Re: [PATCH v3] Factor out thread model detection with new `GCC_AC_THREAD_MODEL` macro

On Wed, 16 Jul 2025, John Ericson wrote: > config/ChangeLog: > > * gthr.m4: Create new GCC_AC_THREAD_MODEL macro > > libatomic/ChangeLog: > > * configure.ac: Use GCC_AC_THREAD_MODEL instead of hand-rolled > > libgcc/ChangeLog: > > * configure.ac: Use GCC_AC_THREAD_MODEL inst

[PATCH v3] Factor out thread model detection with new `GCC_AC_THREAD_MODEL` macro

This macro deduplicates the $CC -v 2>&1 | sed -n 's/^Thread model: //p' check that was occurring in various runtime libs. Additionally, as a bit of an Easter egg, this also allows overriding what the compiler would return by setting the `gcc_cv_target_thread_file` cache variable first. I adm