Port Mesa to build on a P64 platform (e.g., Win64). P64 platforms

use 64-bit pointers and 32-bit longs.  So, operations like casting pointers
to unsigned long and back to pointer won't work.  glheader.h now
includes files to define uintptr_t, which should instead be used for
this sort of operation.  It is an integer type that is the same size
as a pointer.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c
index 02f2dbe69f..e4c3f6651d 100644
--- a/src/mesa/main/texstore.c
+++ b/src/mesa/main/texstore.c
@@ -2127,7 +2127,7 @@ _mesa_validate_pbo_compressed_teximage(GLcontext *ctx,
       return pixels;
    }
    if ((const GLubyte *) pixels + imageSize >
-       (const GLubyte *) packing->BufferObj->Size) {
+       (const GLubyte *)(uintptr_t) packing->BufferObj->Size) {
       /* out of bounds read! */
       _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(invalid PBO access");
       return NULL;