Index: trunk/Ohana/src/libfits/include/gfitsio.h
===================================================================
--- trunk/Ohana/src/libfits/include/gfitsio.h	(revision 13039)
+++ trunk/Ohana/src/libfits/include/gfitsio.h	(revision 15007)
@@ -12,4 +12,8 @@
 
 # ifdef sid
+# define BYTE_SWAP
+# endif
+
+# ifdef darwin_x86
 # define BYTE_SWAP
 # endif