[cogl] build: don't inc egl headers for non EGL builds

[Robert Bragg <rbragg src gnome org>]

commit c2729e4ea8154ea2f8c9520104ccbe242c6fa361
Author: Robert Bragg <robert linux intel com>
Date:   Mon Nov 28 22:55:58 2011 +0000

    build: don't inc egl headers for non EGL builds
    
    For example when building on windows we don't want to require EGL
    headers when compiling cogl-renderer.c or cogl-texture-2d.c so we make
    sure not to include cogl-winsys-egl-private.h if we aren't supporting
    EGL.
    
    Reviewed-by: Neil Roberts <neil linux intel com>

 cogl/cogl-renderer.c   |    2 ++
 cogl/cogl-texture-2d.c |    2 ++
 2 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/cogl/cogl-renderer.c b/cogl/cogl-renderer.c
index b1a3e8a..a691bda 100644
--- a/cogl/cogl-renderer.c
+++ b/cogl/cogl-renderer.c
@@ -43,7 +43,9 @@
 #include "cogl-display-private.h"
 #include "cogl-winsys-private.h"
 #include "cogl-winsys-stub-private.h"
+#ifdef COGL_HAS_EGL_SUPPORT
 #include "cogl-winsys-egl-private.h"
+#endif
 #include "cogl-config-private.h"
 
 #if COGL_HAS_XLIB_SUPPORT
diff --git a/cogl/cogl-texture-2d.c b/cogl/cogl-texture-2d.c
index d83570d..84c500d 100644
--- a/cogl/cogl-texture-2d.c
+++ b/cogl/cogl-texture-2d.c
@@ -39,7 +39,9 @@
 #include "cogl-journal-private.h"
 #include "cogl-pipeline-opengl-private.h"
 #include "cogl-framebuffer-private.h"
+#ifdef COGL_HAS_EGL_SUPPORT
 #include "cogl-winsys-egl-private.h"
+#endif
 
 #include <string.h>
 #include <math.h>