BugZilla #601: Fixing makedepend choking on floating point exception

because CHAR_BIT is defined to __CHAR_BIT__ which is a compiler
    intrinsic define. BugZilla #605: Fixing build on IA64 which is broken
    due to the inclusion of the kernel header asm/page.h. Kernel headers
    however don't work with
-ansi. The inclusion of asm/page.h can however savely be removed as it
    there are plenty of other ways to determine the page size.

hw/xfree86/fbdevhw/fbdevhw.c

@@ -14,7 +14,12 @@
 #include "fbdevhw.h"
 #include "fbpriv.h"
 
-#include "asm/page.h"	/* #define for PAGE_* */
+#if 0
+/* kernel header doesn't work with -ansi */
+# include "asm/page.h"	/* #define for PAGE_* */
+#else
+# define PAGE_MASK               (~(getpagesize() - 1))
+#endif
 
 #include "globals.h"
 #define DPMS_SERVER
@@ -22,6 +27,8 @@
 
 #define DEBUG 0
 
+#define PAGE_MASK               (~(getpagesize() - 1))
+
 #if DEBUG
 # define TRACE_ENTER(str)	ErrorF("fbdevHW: " str " %d\n",pScrn->scrnIndex)
 #else