Index: trunk/psconfig/pscheckperl
===================================================================
--- trunk/psconfig/pscheckperl	(revision 24550)
+++ trunk/psconfig/pscheckperl	(revision 24670)
@@ -56,4 +56,7 @@
 $perldir = `csh -f psconfig.csh --perldir $version`; chomp $perldir;
 $homedir = `pwd`; chomp $homedir;
+
+# Astro::FITS::CFITSIO requires this to be set correctly...
+$ENV{'CFITSIO'} = $prefix;
 
 print "psconfig version: $version\n";