OpenColorIO: Build failing but package hasn't changed

[Richard Shaw <hobbes1069@xxxxxxxxx>]

I fixed a build problem for OpenColorIO for EPEL 7 a few weeks ago and was able to do mockbuilds. I just forced a Koschei rebuild to clear the failure but the build failed[1] for an unusual reason:

In file included from /builddir/build/BUILD/OpenColorIO-1.0.9/src/apps/ociodisplay/main.cpp:46:0:
/usr/include/GL/glext.h:12066:105: error: conflicting declaration 'typedef void (* PFNGLFRAGMENTLIGHTFVSGIXPROC)(GLenum, GLenum, const GLfloat*)'
 typedef void (APIENTRYP PFNGLFRAGMENTLIGHTFVSGIXPROC) (GLenum light, GLenum pname, const GLfloat *params);
                                                                                                         ^
In file included from /builddir/build/BUILD/OpenColorIO-1.0.9/src/apps/ociodisplay/main.cpp:44:0:
/usr/include/GL/glew.h:14376:28: error: 'PFNGLFRAGMENTLIGHTFVSGIXPROC' has a previous declaration as 'typedef void (* PFNGLFRAGMENTLIGHTFVSGIXPROC)(GLenum, GLenum, GLfloat*)'
 typedef void (GLAPIENTRY * PFNGLFRAGMENTLIGHTFVSGIXPROC) (GLenum light, GLenum pname, GLfloat* params);

The mesa-libGL-devel package has changed versions (glext.h) since the last successful build[2] but the glew-devel package has not (glew.h) and yet it also is causing an issue somehow.

Any pointers?

Thanks,

Richard

[1] https://kojipkgs.fedoraproject.org/work/tasks/2802/91612802/build.log

[2] https://kojipkgs.fedoraproject.org//packages/OpenColorIO/1.0.9/4.el7/data/logs/x86_64/build.log

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