From 7d63fbdaea7fb293ad2f0d04e87139b383b90705 Mon Sep 17 00:00:00 2001
From: William Metcalf <william.metcalf@gmail.com>
Date: Thu, 6 May 2010 10:19:33 -0500
Subject: [PATCH] small CentOS 4 workarounds

---
 configure.in  | 15 +++++++++++++++
 src/threads.h |  4 +++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/configure.in b/configure.in
index 8750ff738b..5c5d91f662 100644
--- a/configure.in
+++ b/configure.in
@@ -232,6 +232,21 @@ AC_INIT(configure.in)
     exit 1
     fi
 
+   # To prevent duping the lib link we reset LIBS after this check. Setting action-if-found to NULL doesn't seem to work
+   # see: http://blog.flameeyes.eu/2008/04/29/i-consider-ac_check_lib-harmful
+   PCRE=""
+   TMPLIBS="${LIBS}"
+   AC_CHECK_LIB(pcre, pcre_dfa_exec,, PCRE="no")
+   if test "$PCRE" = "no"; then
+   echo
+   echo "   ERROR!  pcre library was found but version was < 6.0"
+   echo "   please upgrade to a newer version of pcre which you can get from"
+   echo "   www.pcre.org."
+   echo
+   exit 1
+   fi
+   LIBS="${TMPLIBS}"
+
    AC_TRY_COMPILE([ #include <pcre.h> ],
    [ int eo = 0; eo |= PCRE_EXTRA_MATCH_LIMIT_RECURSION; ],
    [ pcre_match_limit_recursion_available=yes ], [:]
diff --git a/src/threads.h b/src/threads.h
index be9d00e9b5..6968cf472b 100644
--- a/src/threads.h
+++ b/src/threads.h
@@ -347,7 +347,9 @@
  * OS specific macro's for setting the thread name. "top" can display
  * this name.
  */
-#ifdef OS_FREEBSD /* FreeBSD */
+#ifndef PR_SET_NAME /*PR_SET_NAME */
+#define SCSetThreadName(n)
+#elif OS_FREEBSD /* FreeBSD */
 /** \todo Add implementation for FreeBSD */
 #define SCSetThreadName(n)
 #elif OS_WIN32 /* Windows */