Index: trunk/Ohana/src/libfits/include/gfitsio.h
===================================================================
--- trunk/Ohana/src/libfits/include/gfitsio.h	(revision 35756)
+++ trunk/Ohana/src/libfits/include/gfitsio.h	(revision 37039)
@@ -27,6 +27,8 @@
 # define FT_RECORD_SIZE        2880  /* FITS block size */
 
+# define FT_BZERO_INT8 -1.0*0x80
 # define FT_BZERO_INT16 1.0*0x8000	  
 # define FT_BZERO_INT32 1.0*0x80000000
+# define FT_BZERO_INT64 1.0*0x8000000000000000
 
 /* this structure defines the buffer which contains a header