From: Tobias Oetiker <tobi@oetiker.ch>
Date: Wed, 22 Apr 2015 11:39:54 +0000 (+0200)
Subject: fix for #611 ... try to unlink before rename ...
X-Git-Tag: v1.5.1~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cd5cc07eab4ab3abec29bd92213ebb3cca1ce75c;p=thirdparty%2Frrdtool-1.x.git

fix for #611 ... try to unlink before rename ...
---

diff --git a/src/rrd_create.c b/src/rrd_create.c
index 8bc57244..66480a26 100644
--- a/src/rrd_create.c
+++ b/src/rrd_create.c
@@ -1391,7 +1391,11 @@ int write_rrd(const char *outfilename, rrd_t *out) {
 		rrdc_forget(outfilename);
 		rrd_clear_error();
 	    }
-
+	    
+#ifdef WIN32
+/* in windows, renaming to an existing file is verboten */
+            unlink(outfilename);
+#endif 
 	    if (rename(tmpfilename, outfilename) != 0) {
 		rrd_set_error("Cannot rename temporary file to final file!");
 		goto done;