nicolas17 · December 28, 2015 12:59
diff --git a/preproc.cpp b/preproc.cpp
 #include "preproc.h"

 #ifndef GL_KHR_debug
 int code() {
    return 42;
 }
 #endif
diff --git a/preproc.h b/preproc.h
 // prevent preproc2 from doing anything
 #define PREPROC2_H
 #include "preproc2.h"
diff --git a/preproc2.h b/preproc2.h
 #ifndef PREPROC2_H
 #define GL_KHR_debug 1
 #endif
	// prevent preproc2 from doing anything
	#define PREPROC2_H
	#include "preproc2.h"