https://gcc.gnu.org/g:0d7fe8a45df5435d91a9cd6e2c7a6010d3fed35c
commit r14-12620-g0d7fe8a45df5435d91a9cd6e2c7a6010d3fed35c Author: Xi Ruoyao <[email protected]> Date: Thu Feb 12 18:46:05 2026 +0000 libstdc++: Don't test for __unused on Glibc targets x86_64 glibc has started to use it since the 2.43 release, but is expected to fix it before the 2.44 release. Link: https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=b9579342c68b#patch67 libstdc++-v3/ChangeLog: * testsuite/17_intro/badnames.cc (__unused): Do not define. * testsuite/17_intro/names.cc [glibc == 2.43] (__unused): Undef. Co-authored-by: Jonathan Wakely <[email protected]> (cherry picked from commit 1a0b276f69f535244cf8d0983db2ebbc537de536) Diff: --- libstdc++-v3/testsuite/17_intro/badnames.cc | 2 +- libstdc++-v3/testsuite/17_intro/names.cc | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/libstdc++-v3/testsuite/17_intro/badnames.cc b/libstdc++-v3/testsuite/17_intro/badnames.cc index ec76d8e74c0b..df2e8d8ff461 100644 --- a/libstdc++-v3/testsuite/17_intro/badnames.cc +++ b/libstdc++-v3/testsuite/17_intro/badnames.cc @@ -67,7 +67,7 @@ // BSD adds: #define __used __used is a BADNAME -#define __unused __unused is a BADNAME + // __unused (glibc uses this so can't test here) // __inline (glibc uses this so can't test here) // _Complex (glibc uses this so can't test here) #define __istype __istype is a BADNAME diff --git a/libstdc++-v3/testsuite/17_intro/names.cc b/libstdc++-v3/testsuite/17_intro/names.cc index 5b4ad97c724f..b6b833c6255c 100644 --- a/libstdc++-v3/testsuite/17_intro/names.cc +++ b/libstdc++-v3/testsuite/17_intro/names.cc @@ -291,7 +291,7 @@ #if defined (__linux__) || defined (__gnu_hurd__) #if __has_include(<features.h>) #include <features.h> -#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 19 +#if __GLIBC__ == 2 && (__GLIBC_MINOR__ < 19 || __GLIBC_MINOR__ == 43) // Glibc defines this prior to 2.19 #undef __unused #endif
