apientry.patch

diff --git a/src/debuglogger.cpp b/src/debuglogger.cpp
index 4301bdd..768f05e 100644
--- a/src/debuglogger.cpp
+++ b/src/debuglogger.cpp
@@ -25,6 +25,10 @@
 #include <glew.h>
 #include <iostream>
 
+#ifndef APIENTRY
+#define APIENTRY
+#endif
+
 struct DebugLoggerPrivate
 {
 	std::ostream *stream;
@@ -53,7 +57,7 @@ struct DebugLoggerPrivate
 	}
 };
 
-static void amdDebugFunc(GLuint id,
+static void APIENTRY amdDebugFunc(GLuint id,
                          GLenum category,
 	                     GLenum severity,
 	                     GLsizei length,
@@ -71,7 +75,7 @@ static void amdDebugFunc(GLuint id,
 	p->writeLine(message);
 }
 
-static void arbDebugFunc(GLenum source,
+static void APIENTRY arbDebugFunc(GLenum source,
                          GLenum type,
                          GLuint id,
                          GLenum severity,