Index: trunk/ippScripts/scripts/diff_skycell.pl
===================================================================
--- trunk/ippScripts/scripts/diff_skycell.pl	(revision 22433)
+++ trunk/ippScripts/scripts/diff_skycell.pl	(revision 23186)
@@ -21,6 +21,4 @@
 use Data::Dumper;
 use PS::IPP::Config 1.01 qw( :standard );
-
-my $ipprc = PS::IPP::Config->new(); # IPP configuration
 
 use Getopt::Long qw( GetOptions :config auto_help auto_version gnu_getopt );
@@ -62,12 +60,10 @@
     and defined $outroot;
 
-# Unhandled exceptions should be passed on to my_die so they get pushed into the database
-$SIG{__DIE__} = sub { die @_ if $^S;
-                      my_die( $_[0], $diff_id, $skycell_id, $PS_EXIT_UNKNOWN_ERROR ); };
+my $ipprc = PS::IPP::Config->new() or my_die( "Unable to set up", $diff_id, $skycell_id, $PS_EXIT_CONFIG_ERROR ); # IPP configuration
 
 # XXX camera is not known here; cannot use filerules...
 # my $logDest = $ipprc->filename("LOG.EXP", $outroot);
 my $logDest = "$outroot.log";
-$ipprc->redirect_output($logDest) if $redirect;
+$ipprc->redirect_output($logDest) or my_die( "Unable to redirect output", $diff_id, $skycell_id, $PS_EXIT_SYS_ERROR ) if $redirect;
 
 my $source_id = $ipprc->source_id($dbname, $PS_TABLE_ID_DIFF);