From 6c1b50cfab1529e866e40c037ce1be7027423af0 Mon Sep 17 00:00:00 2001
From: Mikko Koppanen <mkoppanen@php.net>
Date: Wed, 26 Oct 2011 11:26:00 +0200
Subject: Added compile-time test for SOCK_CLOEXEC

Signed-off-by: Mikko Koppanen <mkoppanen@php.net>
---
 acinclude.m4 | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'acinclude.m4')

diff --git a/acinclude.m4 b/acinclude.m4
index 7e96921..537be18 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -581,6 +581,28 @@ AC_DEFUN([LIBZMQ_CHECK_LANG_VISIBILITY], [{
           [AC_MSG_RESULT(yes) ; $1], [AC_MSG_RESULT(no) ; $2])
 }])
 
+dnl ################################################################################
+dnl # LIBZMQ_CHECK_SOCK_CLOEXEC([action-if-found], [action-if-not-found])          #
+dnl # Check if SOCK_CLOEXEC is supported                                           #
+dnl ################################################################################
+AC_DEFUN([LIBZMQ_CHECK_SOCK_CLOEXEC], [{
+    AC_MSG_CHECKING(whether SOCK_CLOEXEC is supported)
+    AC_TRY_RUN([/* SOCK_CLOEXEC test */
+#include <sys/types.h>
+#include <sys/socket.h>
+
+int main (int argc, char *argv [])
+{
+    int s = socket (PF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
+    return (s == -1);
+}
+    ],
+    [AC_MSG_RESULT(yes) ; libzmq_cv_sock_cloexec="yes" ; $1],
+    [AC_MSG_RESULT(no)  ; libzmq_cv_sock_cloexec="no"  ; $2],
+    [AC_MSG_RESULT(not during cross-compile) ; libzmq_cv_sock_cloexec="no"]
+    )
+}])
+
 dnl ################################################################################
 dnl # LIBZMQ_CHECK_POLLER_KQUEUE([action-if-found], [action-if-not-found])         #
 dnl # Checks kqueue polling system                                                 #
-- 
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