From 1f6b7387ad0177c1dec9bb83b7c7586a454691db Mon Sep 17 00:00:00 2001 From: Ankit Meel Date: Thu, 8 Oct 2020 19:31:40 +0530 Subject: 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 --- build_files/cmake/macros.cmake | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'build_files/cmake/macros.cmake') diff --git a/build_files/cmake/macros.cmake b/build_files/cmake/macros.cmake index cb4f1608216..a3f3feeaaa2 100644 --- a/build_files/cmake/macros.cmake +++ b/build_files/cmake/macros.cmake @@ -477,8 +477,8 @@ function(SETUP_LIBDIRS) # NOTE: For all new libraries, use absolute library paths. # This should eventually be phased out. - - if(NOT MSVC) + # APPLE plaform uses full paths for linking libraries, and avoids link_directories. + if(NOT MSVC AND NOT APPLE) link_directories(${JPEG_LIBPATH} ${PNG_LIBPATH} ${ZLIB_LIBPATH} ${FREETYPE_LIBPATH}) if(WITH_PYTHON) # AND NOT WITH_PYTHON_MODULE # WIN32 needs -- cgit v1.2.3