From f5926d4c2c12affd9b7e140e38777deae83751e2 Mon Sep 17 00:00:00 2001
From: Rainer Gerhards <rgerhards@adiscon.com>
Date: Wed, 27 Nov 2013 09:45:52 +0100
Subject: build system: check if jemalloc is present (if requested)

---
 configure.ac | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 7417c571..8ffa44db 100644
--- a/configure.ac
+++ b/configure.ac
@@ -391,8 +391,15 @@ AC_ARG_ENABLE(jemalloc,
 )
 AM_CONDITIONAL(ENABLE_JEMALLOC, test x$enable_jemalloc = xyes)
 if test "$enable_jemalloc" = "yes"; then
-        AC_DEFINE(HAVE_JEMALLOC, 1, [jemalloc support is integrated.])
-	RT_LIBS="$RT_LIBS -ljemalloc"
+  AC_CHECK_LIB(
+    [jemalloc],
+    [malloc_stats_print],
+    [RT_LIBS="$RT_LIBS -ljemalloc"
+     AC_DEFINE(HAVE_JEMALLOC, 1, [jemalloc support is integrated.])
+    ],
+    [AC_MSG_FAILURE([jemalloc library is missing])],
+    []
+    )
 fi
 
 
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