make platforms that use mutexes in stdio.h happy

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@40864 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/main/chanvars.c b/main/chanvars.c
index e21b3fc..7e617c1 100644 (file)
--- a/main/chanvars.c
+++ b/main/chanvars.c
@@ -27,6 +27,7 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>