b=15348

[fs/lustre-release.git] / lustre-iokit / sgpdd-survey / plot-sgpdd

diff --git a/lustre-iokit/sgpdd-survey/plot-sgpdd b/lustre-iokit/sgpdd-survey/plot-sgpdd
index f66862a..741428a 100755 (executable)
--- a/lustre-iokit/sgpdd-survey/plot-sgpdd
+++ b/lustre-iokit/sgpdd-survey/plot-sgpdd
@@ -31,6 +31,11 @@ sub usage()
 # check whether gnuplot exists?
 system ("which gnuplot > /dev/null") == 0 or die "gnuplot does not exist, please install it and try again.\n";
 
+# check whether gnuplot supports png
+$pngsupport = "ldd `which gnuplot` | grep -q libpng";
+system ("$pngsupport") == 0 or die "gnuplot installed does not support png.
+       Please install gnuplot to support png and try again.\n"; 
+
 my @GraphTitle;
 
 #Subroutine to write .scr file that further used by gnuplot to plot the graph.