Win64: please check my changes if you ran across them ;) But should be fine since no additional crashes were reported!

source/blender/blenlib/intern/BLI_ghash.c

@@ -256,11 +256,7 @@ int BLI_ghashutil_ptrcmp(void *a, void *b) {
 }
 
 unsigned int BLI_ghashutil_inthash(void *ptr) {
-#if defined(_WIN64)
-	unsigned __int64 key = (unsigned __int64)ptr;
-#else
-	unsigned long key = (unsigned long)ptr;
-#endif
+	uintptr_t key = (uintptr_t)ptr;
 
 	key += ~(key << 16);
 	key ^=  (key >>  5);

source/blender/blenlib/intern/fileops.c

@@ -62,6 +62,8 @@
 #include "BKE_utildefines.h"
 #include <errno.h>
 
+#include "BLO_sys_types.h" // for intptr_t support
+
 /* implementations: */
 char *first_slash(char *string) {
 	char *ffslash, *fbslash;
@@ -72,7 +74,7 @@ char *first_slash(char *string) {
 	if (!ffslash) return fbslash;
 	else if (!fbslash) return ffslash;
 	
-	if ((long)ffslash < (long)fbslash) return ffslash;
+	if ((intptr_t)ffslash < (intptr_t)fbslash) return ffslash;
 	else return fbslash;
 }
 
@@ -85,7 +87,7 @@ char *BLI_last_slash(const char *string) {
 	if (!lfslash) return lbslash; 
 	else if (!lbslash) return lfslash;
 	
-	if ((long)lfslash < (long)lbslash) return lbslash;
+	if ((intptr_t)lfslash < (intptr_t)lbslash) return lbslash;
 	else return lfslash;
 }
 

source/blender/blenlib/intern/psfont.c

@@ -54,7 +54,7 @@ typedef struct chardesc {
     short llx, lly;		/* bounding box */
     short urx, ury;
     short *data;		/* char data */
-    long datalen;		
+    intptr_t datalen;		
 } chardesc;
 
 typedef struct objfnt {

source/blender/blenlib/intern/util.c

@@ -1970,7 +1970,7 @@ void BLI_timestr(double _time, char *str)
 
 int BLI_int_from_pointer(void *poin)
 {
-	long lval= (long)poin;
+	intptr_t lval= (intptr_t)poin;
 	
 	return (int)(lval>>3);
 }
@@ -1978,17 +1978,17 @@ int BLI_int_from_pointer(void *poin)
 void *BLI_pointer_from_int(int val)
 {
 	static int firsttime= 1;
-	static long basevalue= 0;
+	static intptr_t basevalue= 0;
 	
 	if(firsttime) {
 		void *poin= malloc(10000);
-		basevalue= (long)poin;
+		basevalue= (intptr_t)poin;
 		basevalue &= ~PMASK;
 		printf("base: %d pointer %p\n", basevalue, poin); /* debug */
 		firsttime= 0;
 		free(poin);
 	}
-	return (void *)(basevalue | (((long)val)<<3));
+	return (void *)(basevalue | (((intptr_t)val)<<3));
 }
 
 #else