diff --git a/cf/roken-frag.m4 b/cf/roken-frag.m4
index 2f48a8b9d..e101abb65 100644
--- a/cf/roken-frag.m4
+++ b/cf/roken-frag.m4
@@ -309,6 +309,7 @@ AC_BROKEN([					\
 	initgroups				\
 	innetgr					\
 	iruserok				\
+	localtime_r				\
 	lstat					\
 	memmove					\
 	mkstemp					\
diff --git a/lib/roken/localtime_r.c b/lib/roken/localtime_r.c
new file mode 100644
index 000000000..aff92ef6a
--- /dev/null
+++ b/lib/roken/localtime_r.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2000 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+RCSID("$Id$");
+#endif
+
+#include <time.h>
+
+#ifndef HAVE_LOCALTIME_R
+
+struct tm *
+localtime_r(const time_t *timer, struct tm *result)
+{
+    struct tm *tm;
+    
+    tm = localtime((time_t *)timer);
+    if (tm == NULL)
+	return NULL;
+    *result = *tm;
+    return result;
+}
+
+#endif
diff --git a/lib/roken/roken.h.in b/lib/roken/roken.h.in
index 85f93fe62..2fcfbb45e 100644
--- a/lib/roken/roken.h.in
+++ b/lib/roken/roken.h.in
@@ -634,4 +634,9 @@ const char *getprogname(void);
 void set_progname(char *argv0);
 const char *get_progname(void);
 
+#ifndef HAVE_LOCALTIME_R
+struct tm *
+localtime_r(const time_t *timer, struct tm *result);
+#endif
+
 ROKEN_CPP_END