--- a/src/physfs.c	Sun Sep 06 01:04:17 2009 -0400
+++ b/src/physfs.c	Sun Sep 06 01:05:27 2009 -0400
@@ -43,7 +43,7 @@
 
 typedef struct __PHYSFS_ERRMSGTYPE__
 {
-    PHYSFS_uint64 tid;
+    void *tid;
     int errorAvailable;
     char errorString[80];
     struct __PHYSFS_ERRMSGTYPE__ *next;
@@ -268,7 +268,7 @@
 static ErrMsg *findErrorForCurrentThread(void)
 {
     ErrMsg *i;
-    PHYSFS_uint64 tid;
+    void *tid;
 
     if (errorLock != NULL)
         __PHYSFS_platformGrabMutex(errorLock);

--- a/src/physfs_internal.h	Sun Sep 06 01:04:17 2009 -0400
+++ b/src/physfs_internal.h	Sun Sep 06 01:05:27 2009 -0400
@@ -1307,12 +1307,12 @@
 char *__PHYSFS_platformGetUserDir(void);
 
 /*
- * Return a number that uniquely identifies the current thread.
- *  On a platform without threading, (1) will suffice. These numbers are
+ * Return a pointer that uniquely identifies the current thread.
+ *  On a platform without threading, (0x1) will suffice. These numbers are
  *  arbitrary; the only requirement is that no two threads have the same
- *  number.
+ *  pointer.
  */
-PHYSFS_uint64 __PHYSFS_platformGetThreadID(void);
+void *__PHYSFS_platformGetThreadID(void);
 
 /*
  * Return non-zero if filename (in platform-dependent notation) exists.

--- a/src/platform_beos.cpp	Sun Sep 06 01:04:17 2009 -0400
+++ b/src/platform_beos.cpp	Sun Sep 06 01:05:27 2009 -0400
@@ -194,9 +194,9 @@
 } /* __PHYSFS_platformCalcBaseDir */
 
 
-PHYSFS_uint64 __PHYSFS_platformGetThreadID(void)
+void *__PHYSFS_platformGetThreadID(void)
 {
-    return((PHYSFS_uint64) find_thread(NULL));
+    return((void *) find_thread(NULL));
 } /* __PHYSFS_platformGetThreadID */
 
 

--- a/src/platform_macosx.c	Sun Sep 06 01:04:17 2009 -0400
+++ b/src/platform_macosx.c	Sun Sep 06 01:05:27 2009 -0400
@@ -353,9 +353,9 @@
 } /* __PHYSFS_platformSetDefaultAllocator */
 
 
-PHYSFS_uint64 __PHYSFS_platformGetThreadID(void)
+void *__PHYSFS_platformGetThreadID(void)
 {
-    return( (PHYSFS_uint64) ((size_t) MPCurrentTaskID()) );
+    return( (void *) ((size_t) MPCurrentTaskID()) );
 } /* __PHYSFS_platformGetThreadID */
 
 

--- a/src/platform_os2.c	Sun Sep 06 01:04:17 2009 -0400
+++ b/src/platform_os2.c	Sun Sep 06 01:05:27 2009 -0400
@@ -658,7 +658,7 @@
 } /* __PHYSFS_platformGetLastModTime */
 
 
-PHYSFS_uint64 __PHYSFS_platformGetThreadID(void)
+void *__PHYSFS_platformGetThreadID(void)
 {
     PTIB ptib;
     PPIB ppib;
@@ -668,7 +668,7 @@
      *  default value (zero might as well do) if it does.
      */
     BAIL_IF_MACRO(os2err(DosGetInfoBlocks(&ptib, &ppib)) != NO_ERROR, 0, 0);
-    return((PHYSFS_uint64) ptib->tib_ordinal);
+    return((void *) ptib->tib_ordinal);
 } /* __PHYSFS_platformGetThreadID */
 
 

--- a/src/platform_pocketpc.c	Sun Sep 06 01:04:17 2009 -0400
+++ b/src/platform_pocketpc.c	Sun Sep 06 01:05:27 2009 -0400
@@ -161,9 +161,9 @@
 } /* __PHYSFS_platformGetUserDir */
 
 
-PHYSFS_uint64 __PHYSFS_platformGetThreadID(void)
+void *__PHYSFS_platformGetThreadID(void)
 {
-    return(1);  /* single threaded. */
+    return((void *)1);  /* single threaded. */  /* !!! FIXME: is this true? */
 } /* __PHYSFS_platformGetThreadID */
 
 

--- a/src/platform_unix.c	Sun Sep 06 01:04:17 2009 -0400
+++ b/src/platform_unix.c	Sun Sep 06 01:05:27 2009 -0400
@@ -347,7 +347,7 @@
 
 #if (defined PHYSFS_NO_PTHREADS_SUPPORT)
 
-PHYSFS_uint64 __PHYSFS_platformGetThreadID(void) { return(0x0001); }
+void *__PHYSFS_platformGetThreadID(void) { return((void *) 0x0001); }
 void *__PHYSFS_platformCreateMutex(void) { return((void *) 0x0001); }
 void __PHYSFS_platformDestroyMutex(void *mutex) {}
 int __PHYSFS_platformGrabMutex(void *mutex) { return(1); }
@@ -362,24 +362,10 @@
     PHYSFS_uint32 count;
 } PthreadMutex;
 
-/* Just in case; this is a panic value. */
-#if ((!defined SIZEOF_INT) || (SIZEOF_INT <= 0))
-#  define SIZEOF_INT 4
-#endif
 
-#if (SIZEOF_INT == 4)
-#  define PHTREAD_TO_UI64(thr) ( (PHYSFS_uint64) ((PHYSFS_uint32) (thr)) )
-#elif (SIZEOF_INT == 2)
-#  define PHTREAD_TO_UI64(thr) ( (PHYSFS_uint64) ((PHYSFS_uint16) (thr)) )
-#elif (SIZEOF_INT == 1)
-#  define PHTREAD_TO_UI64(thr) ( (PHYSFS_uint64) ((PHYSFS_uint8) (thr)) )
-#else
-#  define PHTREAD_TO_UI64(thr) ((PHYSFS_uint64) (thr))
-#endif
-
-PHYSFS_uint64 __PHYSFS_platformGetThreadID(void)
+void *__PHYSFS_platformGetThreadID(void)
 {
-    return(PHTREAD_TO_UI64(pthread_self()));
+    return( (void *) ((size_t) pthread_self()) );
 } /* __PHYSFS_platformGetThreadID */
 
 

--- a/src/platform_windows.c	Sun Sep 06 01:04:17 2009 -0400
+++ b/src/platform_windows.c	Sun Sep 06 01:05:27 2009 -0400
@@ -559,9 +559,9 @@
 } /* __PHYSFS_platformGetUserDir */
 
 
-PHYSFS_uint64 __PHYSFS_platformGetThreadID(void)
+void *__PHYSFS_platformGetThreadID(void)
 {
-    return((PHYSFS_uint64) GetCurrentThreadId());
+    return( (void *) ((size_t) GetCurrentThreadId()) );
 } /* __PHYSFS_platformGetThreadID */