Index: branches/eam_branches/relphot.20210521/src/extra.c
===================================================================
--- branches/eam_branches/relphot.20210521/src/extra.c	(revision 41602)
+++ branches/eam_branches/relphot.20210521/src/extra.c	(revision 41603)
@@ -1,3 +1,4 @@
 # include "relphot.h"
+# define DISABLE_CORNER_GPC1 0
 
 int isMosaicChip (int photcode) {
@@ -14,5 +15,5 @@
 int whichGPC1filter (int photcode) {
 
-# if (1)
+# if (DISABLE_CORNER_GPC1)
   // disable the corner chips:
   if (((photcode >  10000) && (photcode <  10077)) || (photcode == 4100)) return PS1_g; // g-band 
@@ -37,5 +38,5 @@
 int isGPC1chip (int photcode) {
 
-# if (1)
+# if (DISABLE_CORNER_GPC1)
   if (((photcode >  10000) && (photcode <  10077)) || (photcode == 4100)) return TRUE; // g-band
   if (((photcode >  10100) && (photcode <  10177)) || (photcode == 4200)) return TRUE; // r-band