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32682621b2Closes: https://bugs.gentoo.org/900296 Signed-off-by: Eli Schwartz <eschwartz93@gmail.com> Signed-off-by: Sam James <sam@gentoo.org>
30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
From 8e4fdc1c2794e861cd026864607fa6b04c5237cb Mon Sep 17 00:00:00 2001
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From: Eli Schwartz <eschwartz93@gmail.com>
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Date: Tue, 21 May 2024 16:10:45 -0400
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Subject: [PATCH] fix incompatible check for libc compat
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It relied on implicit function declarations, which are banned starting
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in c99. Result: the check always failed.
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See: https://wiki.gentoo.org/wiki/Modern_C_porting#How_do_I_reproduce_these_bugs.3F
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Bug: https://bugs.gentoo.org/900296
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Signed-off-by: Eli Schwartz <eschwartz93@gmail.com>
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---
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m4/check-libc-compat.m4 | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/m4/check-libc-compat.m4 b/m4/check-libc-compat.m4
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index a806cbe..3bb859a 100644
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--- a/m4/check-libc-compat.m4
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+++ b/m4/check-libc-compat.m4
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@@ -1,6 +1,6 @@
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AC_DEFUN([CHECK_PROGNAME], [
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AC_CACHE_CHECK([if libc defines __progname], ac_cv_libc_defines___progname, [
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- AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
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+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>]],
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[[ extern char *__progname; printf("%s", __progname); ]])],
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[ ac_cv_libc_defines___progname="yes" ],
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[ ac_cv_libc_defines___progname="no"
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--
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2.44.1
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