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libstdc++: Don't test for __unused on Glibc targets

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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 <jwakely@redhat.com>
This commit is contained in:
Xi Ruoyao
2026-02-12 18:46:05 +00:00
committed by Jonathan Wakely
parent db072f75e5
commit 1a0b276f69
2 changed files with 2 additions and 2 deletions
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2
libstdc++-v3/testsuite/17_intro/badnames.cc
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@@ -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

2
libstdc++-v3/testsuite/17_intro/names.cc
View File

@@ -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