Index: src/mesa/drivers/dri/r200/r200_ioctl.c
===================================================================
RCS file: /cvs/mesa/Mesa/src/mesa/drivers/dri/r200/r200_ioctl.c,v
retrieving revision 1.15
diff -u -r1.15 r200_ioctl.c
--- src/mesa/drivers/dri/r200/r200_ioctl.c	4 Jul 2004 20:33:49 -0000	1.15
+++ src/mesa/drivers/dri/r200/r200_ioctl.c	12 Aug 2004 10:55:00 -0000
@@ -831,7 +831,7 @@
 {
    GET_CURRENT_CONTEXT(ctx);
    r200ContextPtr rmesa;
-   int region_offset;
+   ptrdiff_t region_offset;
    drm_radeon_mem_free_t memfree;
    int ret;
 
@@ -892,7 +892,7 @@
 GLboolean r200IsGartMemory( r200ContextPtr rmesa, const GLvoid *pointer,
 			   GLint size )
 {
-   int offset = (char *)pointer - (char *)rmesa->r200Screen->gartTextures.map;
+   ptrdiff_t offset = (char *)pointer - (char *)rmesa->r200Screen->gartTextures.map;
    int valid = (size >= 0 &&
 		offset >= 0 &&
 		offset + size < rmesa->r200Screen->gartTextures.size);
@@ -906,7 +906,7 @@
 
 GLuint r200GartOffsetFromVirtual( r200ContextPtr rmesa, const GLvoid *pointer )
 {
-   int offset = (char *)pointer - (char *)rmesa->r200Screen->gartTextures.map;
+   ptrdiff_t offset = (char *)pointer - (char *)rmesa->r200Screen->gartTextures.map;
 
    if (offset < 0 || offset > rmesa->r200Screen->gartTextures.size)
       return ~0;