--- loncom/build/help_graphics_converter.pl	2002/07/17 15:45:49	1.2
+++ loncom/build/help_graphics_converter.pl	2002/08/19 21:40:55	1.4
@@ -35,8 +35,17 @@ if (not (-d $dirprefix . "png/"))
 { die "Can't convert help graphics because the png directory is not ".
       "installed."; }
 
-mkdir $dirprefix . "gif/";
-mkdir $dirprefix . "eps/";
+mkdir $dirprefix . "gif/", 0755;
+mkdir $dirprefix . "eps/", 0755;
+
+my $convert = `which convert`;
+if ($convert eq '')
+{
+    open LOG, ">> WARNINGS";
+    print LOG "**** ERROR **** ImageMagick is not installed. You must install ImageMagick to use LON-CAPA. Please see your installation instructions.\n";
+    print "**** ERROR **** ImageMagick is not installed. You must install ImageMagick to use LON-CAPA. Please see your installation instructions.\n";
+    exit;
+}
 
 foreach my $file (glob($dirprefix . "png/*.png"))
 {