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-rw-r--r--Modules/Platform/Darwin-GNU.cmake18
1 files changed, 18 insertions, 0 deletions
diff --git a/Modules/Platform/Darwin-GNU.cmake b/Modules/Platform/Darwin-GNU.cmake
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--- /dev/null
+++ b/Modules/Platform/Darwin-GNU.cmake
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+macro(cmake_gnu_has_isysroot lang)
+ if("x${CMAKE_${lang}_HAS_ISYSROOT}" STREQUAL "x")
+ set(_doc "${lang} compiler has -isysroot")
+ message(STATUS "Checking whether ${_doc}")
+ execute_process(
+ COMMAND ${CMAKE_${lang}_COMPILER} "-v" "--help"
+ OUTPUT_VARIABLE _gcc_help
+ ERROR_VARIABLE _gcc_help
+ )
+ if("${_gcc_help}" MATCHES "isysroot")
+ message(STATUS "Checking whether ${_doc} - yes")
+ set(CMAKE_${lang}_HAS_ISYSROOT 1)
+ else()
+ message(STATUS "Checking whether ${_doc} - no")
+ set(CMAKE_${lang}_HAS_ISYSROOT 0)
+ endif()
+ endif()
+endmacro()