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Git Commits -> Revision 1f6b738

Revision 1f6b738 by Ankit Meel (master)
October 9, 2020, 14:11 (GMT)
CMake/macOS: Remove _LIBPATH, avoid link_directories.

After tests were bundled in a single executable and cycles and libmv
created their own tests, the warnings on macOS have gone over 800.
The reason is setting `*_LIBRARIES` to names of the libraries
and later using `link_directories` to link them properly.

https://cmake.org/cmake/help/latest/command/link_directories.html

> Note This command is rarely necessary and should be avoided where
> there are other choices. Prefer to pass full absolute paths to
> libraries where possible, since this ensures the correct library
> will always be linked. The find_library() command provides the
> full path, which can generally be used directly in calls to
> target_link_libraries().

Warnings like the following popup for every target/executable,
for every library it links to.
```
ld: warning: directory not found for option
'-L/Users/me/blender-build/blender/../lib/darwin/jpeg/lib/Debug'
```

The patch completes a step towards removing `link_directories` as
mentioned in TODO at several places.
The patch uses absolute paths to link libraries and removes
all `*_LIBPATH`s except `PYTHON_LIBPATH` from
`platform_apple.cmake` file. (The corner case where it's used seems
like dead code. Python is no longer shipped with that file structure.)

Also, unused code for LLVM-3.4 has been removed.
Also, guards to avoid searching libraries in system directories have
been added.

`APPLE` platform now no longer needs `setup_libdirs`,
`cycles_link_directories`, and `link_directories`.
The number of warnings now is less than 100, most of them being
deprecation ones in dependencies.

This patch depended on {rBb746179d0add}, {rB2fdbe4d05011},
{rB402a4cadba49} and {rBd7f482f88ecb}.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D8855

Commit Details:

Full Hash: 1f6b7387ad0177c1dec9bb83b7c7586a454691db
Parent Commit: 83e9148
Lines Changed: +121, -169

5 Modified Paths:

/build_files/cmake/macros.cmake (+2, -2) (Diff)
/build_files/cmake/platform/platform_apple.cmake (+104, -163) (Diff)
/intern/cycles/cmake/macros.cmake (+7, -2) (Diff)
/source/blender/datatoc/CMakeLists.txt (+4, -1) (Diff)
/source/creator/CMakeLists.txt (+4, -1) (Diff)
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