016-08-17 Stanislaw Halik <sthalik@misaki.pl>

        PR target/66488
        * config/i386/xm-mingw32.h (HOST_BITS_PER_PTR): Define if __x86_64__.

From-SVN: r239525

gcc/ChangeLog

+2016-08-17  Stanislaw Halik  <sthalik@misaki.pl>
+
+	PR target/66488
+	* config/i386/xm-mingw32.h (HOST_BITS_PER_PTR): Define if __x86_64__.
+
 2016-08-17  Richard Biener  <rguenther@suse.de>
 
 	* tree-ssa.c: Include tree-cfg.h and tree-dfa.h.

gcc/config/i386/xm-mingw32.h

@@ -38,3 +38,7 @@ along with GCC; see the file COPYING3.  If not see
 #define HOST_LONG_LONG_FORMAT "I64"
 #endif
 
+/* this is to prevent gcc-heap.c from assuming sizeof(long) == sizeof(intptr_t) */
+#ifdef __x86_64__
+#	define HOST_BITS_PER_PTR 64
+#endif