Bug 660716 – media-libs/opencolorio-1.1.0-r1 - .../work/opencolorio-1.1.0/src/pyglue/PyAllocationTransform.cpp:67:27: error: cast between incompatible function types from ‘PyObject* (*)(PyObject*)’ {aka ‘_object* (*)(_object*)’} to ‘PyCFunction’ {aka ‘_object* (*)(_ob

• Status: RESOLVED DUPLICATE of bug 666696
• Product: Gentoo Linux

[Description Petr Cerny [:hrosik] 2018-07-08 15:34:11 UTC]

Created attachment 538820 [details]
build log, emerge -pqv, emerge --info

Python bindings in OpenColorIO fail to build with GCC8, thus making the package unmergeable with the `python` keyword. A workaround might be adding `-Wno-error=cast-function-type` to compiler flags (for GCC8).

Likely similar issues:
https://github.com/pybind/pybind11/issues/1395
https://github.com/swig/swig/issues/1259

GCC bug (RESOLVED INVALID):
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84531

[Comment 1 Dennis Schridde 2018-07-20 06:11:25 UTC]

Please adjust:

Summary: media-libs/opencolorio-1.1.0-r1[python] - src/pyglue/PyAllocationTransform.cpp:67:27: error: cast between incompatible function types from ‘PyObject* (*)(PyObject*)’ {aka ‘_object* (*)(_object*)’} to ‘PyCFunction’ {aka ‘_object* (*)(_object*, _object*)’}

Blocks: bug #654766

Maintainers will likely want the build.log and emerge --info output to be directly accessible in separate files, i.e. not in a tarball.

[Comment 2 Dennis Schridde 2018-07-20 06:24:25 UTC]

See-Also: https://github.com/imageworks/OpenColorIO/pull/518
See-Also: https://github.com/imageworks/OpenColorIO/pull/518/commits/65f1ce0f2a6822930d2ee70f73f97ef454cabfcc

URL: https://github.com/imageworks/OpenColorIO/pull/518/commits/65f1ce0f2a6822930d2ee70f73f97ef454cabfcc

The patch in $URL fixes the issue for me.

[Comment 3 Jeroen Roovers (RETIRED) 2020-09-06 22:54:38 UTC]

*** This bug has been marked as a duplicate of bug 666696 ***