X-Git-Url: https://git.reactos.org/?p=reactos.git;a=blobdiff_plain;f=reactos%2Finclude%2Fddk%2Fd3dhal.h;h=d4ecc2ca4e9d82f63f60f2f1bd38de041db36fca;hp=7cbe1e99dc53fc769e2e147bbe126f042533d237;hb=cbdf28bb6ace5e3faec494c5743371d7288f191c;hpb=ffdab4c2f5964308f1d85003eab530371b17b143

diff --git a/reactos/include/ddk/d3dhal.h b/reactos/include/ddk/d3dhal.h
index 7cbe1e99dc5..d4ecc2ca4e9 100644
--- a/reactos/include/ddk/d3dhal.h
+++ b/reactos/include/ddk/d3dhal.h
@@ -22,6 +22,15 @@
 #ifndef _D3DHAL_H_
 #define _D3DHAL_H_
 
+/* Helper macro to enable gcc's extension.  */
+#ifndef __GNU_EXTENSION
+#ifdef __GNUC__
+#define __GNU_EXTENSION __extension__
+#else
+#define __GNU_EXTENSION
+#endif
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -787,7 +796,7 @@ typedef struct _DD_GETD3DQUERYCOUNTDATA
 typedef struct _DD_GETD3DQUERYDATA
 {
     DD_GETDRIVERINFO2DATA gdi2;
-    union
+    __GNU_EXTENSION union
     {
         DWORD dwQueryIndex;
         D3DQUERYTYPE QueryType;