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macOS: Detect homebrew prefix from brew tool

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Although not recommended by homebrew, users can install it in a
non-standard prefix.  Ask `brew --prefix` before using defaults.
This commit is contained in:
Alexander Grund
2025-01-02 08:17:22 -05:00
committed by Brad King
parent 7739b5b492
commit da07c8ad2a
1 changed files with 20 additions and 4 deletions
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24
Modules/Platform/Darwin.cmake
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@@ -248,10 +248,26 @@ unset(_apps_paths)
include(Platform/UnixPaths)
if(CMAKE_SYSTEM_NAME STREQUAL "Darwin" AND CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64")
list(PREPEND CMAKE_SYSTEM_PREFIX_PATH
/opt/homebrew # Brew on Apple Silicon
)
if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
execute_process(
COMMAND brew --prefix
OUTPUT_VARIABLE _cmake_homebrew_prefix
RESULT_VARIABLE _brew_result
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if (_brew_result EQUAL 0 AND IS_DIRECTORY "${_cmake_homebrew_prefix}")
list(PREPEND CMAKE_SYSTEM_PREFIX_PATH "${_cmake_homebrew_prefix}")
elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64")
list(PREPEND CMAKE_SYSTEM_PREFIX_PATH
/opt/homebrew # Brew on Apple Silicon
)
else()
list(PREPEND CMAKE_SYSTEM_PREFIX_PATH
/usr/local # Brew on Intel
)
endif()
unset(_cmake_homebrew_prefix)
unset(_brew_result)
endif()
if(_CMAKE_OSX_SYSROOT_PATH)