OK, So I investigated this a bit further and found that the found in xcircuit.c is there to protect the long handle being stored into a pointertype that is typedef'ed off a u_int.
The code in xcircuit.h establishes the pointertype: 107 #if SIZEOF_VOID_P == SIZEOF_UNSIGNED_INT 108 #define Number(a) (void *)((u_int) a) 109 typedef u_int pointertype; 110 #elif SIZEOF_VOID_P == SIZEOF_UNSIGNED_LONG 111 #define Number(a) (void *)((u_long) a) 112 typedef u_long pointertype; 113 #elif SIZEOF_VOID_P == SIZEOF_UNSIGNED_LONG_LONG 114 #define Number(a) (void *)((u_long_long) a) 115 typedef u_long_long pointertype; 116 #else 117 ERROR: Cannot compile without knowing the size of a pointer. See xcircuit.h. 118 #endif The aforementioned code in xcircuit.c assumed that pointertype was typedef'ed from u_int. However, on my system SIZEOF_VOID_P is the same a SIZEOF_UNSIGNED_LONG. Therefore the cast down/up code is not needed. A solution is to put these same preprocessor directives around the code in xcircuit.c as well. https://github.com/mooredan/xcircuit-3.10/commit/1225d030e0d010fb17dda26e151081b5a3df4d89 _______________________________________________ Xcircuit-dev mailing list Xcircuit-dev@opencircuitdesign.com http://www.opencircuitdesign.com/mailman/listinfo/xcircuit-dev