Index: trunk/psastro/src/psastroAstromGuess.c
===================================================================
--- trunk/psastro/src/psastroAstromGuess.c	(revision 16537)
+++ trunk/psastro/src/psastroAstromGuess.c	(revision 17933)
@@ -163,5 +163,5 @@
 */
 
-bool psastroAstromGuessSetChip (pmFPA *fpa, pmChip *chip, pmFPAview *view, double pixelScale, bool bilevelAstrometry) {
+bool psastroAstromGuessSetChip (pmFPA *fpa, pmChip *chip, const pmFPAview *view, double pixelScale, bool bilevelAstrometry) {
 
     // read WCS data from the corresponding header