diff options
Diffstat (limited to 'Modules/Platform/Darwin-Initialize.cmake')
| -rw-r--r-- | Modules/Platform/Darwin-Initialize.cmake | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/Modules/Platform/Darwin-Initialize.cmake b/Modules/Platform/Darwin-Initialize.cmake new file mode 100644 index 000000000..b539e457d --- /dev/null +++ b/Modules/Platform/Darwin-Initialize.cmake @@ -0,0 +1,143 @@ +# Ask xcode-select where to find /Developer or fall back to ancient location. +execute_process(COMMAND xcode-select -print-path + OUTPUT_VARIABLE _stdout + OUTPUT_STRIP_TRAILING_WHITESPACE + ERROR_VARIABLE _stderr + RESULT_VARIABLE _failed) +if(NOT _failed AND IS_DIRECTORY ${_stdout}) + set(OSX_DEVELOPER_ROOT ${_stdout}) +elseif(IS_DIRECTORY "/Developer") + set(OSX_DEVELOPER_ROOT "/Developer") +else() + set(OSX_DEVELOPER_ROOT "") +endif() + +execute_process(COMMAND sw_vers -productVersion + OUTPUT_VARIABLE CURRENT_OSX_VERSION + OUTPUT_STRIP_TRAILING_WHITESPACE) + +# Save CMAKE_OSX_ARCHITECTURES from the environment. +set(CMAKE_OSX_ARCHITECTURES "$ENV{CMAKE_OSX_ARCHITECTURES}" CACHE STRING + "Build architectures for OSX") + +#---------------------------------------------------------------------------- +# _CURRENT_OSX_VERSION - as a two-component string: 10.5, 10.6, ... +# +string(REGEX REPLACE "^([0-9]+\\.[0-9]+).*$" "\\1" + _CURRENT_OSX_VERSION "${CURRENT_OSX_VERSION}") + +#---------------------------------------------------------------------------- +# CMAKE_OSX_DEPLOYMENT_TARGET + +# Set cache variable - end user may change this during ccmake or cmake-gui configure. +if(_CURRENT_OSX_VERSION VERSION_GREATER 10.3) + set(CMAKE_OSX_DEPLOYMENT_TARGET "$ENV{MACOSX_DEPLOYMENT_TARGET}" CACHE STRING + "Minimum OS X version to target for deployment (at runtime); newer APIs weak linked. Set to empty string for default value.") +endif() + +#---------------------------------------------------------------------------- +# CMAKE_OSX_SYSROOT + +if(CMAKE_OSX_SYSROOT) + # Use the existing value without further computation to choose a default. + set(_CMAKE_OSX_SYSROOT_DEFAULT "${CMAKE_OSX_SYSROOT}") +elseif(NOT "x$ENV{SDKROOT}" STREQUAL "x" AND + (NOT "x$ENV{SDKROOT}" MATCHES "/" OR IS_DIRECTORY "$ENV{SDKROOT}")) + # Use the value of SDKROOT from the environment. + set(_CMAKE_OSX_SYSROOT_DEFAULT "$ENV{SDKROOT}") +elseif("${CMAKE_GENERATOR}" MATCHES Xcode + OR CMAKE_OSX_DEPLOYMENT_TARGET + OR CMAKE_OSX_ARCHITECTURES MATCHES "[^;]" + OR NOT EXISTS "/usr/include/sys/types.h") + # Find installed SDKs in either Xcode-4.3+ or pre-4.3 SDKs directory. + set(_CMAKE_OSX_SDKS_DIR "") + if(OSX_DEVELOPER_ROOT) + foreach(d Platforms/MacOSX.platform/Developer/SDKs SDKs) + file(GLOB _CMAKE_OSX_SDKS ${OSX_DEVELOPER_ROOT}/${d}/*) + if(_CMAKE_OSX_SDKS) + set(_CMAKE_OSX_SDKS_DIR ${OSX_DEVELOPER_ROOT}/${d}) + break() + endif() + endforeach() + endif() + + if(_CMAKE_OSX_SDKS_DIR) + # Select SDK for current OSX version accounting for the known + # specially named SDKs. + set(_CMAKE_OSX_SDKS_VER_SUFFIX_10.4 "u") + set(_CMAKE_OSX_SDKS_VER_SUFFIX_10.3 ".9") + + # find the latest SDK + set(_CMAKE_OSX_LATEST_SDK_VERSION "0.0") + file(GLOB _CMAKE_OSX_SDKS RELATIVE "${_CMAKE_OSX_SDKS_DIR}" "${_CMAKE_OSX_SDKS_DIR}/MacOSX*.sdk") + foreach(_SDK ${_CMAKE_OSX_SDKS}) + if(_SDK MATCHES "MacOSX([0-9]+\\.