CMake/Modules/Platform/Darwin.cmake

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set(APPLE 1)
# Darwin versions:
# 6.x == Mac OSX 10.2 (Jaguar)
# 7.x == Mac OSX 10.3 (Panther)
# 8.x == Mac OSX 10.4 (Tiger)
# 9.x == Mac OSX 10.5 (Leopard)
# 10.x == Mac OSX 10.6 (Snow Leopard)
# 11.x == Mac OSX 10.7 (Lion)
# 12.x == Mac OSX 10.8 (Mountain Lion)
string(REGEX REPLACE "^([0-9]+)\\.([0-9]+).*$" "\\1" DARWIN_MAJOR_VERSION "${CMAKE_SYSTEM_VERSION}")
string(REGEX REPLACE "^([0-9]+)\\.([0-9]+).*$" "\\2" DARWIN_MINOR_VERSION "${CMAKE_SYSTEM_VERSION}")
# Do not use the "-Wl,-search_paths_first" flag with the OSX 10.2 compiler.
# Done this way because it is too early to do a TRY_COMPILE.
if(NOT DEFINED HAVE_FLAG_SEARCH_PATHS_FIRST)
set(HAVE_FLAG_SEARCH_PATHS_FIRST 0)
if("${DARWIN_MAJOR_VERSION}" GREATER 6)
set(HAVE_FLAG_SEARCH_PATHS_FIRST 1)
endif()
endif()
# More desirable, but does not work:
#include(CheckCXXCompilerFlag)
#CHECK_CXX_COMPILER_FLAG("-Wl,-search_paths_first" HAVE_FLAG_SEARCH_PATHS_FIRST)
set(CMAKE_SHARED_LIBRARY_PREFIX "lib")
set(CMAKE_SHARED_LIBRARY_SUFFIX ".dylib")
set(CMAKE_SHARED_MODULE_PREFIX "lib")
set(CMAKE_SHARED_MODULE_SUFFIX ".so")
set(CMAKE_MODULE_EXISTS 1)
set(CMAKE_DL_LIBS "")
# Enable rpath support for 10.5 and greater where it is known to work.
if("${DARWIN_MAJOR_VERSION}" GREATER 8)
set(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "-Wl,-rpath,")
endif()
set(CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ")
set(CMAKE_C_OSX_CURRENT_VERSION_FLAG "-current_version ")
set(CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}")
set(CMAKE_CXX_OSX_CURRENT_VERSION_FLAG "${CMAKE_C_OSX_CURRENT_VERSION_FLAG}")
set(CMAKE_C_LINK_FLAGS "-Wl,-headerpad_max_install_names")
set(CMAKE_CXX_LINK_FLAGS "-Wl,-headerpad_max_install_names")
if(HAVE_FLAG_SEARCH_PATHS_FIRST)
set(CMAKE_C_LINK_FLAGS "-Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}")
set(CMAKE_CXX_LINK_FLAGS "-Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}")
endif()
set(CMAKE_PLATFORM_HAS_INSTALLNAME 1)
set(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-dynamiclib -Wl,-headerpad_max_install_names")
set(CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle -Wl,-headerpad_max_install_names")
set(CMAKE_SHARED_MODULE_LOADER_C_FLAG "-Wl,-bundle_loader,")
set(CMAKE_SHARED_MODULE_LOADER_CXX_FLAG "-Wl,-bundle_loader,")
set(CMAKE_FIND_LIBRARY_SUFFIXES ".dylib" ".so" ".a")
# hack: if a new cmake (which uses CMAKE_INSTALL_NAME_TOOL) runs on an old build tree
# (where install_name_tool was hardcoded) and where CMAKE_INSTALL_NAME_TOOL isn't in the cache
# and still cmake didn't fail in CMakeFindBinUtils.cmake (because it isn't rerun)
# hardcode CMAKE_INSTALL_NAME_TOOL here to install_name_tool, so it behaves as it did before, Alex
if(NOT DEFINED CMAKE_INSTALL_NAME_TOOL)
find_program(CMAKE_INSTALL_NAME_TOOL install_name_tool)
mark_as_advanced(CMAKE_INSTALL_NAME_TOOL)
endif()
# Make sure the combination of SDK and Deployment Target are allowed
if(CMAKE_OSX_DEPLOYMENT_TARGET)
if("${_CMAKE_OSX_SYSROOT_PATH}" MATCHES "/MacOSX([0-9]+\\.[0-9]+)[^/]*\\.sdk")
set(_sdk_ver "${CMAKE_MATCH_1}")
elseif("${_CMAKE_OSX_SYSROOT_ORIG}" MATCHES "^macosx([0-9]+\\.[0-9]+)$")
set(_sdk_ver "${CMAKE_MATCH_1}")
elseif("${_CMAKE_OSX_SYSROOT_ORIG}" STREQUAL "/")
set(_sdk_ver "${_CURRENT_OSX_VERSION}")
else()
message(FATAL_ERROR
"CMAKE_OSX_DEPLOYMENT_TARGET is '${CMAKE_OSX_DEPLOYMENT_TARGET}' "
"but CMAKE_OSX_SYSROOT:\n \"${_CMAKE_OSX_SYSROOT_ORIG}\"\n"
"is not set to a MacOSX SDK with a recognized version. "
"Either set CMAKE_OSX_SYSROOT to a valid SDK or set "
"CMAKE_OSX_DEPLOYMENT_TARGET to empty.")
endif()
if(CMAKE_OSX_DEPLOYMENT_TARGET VERSION_GREATER "${_sdk_ver}")
message(FATAL_ERROR
"CMAKE_OSX_DEPLOYMENT_TARGET (${CMAKE_OSX_DEPLOYMENT_TARGET}) "
"is greater than CMAKE_OSX_SYSROOT SDK:\n ${_CMAKE_OSX_SYSROOT_ORIG}\n"
"Please set CMAKE_OSX_DEPLOYMENT_TARGET to ${_sdk_ver} or lower.")
