From 2fced917a5aff2019701c5f4986659f79b31ab9e Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@gnu.kitenet.net>
Date: Wed, 14 Oct 2009 16:59:21 -0400
Subject: sparkline: show error if php does not run

---
 IkiWiki/Plugin/sparkline.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'IkiWiki/Plugin')

diff --git a/IkiWiki/Plugin/sparkline.pm b/IkiWiki/Plugin/sparkline.pm
index c1f016ffd..fb4849492 100644
--- a/IkiWiki/Plugin/sparkline.pm
+++ b/IkiWiki/Plugin/sparkline.pm
@@ -149,7 +149,7 @@ sub preprocess (@) {
 
 		waitpid $pid, 0;
 		$SIG{PIPE}="DEFAULT";
-		if ($sigpipe) {
+		if ($sigpipe || ! defined $png) {
 			error gettext("failed to run php");
 		}
 
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