[Xquartz-dev] GLKit and Xquartz's GL support

[Jack Howarth]

     The following warning appears when compiling pymol 1.7.4.0 under
OS X 10.10....

layer1/Scene.cpp:9159:7: warning: 'gluPerspective' is deprecated:
first deprecated in OS X 10.9 - "Use GLKMatrix4MakePerspective"
[-Wdeprecated-declarations]
      gluPerspective(fov, aspRat, I->FrontSafe, I->BackSafe);
      ^
/System/Library/Frameworks/OpenGL.framework/Headers/glu.h:278:13:
note: 'gluPerspective' has been explicitly marked deprecated here
extern void gluPerspective (GLdouble fovy, GLdouble aspect, GLdouble
zNear, GLdouble zFar) OPENGL_DEPRECATED_MSG(10_0, 10_9, "Use
GLKMatrix4MakePerspective");
            ^

from https://www.opengl.org/discussion_boards/showthread.php/184541-gluPerspective-vs-GLKMatrix4MakePerspective-use-in-OSX-OpenGL,
it would appear that we want to use something like...

--- layer1/Scene.cpp.orig 2014-12-11 12:48:50.000000000 -0500
+++ layer1/Scene.cpp 2014-12-11 13:03:26.000000000 -0500
@@ -9156,7 +9156,8 @@
     }
     if(!SettingGetGlobal_b(G, cSetting_ortho)) {
       float fov = SettingGetGlobal_f(G, cSetting_field_of_view);
-      gluPerspective(fov, aspRat, I->FrontSafe, I->BackSafe);
+      // gluPerspective(fov, aspRat, I->FrontSafe, I->BackSafe);
+      glMultMatrix(GLKMatrix4MakePerspective(fov, aspRat,
I->FrontSafe, I->BackSafe).m);
     } else {
       height = fmax(R_SMALL4, -I->Pos[2]) * GetFovWidth(G) / 2.f;
       width = height * aspRat;

However I am concerned about how using GLKit will interact with the
X11 GL wrapper libraries. Have those been enhanced to interoperate
with GLKit? Thanks in advance for any information.
       Jack