From f8740ea1ec93838d0218d6569b0af07cb784e64c Mon Sep 17 00:00:00 2001
From: Pierre Pronchery <khorben@defora.org>
Date: Sat, 9 May 2015 13:56:00 +0200
Subject: [PATCH] Avoid a crash on Linux systems

Use vsnprintf() (with n=0) instead of vsprintf() in dry-run mode.
---
 src/makefile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/makefile.c b/src/makefile.c
index fd8235e..01e28a5 100644
--- a/src/makefile.c
+++ b/src/makefile.c
@@ -2650,7 +2650,7 @@ static int _makefile_print(FILE * fp, char const * format, ...)
 
 	va_start(ap, format);
 	if(fp == NULL)
-		ret = vsprintf(NULL, format, ap);
+		ret = vsnprintf(NULL, 0, format, ap);
 	else
 		ret = vfprintf(fp, format, ap);
 	va_end(ap);