a728e2fe35
uClibc development version adds support for POSIX spawn routines. However, unlike glibc these routines are in librt. This breaks gnulib autoconf detection. Teach gnulib autoconf to look for POSIX spawn in librt. Fixes: http://autobuild.buildroot.net/results/246/246b3778a1a646afd1c8b9c17b4579fb5a27120e/ Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
44 lines
1.3 KiB
Diff
44 lines
1.3 KiB
Diff
From 71cf16e435bf5db64abcf81a9dc6dc36ce37d58d Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?P=C3=A1draig=20Brady?= <P@draigBrady.com>
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Date: Tue, 14 Jan 2014 16:59:07 +0000
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Subject: [PATCH] spawn: fix link error on uclibc
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* m4/spawn_h.m4 (gl_HAVE_POSIX_SPAWN): use AC_SEARCH_LIBS,
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to incorporate -lrt if needed (on uclibc for example).
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* modules/posix_spawn: Reference the substituted LIB.
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Patch status: suggested by gnulib maintainer
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(http://article.gmane.org/gmane.comp.lib.gnulib.bugs/33610), not in upstream
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gnulib yet
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This issue should be fixed in coreutils version 2.23.
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Sign-off-by: Baruch Siach <baruch@tkos.co.il>
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---
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diff --git a/m4/spawn_h.m4 b/m4/spawn_h.m4
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index 87fe122..3eb835c 100644
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--- a/m4/spawn_h.m4
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+++ b/m4/spawn_h.m4
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@@ -64,7 +64,15 @@ AC_DEFUN([gl_HAVE_POSIX_SPAWN],
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dnl once only, before all statements that occur in other macros.
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AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
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- AC_CHECK_FUNCS_ONCE([posix_spawn])
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+ LIB_POSIX_SPAWN=
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+ AC_SUBST([LIB_POSIX_SPAWN])
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+ gl_saved_libs=$LIBS
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+ AC_SEARCH_LIBS([posix_spawn], [rt],
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+ [test "$ac_cv_search_posix_spawn" = "none required" ||
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+ LIB_POSIX_SPAWN=$ac_cv_search_posix_spawn])
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+ AC_CHECK_FUNCS([posix_spawn])
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+ LIBS=$gl_saved_libs
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+
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if test $ac_cv_func_posix_spawn != yes; then
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HAVE_POSIX_SPAWN=0
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fi
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--
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1.7.7.6
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