Make the use of DevIL optional

[libs/gl.git] / source / pixelformat.h

diff --git a/source/pixelformat.h b/source/pixelformat.h
index 6579700d421e8329279a2c35147c4e4c7283bb4a..6980ec8a959513b047d6372375d743824481e4ed 100644 (file)
--- a/source/pixelformat.h
+++ b/source/pixelformat.h
@@ -8,6 +8,7 @@ Distributed under the LGPL
 #ifndef MSP_GL_PIXELFORMAT_H_
 #define MSP_GL_PIXELFORMAT_H_
 
+#include <istream>
 #include "gl.h"
 
 namespace Msp {
@@ -30,6 +31,8 @@ enum PixelFormat
        LUMINANCE_ALPHA = GL_LUMINANCE_ALPHA
 };
 
+std::istream &operator>>(std::istream &, PixelFormat &);
+
 } // namespace GL
 } // namespace Msp