Index: src/extras/libc.c
===================================================================
--- src/extras/libc.c	(revision 12474)
+++ src/extras/libc.c	(working copy)
@@ -29,6 +29,7 @@
#include <ctype.h>

#include <vlc/vlc.h>
+#include <vlc_common.h>

#undef iconv_t
#undef iconv_open
@@ -612,7 +613,13 @@
#if defined(HAVE_ICONV)
     return iconv( cd, inbuf, inbytesleft, outbuf, outbytesleft );
#else
-    int i_bytes = __MIN(*inbytesleft, *outbytesleft);
+    int i_bytes;
+
+	if (inbytesleft == NULL || outbytesleft == NULL) {
+		return 0;
+	}
+
+	i_bytes = __MIN(*inbytesleft, *outbytesleft);
     if( !inbuf || !outbuf || !i_bytes ) return (size_t)(-1);
     memcpy( *outbuf, *inbuf, i_bytes );
     inbuf += i_bytes;