[MacPorts] #62203: mesa @19.0.8: build fails on < 10.7 with glext.h:303:15: error: typedef redefinition with different types

[MacPorts]

#62203: mesa @19.0.8: build fails on < 10.7 with glext.h:303:15: error: typedef
redefinition with different types
---------------------+-------------------------
  Reporter:  kencu   |      Owner:  jeremyhu
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:  snowleopard
      Port:  mesa    |
---------------------+-------------------------
Description changed by kencu:

Old description:

> There is a longstanding issue going back to 2005 with types in mesa, I
> read. Jeremy has been involved in this issue for 15 years. There are some
> workarounds in mesa for OSX.
>
> mesa @17.x built on 10.6 and other older systems without any trouble, and
> still does. mesa @19.x is failing due to this:
> {{{
> In file included from apple_glx_drawable.c:37:
> In file included from ./apple_glx_context.h:37:
> In file included from
> /System/Library/Frameworks/OpenGL.framework/Headers/CGLContext.h:9:
> In file included from
> /System/Library/Frameworks/OpenGL.framework/Headers/gliDispatch.h:9:
> /System/Library/Frameworks/OpenGL.framework/Headers/glext.h:303:15:
> error: typedef redefinition with different types ('void *' vs 'unsigned
> long')
> typedef void *GLhandleARB;
>               ^
> ../../../include/GL/glext.h:4094:23: note: previous definition is here
> typedef unsigned long GLhandleARB;
>                       ^
> 1 error generated.
> make[4]: *** [apple_glx_drawable.lo] Error 1
> In file included from apple_glx_context.c:52:
> In file included from ./apple_glx_context.h:37:
> In file included from
> /System/Library/Frameworks/OpenGL.framework/Headers/CGLContext.h:9:
> In file included from
> /System/Library/Frameworks/OpenGL.framework/Headers/gliDispatch.h:9:
> /System/Library/Frameworks/OpenGL.framework/Headers/glext.h:303:15:
> error: typedef redefinition with different types ('void *' vs 'unsigned
> long')
> typedef void *GLhandleARB;
>               ^
> ../../../include/GL/glext.h:4094:23: note: previous definition is here
> typedef unsigned long GLhandleARB;
>                       ^
> }}}
>
> It is not obvious to me, after several hours of poking around in the guts
> of the GL headers, comparing 10.6 (where it fails) to 10.7 (where it
> succeeds) etc what the issue is, exactly.

New description:

 There is a longstanding issue going back some years with types in mesa, I
 read. Jeremy has been involved in this issue for a long time. There are
 some workarounds in mesa for OSX.

 mesa @17.x built on 10.6 and other older systems without any trouble, and
 still does. mesa @19.x is failing due to this:
 {{{
 In file included from apple_glx_drawable.c:37:
 In file included from ./apple_glx_context.h:37:
 In file included from
 /System/Library/Frameworks/OpenGL.framework/Headers/CGLContext.h:9:
 In file included from
 /System/Library/Frameworks/OpenGL.framework/Headers/gliDispatch.h:9:
 /System/Library/Frameworks/OpenGL.framework/Headers/glext.h:303:15: error:
 typedef redefinition with different types ('void *' vs 'unsigned long')
 typedef void *GLhandleARB;
               ^
 ../../../include/GL/glext.h:4094:23: note: previous definition is here
 typedef unsigned long GLhandleARB;
                       ^
 1 error generated.
 make[4]: *** [apple_glx_drawable.lo] Error 1
 In file included from apple_glx_context.c:52:
 In file included from ./apple_glx_context.h:37:
 In file included from
 /System/Library/Frameworks/OpenGL.framework/Headers/CGLContext.h:9:
 In file included from
 /System/Library/Frameworks/OpenGL.framework/Headers/gliDispatch.h:9:
 /System/Library/Frameworks/OpenGL.framework/Headers/glext.h:303:15: error:
 typedef redefinition with different types ('void *' vs 'unsigned long')
 typedef void *GLhandleARB;
               ^
 ../../../include/GL/glext.h:4094:23: note: previous definition is here
 typedef unsigned long GLhandleARB;
                       ^
 }}}

 It is not obvious to me, after several hours of poking around in the guts
 of the GL headers, comparing 10.6 (where it fails) to 10.7 (where it
 succeeds) etc what the issue is, exactly.

--

-- 
Ticket URL: <https://trac.macports.org/ticket/62203#comment:14>
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