Commit 0200d0a9 authored by Brad King's avatar Brad King

OS X: Factor a Darwin-Initialize module out of Platform/Darwin

Initialize variables CMAKE_OSX_SYSROOT, CMAKE_OSX_DEPLOYMENT_TARGET, and
CMAKE_OSX_ARCHITECTURES prior to enabling any languages.  This will
allow compiler identification to consider these values.
parent 416761e3
# 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")
if(CMAKE_OSX_DEPLOYMENT_TARGET)
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}")
else()
set(_CMAKE_OSX_SDKS_VER ${_CURRENT_OSX_VERSION}${_CMAKE_OSX_SDKS_VER_SUFFIX_${_CURRENT_OSX_VERSION}})
set(_CMAKE_OSX_SYSROOT_DEFAULT "${_CMAKE_OSX_SDKS_DIR}/MacOSX${_CMAKE_OSX_SDKS_VER}.sdk")
message(WARNING
"CMAKE_OSX_DEPLOYMENT_TARGET is '${CMAKE_OSX_DEPLOYMENT_TARGET}' "
"but the matching SDK does not exist at:\n \"${_CMAKE_OSX_SYSROOT_CHECK}\"\n"
"Instead using SDK:\n \"${_CMAKE_OSX_SYSROOT_DEFAULT}\"\n"
"matching the host OS X version."
)
endif()
else()
set(_CMAKE_OSX_SDKS_VER ${_CURRENT_OSX_VERSION}${_CMAKE_OSX_SDKS_VER_SUFFIX_${_CURRENT_OSX_VERSION}})
set(_CMAKE_OSX_SYSROOT_DEFAULT "${_CMAKE_OSX_SDKS_DIR}/MacOSX${_CMAKE_OSX_SDKS_VER}.sdk")
endif()
else()
# Assume developer files are in root (such as Xcode 4.5 command-line tools).
set(_CMAKE_OSX_SYSROOT_DEFAULT "")
endif()
endif()
# Set cache variable - end user may change this during ccmake or cmake-gui configure.
# Choose the type based on the current value.
set(_CMAKE_OSX_SYSROOT_TYPE STRING)
foreach(v CMAKE_OSX_SYSROOT _CMAKE_OSX_SYSROOT_DEFAULT)
if("x${${v}}" MATCHES "/")
set(_CMAKE_OSX_SYSROOT_TYPE PATH)
break()
endif()
endforeach()
set(CMAKE_OSX_SYSROOT "${_CMAKE_OSX_SYSROOT_DEFAULT}" CACHE ${_CMAKE_OSX_SYSROOT_TYPE}
"The product will be built against the headers and libraries located inside the indicated SDK.")
# Transform the cached value to something we can use.
set(_CMAKE_OSX_SYSROOT_ORIG "${CMAKE_OSX_SYSROOT}")
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 ${CMAKE_OSX_SYSROOT}\n"
"because the directory does not exist.")
set(CMAKE_OSX_SYSROOT "")
set(_CMAKE_OSX_SYSROOT_ORIG "")
endif()
set(_CMAKE_OSX_SYSROOT_PATH "${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()
......@@ -64,143 +64,6 @@ if(NOT DEFINED CMAKE_INSTALL_NAME_TOOL)
mark_as_advanced(CMAKE_INSTALL_NAME_TOOL)
endif()
# 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")
if(CMAKE_OSX_DEPLOYMENT_TARGET)
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}")
else()
set(_CMAKE_OSX_SDKS_VER ${_CURRENT_OSX_VERSION}${_CMAKE_OSX_SDKS_VER_SUFFIX_${_CURRENT_OSX_VERSION}})
set(_CMAKE_OSX_SYSROOT_DEFAULT "${_CMAKE_OSX_SDKS_DIR}/MacOSX${_CMAKE_OSX_SDKS_VER}.sdk")
message(WARNING
"CMAKE_OSX_DEPLOYMENT_TARGET is '${CMAKE_OSX_DEPLOYMENT_TARGET}' "
"but the matching SDK does not exist at:\n \"${_CMAKE_OSX_SYSROOT_CHECK}\"\n"
"Instead using SDK:\n \"${_CMAKE_OSX_SYSROOT_DEFAULT}\"\n"
"matching the host OS X version."
)
endif()
else()
set(_CMAKE_OSX_SDKS_VER ${_CURRENT_OSX_VERSION}${_CMAKE_OSX_SDKS_VER_SUFFIX_${_CURRENT_OSX_VERSION}})
set(_CMAKE_OSX_SYSROOT_DEFAULT "${_CMAKE_OSX_SDKS_DIR}/MacOSX${_CMAKE_OSX_SDKS_VER}.sdk")
endif()
else()
# Assume developer files are in root (such as Xcode 4.5 command-line tools).
set(_CMAKE_OSX_SYSROOT_DEFAULT "")
endif()
endif()
# Set cache variable - end user may change this during ccmake or cmake-gui configure.
# Choose the type based on the current value.
set(_CMAKE_OSX_SYSROOT_TYPE STRING)
foreach(v CMAKE_OSX_SYSROOT _CMAKE_OSX_SYSROOT_DEFAULT)
if("x${${v}}" MATCHES "/")
set(_CMAKE_OSX_SYSROOT_TYPE PATH)
break()
endif()
endforeach()
set(CMAKE_OSX_SYSROOT "${_CMAKE_OSX_SYSROOT_DEFAULT}" CACHE ${_CMAKE_OSX_SYSROOT_TYPE}
"The product will be built against the headers and libraries located inside the indicated SDK.")
# Transform the cached value to something we can use.
set(_CMAKE_OSX_SYSROOT_ORIG "${CMAKE_OSX_SYSROOT}")
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 ${CMAKE_OSX_SYSROOT}\n"
"because the directory does not exist.")
set(CMAKE_OSX_SYSROOT "")
set(_CMAKE_OSX_SYSROOT_ORIG "")
endif()
set(_CMAKE_OSX_SYSROOT_PATH "${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 "${_CMAKE_OSX_SYSROOT_PATH}")
endif()
endif()
endif()
endif()
# Make sure the combination of SDK and Deployment Target are allowed
if(CMAKE_OSX_DEPLOYMENT_TARGET)
if("${_CMAKE_OSX_SYSROOT_PATH}" MATCHES "^.*/MacOSX([0-9]+\\.[0-9]+)[^/]*\\.sdk")
......
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