cget with cmake v3.14.0

[jonathonl]

Has cget been tested with cmake v3.14.0? All of my cget installs fail with this version of cmake, but not with earlier versions like v3.5.1 and v3.8.1. The problem is that the cget/include directory is not being set as an include directory for the project being built.

[jonathonl]

To clarify, this happens when the project being built depends on another project that was installed by cget via a requirements.txt file.

[jonathonl]

I believe this is actually a bug in cmake, so I created an issue with them as well and provided a test case.

https://gitlab.kitware.com/cmake/cmake/issues/19079

[jonathonl]

The CMake maintainers warn against using include_directories() in toolchain files. They suggest using CMAKE_{C,CXX}_STANDARD_INCLUDE_DIRECTORIES instead.

[pfultz2]

Thanks for the info. I'll update the toolchain. Although for older cmake version it will still need to use include_directories() since this variable was introduced in 3.6.