[PyOpenGL-Devel] [ pyopengl-Bugs-686490 ] Build failures on cygwin

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Bugs item #686490, was opened at 2003-02-14 05:21
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105988&aid=686490&group_id=5988

Category: build
Group: v2.0.1
Status: Open
Resolution: None
Priority: 6
Submitted By: Mike C. Fletcher (mcfletch)
Assigned to: Nobody/Anonymous (nobody)
Summary: Build failures on cygwin

Initial Comment:
The cygwin build appears to be broken (not sure when
the last time it was run was).  There are also lots of
warnings generated, mostly "warning: function
declaration isn't a prototype".  Those should get
fixed.  Note that I had to add /bin to the cygwin.cfg
lib-path, and /usr/include to the include path to get
anything at all to compile.

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Comment By: Philip (Flip) Kromer (mrflip)
Date: 2003-03-16 23:50

Message:
Logged In: YES 
user_id=457326

After much hair-pulling I got PyOpenGL-2.0.1.02 to build
under cygwin.  I had to make the following changes:
 1) Change all occurences of PyExc_WindowsError back to
PyExc_OSError in the files
      interface/WGL/util.inc
      src/interface/WGL.ARB.buffer_region.0100.inc 
      src/interface/WGL.ARB.extensions_string.0100.inc
      src/interface/WGL.EXT.extensions_string.0100.inc
      src/interface/WGL.EXT.swap_control.0103.in
      src/interface/WGL.__init___.0400.in
 2) I got a ton of errors in the file
src/interface/GLU.__init___.0103.inc 
    The first is that the function gluUnProject4 has an
issue with its parameter list.
    The second theme is that for some reason a host of
functions are not found at link time:
        gluCheckExtension
        __gluUnProject4
        gluBuild3DMipmaps
        gluBuild3DMipmapsb
        gluBuild3DMipmapsub
        gluBuild3DMipmapss
        gluBuild3DMipmapsus
        gluBuild3DMipmapsi
        gluBuild3DMipmapsui
        gluBuild3DMipmapsf
        gluBuild1DMipmapLevels
        gluBuild1DMipmapLevelsb
        gluBuild1DMipmapLevelsub
        gluBuild1DMipmapLevelss
        gluBuild1DMipmapLevelsus
        gluBuild1DMipmapLevelsi
        gluBuild1DMipmapLevelsui
        gluBuild1DMipmapLevelsf
        gluBuild2DMipmapLevels
        gluBuild2DMipmapLevelsb
        gluBuild2DMipmapLevelsub
        gluBuild2DMipmapLevelss
        gluBuild2DMipmapLevelsus
        gluBuild2DMipmapLevelsi
        gluBuild2DMipmapLevelsui
        gluBuild2DMipmapLevelsf
        gluBuild3DMipmapLevels
        gluBuild3DMipmapLevelsb
        gluBuild3DMipmapLevelsub
        gluBuild3DMipmapLevelss
        gluBuild3DMipmapLevelsus
        gluBuild3DMipmapLevelsi
        gluBuild3DMipmapLevelsui
        gluBuild3DMipmapLevelsf
        gluNurbsCallbackData
        __gluNurbsCallbackDataEXT
    My solution was, unsubtly, to remove these functions
from the file; each is mentioned in three places:
        a) the _xxx function, 
        b) the _wrap_xxx function,
        c) the appropriate line in the SwigMethods list.
        d) the shadow wrapper file
src/shadow/GLU.__init__.0103.py

This bone-saw and bloodletting approach seems to have left
me a useable build; I am able to render simple scenes and
run the demos.

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