[gtk/wip/gtk322.win.egl] GDK: Fix include in gdkgl.c

[LRN <ruslanizhb src gnome org>]

commit ec1811fe39af93deaaf74a57de0c570f808e9743
Author: Руслан Ижбулатов <lrn1986 gmail com>
Date:   Tue May 15 13:23:58 2018 +0000

    GDK: Fix include in gdkgl.c
    
    Need to include win32/gdkwin32.h instead of just gdkwin32.h,
    since the win32 subdirectory is not normally on the include path
    for generic GDK backend code.

 gdk/gdkgl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gdk/gdkgl.c b/gdk/gdkgl.c
index f0dd7ea97a..933e204439 100644
--- a/gdk/gdkgl.c
+++ b/gdk/gdkgl.c
@@ -23,7 +23,7 @@
 #include "gdkinternals.h"
 
 #ifdef GDK_WINDOWING_WIN32
-# include "gdkwin32.h"
+# include "win32/gdkwin32.h"
 #endif
 
 #include <epoxy/gl.h>