gallium: declare pipe_format enum to silence warnings

diff --git a/src/gallium/include/pipe/p_debug.h b/src/gallium/include/pipe/p_debug.h
index f872479..ed47c0e 100644 (file)
--- a/src/gallium/include/pipe/p_debug.h
+++ b/src/gallium/include/pipe/p_debug.h
@@ -60,6 +60,8 @@ extern "C" {
 #endif
 
 
+enum pipe_format;
+
 void _debug_vprintf(const char *format, va_list ap);