CMake support into expat-2.4.1 is broken.

Thu Jan 20 12:12:34 GMT 2022

Hello,
I tried to build the latest stable of OpenColorIO but I got an error
because the support for CMake into expat is broken.
I'm getting this message:
CMake Error at /usr/lib/cmake/expat-2.4.1/expat.cmake:74 (message):
 The imported target "expat::expat" references the file
 "/usr/lib/libexpat.so.1.8.1"
 but this file does not exist.
which is true, as you can see by inspecting the file
/usr/lib/cmake/expat-2.4.1/expat-noconfig.cmake.
As you can see by looking here:
https://github.com/libexpat/libexpat/tree/master/expat/cmake/autotools
this is a bug of Expath because "expat-noconfig__linux.cmake.in" is
installed rather than expat-noconfig__windows.cmake.in.
Here:
https://github.com/libexpat/libexpat/pull/546
I made a PR to the master of Expat for fixing this issue.
I was wondering if a newer packaged could be published with a newer
stable version of Expat (when it will be released with this fix) or by
updating the cygport file by including the same patch.
Thank you very much.
Sincerely.