimovich <slyfox at gcc dot gnu.org> ---
$ LANG=C gcc-11.0.0 -v
Using built-in specs.
COLLECT_GCC=/usr/bin/gcc-11.0.0
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/11.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-11.0.0_pre9999/work/gcc-11.0.0_pre9999/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/11.0.0
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/11.0.0/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/11.0.0
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/11.0.0/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/11.0.0/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/11.0.0/include/g++-v11
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/11.0.0/python
--enable-languages=c,c++,go,jit,fortran --enable-obsolete --enable-secureplt
--disable-werror --with-system-zlib --enable-nls --without-included-gettext
--enable-checking=release --with-bugurl=https://bugs.gentoo.org/
--with-pkgversion='Gentoo 11.0.0_pre9999 p4, commit
6b55fa29adf4d643e61388bf01a4509b0b041d17' --disable-esp --enable-libstdcxx-time
--enable-host-shared --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu --enable-multilib
--with-multilib-list=m32,m64 --disable-fixed-point --enable-targets=all
--enable-libgomp --disable-libssp --disable-libada --disable-systemtap
--enable-valgrind-annotations --enable-vtable-verify --without-zstd
--enable-lto --with-isl --disable-isl-version-check --enable-default-pie
--enable-default-ssp
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 11.0.0 20201015 (experimental) (Gentoo 11.0.0_pre9999 p4, commit
6b55fa29adf4d643e61388bf01a4509b0b041d17)