$OpenBSD: patch-include_GL_freeglut_ext_h,v 1.3 2017/07/05 21:29:42 rsadowski Exp $

Index: include/GL/freeglut_ext.h
--- include/GL/freeglut_ext.h.orig
+++ include/GL/freeglut_ext.h
@@ -193,7 +193,7 @@ FGAPI void    FGAPIENTRY glutSolidTeaspoon( double siz
 /*
  * Extension functions, see fg_ext.c
  */
-typedef void (*GLUTproc)();
+typedef void (*GLUTproc)(void);
 FGAPI GLUTproc FGAPIENTRY glutGetProcAddress( const char *procName );
 
 /*
@@ -249,7 +249,7 @@ FGAPI void    FGAPIENTRY glutSetVertexAttribNormal(GLi
 FGAPI void    FGAPIENTRY glutSetVertexAttribTexCoord2(GLint attrib);
 
 /* Mobile platforms lifecycle */
-FGAPI void    FGAPIENTRY glutInitContextFunc(void (* callback)());
+FGAPI void    FGAPIENTRY glutInitContextFunc(void (* callback)(void));
 FGAPI void    FGAPIENTRY glutAppStatusFunc(void (* callback)(int));
 /* state flags that can be passed to callback set by glutAppStatusFunc */
 #define GLUT_APPSTATUS_PAUSE                0x0001
