From a2400cbfc51e381c1dd33eb9e1d3c82feb54d911 Mon Sep 17 00:00:00 2001
From: Kurt Zeilenga <kurt@openldap.org>
Date: Fri, 6 Jan 2006 05:38:57 +0000
Subject: [PATCH] Add configure support for REPLACE_SCHED_YIELD

---
 configure            | 17 ++++++++++++++++-
 configure.in         | 12 ++++++++++++
 include/portable.hin |  3 +++
 3 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 3d831943b8..e62191610b 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in OpenLDAP: pkg/ldap/configure.in,v 1.610 2005/12/16 15:52:59 ando Exp .
+# From configure.in OpenLDAP: pkg/ldap/configure.in,v 1.612 2006/01/03 22:11:59 kurt Exp .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.59.
 #
@@ -24741,6 +24741,21 @@ echo "${ECHO_T}$ol_cv_pthread_create_works" >&6
 				{ { echo "$as_me:$LINENO: error: pthread_create is not usable, check environment settings" >&5
 echo "$as_me: error: pthread_create is not usable, check environment settings" >&2;}
    { (exit 1); exit 1; }; }
+			fi
+
+			ol_replace_sched_yeild=no
+			case "$target" in
+			*-*-linux*)
+				ol_replace_sched_yeild=yes
+			;;
+			esac
+
+			if test $ol_replace_sched_yeild = yes ; then
+
+cat >>confdefs.h <<\_ACEOF
+#define REPLACE_SCHED_YEILD 1
+_ACEOF
+
 			fi
 
 						if test $ol_with_yielding_select = auto ; then
diff --git a/configure.in b/configure.in
index ff17fdaca3..5929bd5392 100644
--- a/configure.in
+++ b/configure.in
@@ -1587,6 +1587,18 @@ dnl			[ol_cv_pthread_lpthread_lexc])
 				AC_MSG_ERROR([pthread_create is not usable, check environment settings])
 			fi
 
+			ol_replace_sched_yeild=no
+			case "$target" in
+			*-*-linux*) 
+				ol_replace_sched_yeild=yes
+			;;
+			esac
+
+			if test $ol_replace_sched_yeild = yes ; then
+				AC_DEFINE([REPLACE_SCHED_YEILD],1,
+					[define to replace sched_yeild(2)])
+			fi
+
 			dnl Check if select causes an yield
 			if test $ol_with_yielding_select = auto ; then
 				AC_CACHE_CHECK([if select yields when using pthreads],
diff --git a/include/portable.hin b/include/portable.hin
index 86f84670e4..5b80589614 100644
--- a/include/portable.hin
+++ b/include/portable.hin
@@ -915,6 +915,9 @@
 /* Define to the version of this package. */
 #undef PACKAGE_VERSION
 
+/* define to replace sched_yeild(2) */
+#undef REPLACE_SCHED_YEILD
+
 /* Define as the return type of signal handlers (`int' or `void'). */
 #undef RETSIGTYPE
 
-- 
2.39.5