Index: trunk/Ohana/src/libfits/include/gfitsio.h
===================================================================
--- trunk/Ohana/src/libfits/include/gfitsio.h	(revision 37807)
+++ trunk/Ohana/src/libfits/include/gfitsio.h	(revision 38062)
@@ -147,4 +147,5 @@
 
 int     gfits_init_matrix              PROTO((Matrix *matrix));
+off_t   gfits_npix_matrix              PROTO((Matrix *matrix));
 void   	gfits_add_matrix_value         PROTO((Matrix *matrix, off_t x, off_t y, double value)); 
 int    	gfits_convert_format           PROTO((Header *header, Matrix *matrix, int outBitpix, double outScale, double outZero, int inBlank, int outUnsign));