$OpenBSD: patch-examples_OpenGLWindow_LoadShader_cpp,v 1.1 2018/04/10 20:09:07 jasper Exp $

Index: examples/OpenGLWindow/LoadShader.cpp
--- examples/OpenGLWindow/LoadShader.cpp.orig
+++ examples/OpenGLWindow/LoadShader.cpp
@@ -47,7 +47,7 @@ GLuint gltLoadShaderPair(const char *szVertexProg, con
         return 0;
 		glDeleteShader(hVertexShader);
 		glDeleteShader(hFragmentShader);
-		return (GLuint)NULL;
+		return (GLuint)0;
 	}
 
   assert(glGetError()==GL_NO_ERROR);
@@ -65,7 +65,7 @@ GLuint gltLoadShaderPair(const char *szVertexProg, con
         exit(EXIT_FAILURE);
 		glDeleteShader(hVertexShader);
 		glDeleteShader(hFragmentShader);
-		return (GLuint)NULL;
+		return (GLuint)0;
 	}
 
     assert(glGetError()==GL_NO_ERROR);
@@ -102,7 +102,7 @@ GLuint gltLoadShaderPair(const char *szVertexProg, con
 		printf("Warning/Error in GLSL shader:\n");
 		printf("%s\n",infoLog);
 		glDeleteProgram(hReturn);
-		return (GLuint)NULL;
+		return (GLuint)0;
 	}
 
 	return hReturn;
