BUFFER_NONE is -1 so no reason for GLint.
---
src/mesa/main/mtypes.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index af9115e..a8e2b39 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -3484,7 +3484,7 @@ struct gl_framebuffer
/** Computed from ColorDraw/ReadBuffer above */
GLuint _NumColorDrawBuffers;
GLint _ColorDrawBufferIndexes[MAX_DRAW_BUFFERS]; /**< BUFFER_x or -1 */
- GLint _ColorReadBufferIndex; /* -1 = None */
+ gl_buffer_index _ColorReadBufferIndex;
struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS];
struct gl_renderbuffer *_ColorReadBuffer;
--
1.9.1
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