From: Xi Ruoyao Date: Thu, 12 Feb 2026 18:46:05 +0000 (+0000) Subject: libstdc++: Don't test for __unused on Glibc targets X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a0b276f69f535244cf8d0983db2ebbc537de536;p=thirdparty%2Fgcc.git 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 --- diff --git a/libstdc++-v3/testsuite/17_intro/badnames.cc b/libstdc++-v3/testsuite/17_intro/badnames.cc index ff590fcdf4d..de4d94faf14 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 106acfa641b..404cc93e963 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() #include -#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