[0-9]+)[^/]*\\.sdk" AND CMAKE_MATCH_1 VERSION_GREATER ${_CMAKE_OSX_LATEST_SDK_VERSION}) + set(_CMAKE_OSX_LATEST_SDK_VERSION "${CMAKE_MATCH_1}") + endif() + endforeach() + + # pick an SDK that works + set(_CMAKE_OSX_SYSROOT_DEFAULT) + foreach(ver ${CMAKE_OSX_DEPLOYMENT_TARGET} + ${_CURRENT_OSX_VERSION} + ${_CMAKE_OSX_LATEST_SDK_VERSION}) + set(_CMAKE_OSX_DEPLOYMENT_TARGET ${ver}) + set(_CMAKE_OSX_SDKS_VER ${_CMAKE_OSX_DEPLOYMENT_TARGET}${_CMAKE_OSX_SDKS_VER_SUFFIX_${_CMAKE_OSX_DEPLOYMENT_TARGET}}) + set(_CMAKE_OSX_SYSROOT_CHECK "${_CMAKE_OSX_SDKS_DIR}/MacOSX${_CMAKE_OSX_SDKS_VER}.sdk") + if(IS_DIRECTORY "${_CMAKE_OSX_SYSROOT_CHECK}") + set(_CMAKE_OSX_SYSROOT_DEFAULT "${_CMAKE_OSX_SYSROOT_CHECK}") + break() + endif() + endforeach() + + if(NOT CMAKE_CROSSCOMPILING AND NOT CMAKE_OSX_DEPLOYMENT_TARGET AND _CURRENT_OSX_VERSION VERSION_LESS _CMAKE_OSX_DEPLOYMENT_TARGET) + set(CMAKE_OSX_DEPLOYMENT_TARGET ${_CURRENT_OSX_VERSION} CACHE STRING + "Minimum OS X version to target for deployment (at runtime); newer APIs weak linked. Set to empty string for default value." FORCE) + endif() + else() + # Assume developer files are in root (such as Xcode 4.5 command-line tools). + set(_CMAKE_OSX_SYSROOT_DEFAULT "") + endif() +endif() + +# Set cache variable - end user may change this during ccmake or cmake-gui configure. +# Choose the type based on the current value. +set(_CMAKE_OSX_SYSROOT_TYPE STRING) +foreach(v CMAKE_OSX_SYSROOT _CMAKE_OSX_SYSROOT_DEFAULT) + if("x${${v}}" MATCHES "/") + set(_CMAKE_OSX_SYSROOT_TYPE PATH) + break() + endif() +endforeach() +set(CMAKE_OSX_SYSROOT "${_CMAKE_OSX_SYSROOT_DEFAULT}" CACHE ${_CMAKE_OSX_SYSROOT_TYPE} + "The product will be built against the headers and libraries located inside the indicated SDK.") + +# Transform the cached value to something we can use. +set(_CMAKE_OSX_SYSROOT_PATH "") +if(CMAKE_OSX_SYSROOT) + if("x${CMAKE_OSX_SYSROOT}" MATCHES "/") + # This is a path to the SDK. Make sure it exists. + if(NOT IS_DIRECTORY "${CMAKE_OSX_SYSROOT}") + message(WARNING "Ignoring CMAKE_OSX_SYSROOT value:\n ${CMAKE_OSX_SYSROOT}\n" + "because the directory does not exist.") + set(CMAKE_OSX_SYSROOT "") + endif() + set(_CMAKE_OSX_SYSROOT_PATH "${CMAKE_OSX_SYSROOT}") + else() + # Transform the sdk name into a path. + execute_process( + COMMAND xcodebuild -sdk ${CMAKE_OSX_SYSROOT} -version Path + OUTPUT_VARIABLE _stdout + OUTPUT_STRIP_TRAILING_WHITESPACE + ERROR_VARIABLE _stderr + RESULT_VARIABLE _failed + ) + if(NOT _failed AND IS_DIRECTORY "${_stdout}") + set(_CMAKE_OSX_SYSROOT_PATH "${_stdout}") + # For non-Xcode generators use the path. + if(NOT "${CMAKE_GENERATOR}" MATCHES "Xcode") + set(CMAKE_OSX_SYSROOT "${_CMAKE_OSX_SYSROOT_PATH}") + endif() + endif() + endif() +endif() |