https://gcc.gnu.org/g:1a0b276f69f535244cf8d0983db2ebbc537de536
commit r16-7486-g1a0b276f69f535244cf8d0983db2ebbc537de536 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]> 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 ff590fcdf4d9..de4d94faf14c 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 106acfa641b8..404cc93e9630 100644 --- a/libstdc++-v3/testsuite/17_intro/names.cc +++ b/libstdc++-v3/testsuite/17_intro/names.cc @@ -303,7 +303,7 @@ #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
