From 6de4bcfcd5b47bec5a8acbdd5a4514ea06c8ea90 Mon Sep 17 00:00:00 2001
From: Oliver Kiddle <opk@zsh.org>
Date: Mon, 13 Dec 2021 20:44:59 +0100
Subject: 49634, reported by Claes Nästén: revert 28989
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Defining _POSIX_C_SOURCE caused issues on Solaris 10 but doesn't seem
to be needed for musl anymore
---
 configure.ac | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 1af5a2854..8bba78c56 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1135,8 +1135,7 @@ dnl Check for sigset_t.  Currently I'm looking in
 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_COMPILE_IFELSE([AC_LANG_PROGRAM([[#define _POSIX_C_SOURCE 200809L
-#include <sys/types.h>
+[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#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],
 [Define to `unsigned int' if <sys/types.h> or <signal.h> doesn't define])
-- 
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