Quiet an "uninitialized value in string" warning in PLplot Makefile.PL

Warning issued since $ENV{PLPLOT_INCDIR} not defined on all machines.
PDLPorters · Feb 4, 2015 · f5a1be8 · f5a1be8
1 parent c958a32
commit f5a1be8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Graphics/PLplot/Makefile.PL b/Graphics/PLplot/Makefile.PL
@@ -113,7 +113,7 @@ foreach my $incdir (
 		                  # Add new header paths here!!
 		    ) {
 
-  if (-e "$incdir/$incname") {
+  if (defined($incdir) && -e "$incdir/$incname") {
     $plplot_include_path = "-I$incdir";
     if ($incdir =~ m|/plplot$|) {
       my $inc2 = $incdir;