From: Wolfgang Stöggl <c72578@yahoo.de>
Date: Tue, 4 Jun 2019 08:14:11 +0000 (+0200)
Subject: Fix --use-nan-for-all-missing-data
X-Git-Tag: v1.8.0~97
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=ee809fcf675aa0d80ed8c488c6e849776d67b214;p=thirdparty%2Frrdtool-1.x.git

Fix --use-nan-for-all-missing-data

- Fixes: https://github.com/oetiker/rrdtool-1.x/issues/918
---

diff --git a/src/rrd_graph.c b/src/rrd_graph.c
index 5a78f573..f5d2cdec 100644
--- a/src/rrd_graph.c
+++ b/src/rrd_graph.c
@@ -1072,7 +1072,7 @@ int data_fetch(
                 im->gdes[i].ds = ii;
             }
         }
-        if (im->gdes[i].ds == -1) {
+        if ((im->gdes[i].ds == -1) && !(im->extra_flags & ALLOW_MISSING_DS)) {
             rrd_set_error("No DS called '%s' in '%s'",
                           im->gdes[i].ds_nam, im->gdes[i].rrd);
             return -1;