From c358c64c1d33b24f2001079010d9460f6f29ac0a Mon Sep 17 00:00:00 2001
From: Peter Stephenson <pws@users.sourceforge.net>
Date: Tue, 12 Apr 2011 12:44:05 +0000
Subject: Valentin Ochs: 28989: define _POSIX_C_SOURCE when testing for
 sigset_t in configure (needed for musl).

---
 configure.ac | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 91e169ce5..d1c5f45fb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -992,7 +992,8 @@ dnl <sys/types.h> and <signal.h>.  Others might need
 dnl to be added.
 AC_CACHE_CHECK(for sigset_t, zsh_cv_type_sigset_t,
 [AC_TRY_COMPILE(
-[#include <sys/types.h>
+[#define _POSIX_C_SOURCE 200809L
+#include <sys/types.h>
 #include <signal.h>], [sigset_t tempsigset;],
   zsh_cv_type_sigset_t=yes, zsh_cv_type_sigset_t=no)])
 AH_TEMPLATE([sigset_t],
-- 
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