https://gcc.gnu.org/g:84dbb22f32a525a0f0e0b7c02c56eec2fa6f39da
commit r16-5319-g84dbb22f32a525a0f0e0b7c02c56eec2fa6f39da Author: Jonathan Wakely <[email protected]> Date: Sun Nov 16 13:57:25 2025 +0000 libstdc++: Include <mutex> in syncbuf.cc [PR122698] For most configurations bits/std_mutex.h would already be included by <syncstream>, but not if configured with _GLIBCXX_USE_CXX11_ABI=0 as the default, because syncbuf is disabled in that case. libstdc++-v3/ChangeLog: PR libstdc++/122698 * src/c++20/syncbuf.cc (__syncbuf_get_mutex): Include <mutex>. Fix indentation of function body. Diff: --- libstdc++-v3/src/c++20/syncbuf.cc | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/libstdc++-v3/src/c++20/syncbuf.cc b/libstdc++-v3/src/c++20/syncbuf.cc index 150ba5e3ce4d..1fe380ec2830 100644 --- a/libstdc++-v3/src/c++20/syncbuf.cc +++ b/libstdc++-v3/src/c++20/syncbuf.cc @@ -23,6 +23,7 @@ // <http://www.gnu.org/licenses/>. #include <syncstream> +#include <mutex> #include <bits/functional_hash.h> #if _GLIBCXX_HAS_GTHREADS @@ -32,13 +33,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION mutex& __syncbuf_get_mutex(void* __t) - { - const unsigned char __mask = 0xf; - static mutex __m[__mask + 1]; +{ + const unsigned char __mask = 0xf; + static mutex __m[__mask + 1]; - auto __key = _Hash_impl::hash(__t) & __mask; - return __m[__key]; - } + auto __key = _Hash_impl::hash(__t) & __mask; + return __m[__key]; +} _GLIBCXX_END_NAMESPACE_VERSION }