endif()
endif()
# Enable shared library versioning.
set(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-install_name")
# Xcode does not support -isystem yet.
if(XCODE)
set(CMAKE_INCLUDE_SYSTEM_FLAG_C)
set(CMAKE_INCLUDE_SYSTEM_FLAG_CXX)
endif()
if("${_CURRENT_OSX_VERSION}" VERSION_LESS "10.5")
Do not link private dependent shared libraries on OS X > 10.4 The default OS X 10.4 linker incorrectly searches for dependencies of linked shared libraries only under the -isysroot location. It fails to find dependencies of linked shared libraries in cases such as the ExportImport test. It produces errors like: /usr/libexec/gcc/i686-apple-darwin8/4.0.1/ld: warning can't open dynamic library: libtestLib3Imp.dylib referenced from: /.../ExportImport/Root/lib/libtestLib3lib.1.2.dylib (checking for undefined symbols may be affected) (No such file or directory, errno = 2) /usr/libexec/gcc/i686-apple-darwin8/4.0.1/ld: Undefined symbols: _testLib3Imp referenced from libtestLib3lib expected to be defined in libtestLib3Imp.dylib or with CMAKE_SKIP_RPATH off to enable install_name in the Export side: /usr/libexec/gcc/i686-apple-darwin8/4.0.1/ld: warning can't open dynamic library: /Developer/SDKs/MacOSX10.4u.sdk/.../ExportImport/Export/impl/libtestLib3Imp.dylib referenced from: /.../ExportImport/Export/libtestLib3lib.1.2.dylib (checking for undefined symbols may be affected) (No such file or directory, errno = 2) /usr/libexec/gcc/i686-apple-darwin8/4.0.1/ld: Undefined symbols:_testLib3Imp referenced from libtestLib3lib expected to be defined in /.../ExportImport/Export/impl/libtestLib3Imp.dylib Note how "/Developer/SDKs/MacOSX10.4u.sdk" is prepended to the dependent library path. Commit 2cff26fa (Support linking to shared libs with dependent libs, 2008-01-31) and commit 82fcaebe (Pass dependent library search path to linker on some platforms, 2008-02-01) worked around the problem by defining platform variable CMAKE_LINK_DEPENDENT_LIBRARY_FILES. It tells CMake to link to dependent libraries explicitly by their path thus telling the linker where to find them. Unfortunately the workaround had the side effect of linking dependent libraries and defeats most benefits of LINK_INTERFACE_LIBRARIES. Fortunately OS X 10.5 and above do not need to find transitive dependencies at all so we can avoid the workaround on Modern OS X.
2011-12-14 22:59:39 +04:00
# Need to list dependent shared libraries on link line. When building
# with -isysroot (for universal binaries), the linker always looks for
# dependent libraries under the sysroot. Listing them on the link
# line works around the problem.
set(CMAKE_LINK_DEPENDENT_LIBRARY_FILES 1)
endif()
set(CMAKE_C_CREATE_SHARED_LIBRARY_FORBIDDEN_FLAGS -w)
set(CMAKE_CXX_CREATE_SHARED_LIBRARY_FORBIDDEN_FLAGS -w)
set(CMAKE_C_CREATE_SHARED_LIBRARY
Support building shared libraries or modules without soname (#13155) Add a boolean target property NO_SONAME which may be used to disable soname for the specified shared library or module even if the platform supports it. This property should be useful for private shared libraries or various plugins which live in private directories and have not been designed to be found or loaded globally. Replace references to <CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG> and hard-coded -install_name flags with a conditional <SONAME_FLAG> which is expanded to the value of the CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG definition as long as soname supports is enabled for the target in question. Keep expanding CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG in rules in case third party projects still use it. Such projects would not yet use NO_SONAME so the adjacent <TARGET_SONAME> will always be expanded. Make <TARGET_INSTALLNAME_DIR> NO_SONAME aware as well. Since -install_name is soname on OS X, this should not be a problem if this variable is expanded only if soname is enabled. The Ninja generator performs rule variable substitution only once globally per rule to put its own placeholders. Final substitution is performed by ninja at build time. Therefore we cannot conditionally replace the soname placeholders on a per-target basis. Rather than omitting $SONAME from rules.ninja, simply do not write its contents for targets which have NO_SONAME. Since 3 variables are affected by NO_SONAME ($SONAME, $SONAME_FLAG, $INSTALLNAME_DIR), set them only if soname is enabled.
2012-04-22 17:42:55 +04:00
"<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
set(CMAKE_CXX_CREATE_SHARED_LIBRARY
Support building shared libraries or modules without soname (#13155) Add a boolean target property NO_SONAME which may be used to disable soname for the specified shared library or module even if the platform supports it. This property should be useful for private shared libraries or various plugins which live in private directories and have not been designed to be found or loaded globally. Replace references to <CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG> and hard-coded -install_name flags with a conditional <SONAME_FLAG> which is expanded to the value of the CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG definition as long as soname supports is enabled for the target in question. Keep expanding CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG in rules in case third party projects still use it. Such projects would not yet use NO_SONAME so the adjacent <TARGET_SONAME> will always be expanded. Make <TARGET_INSTALLNAME_DIR> NO_SONAME aware as well. Since -install_name is soname on OS X, this should not be a problem if this variable is expanded only if soname is enabled. The Ninja generator performs rule variable substitution only once globally per rule to put its own placeholders. Final substitution is performed by ninja at build time. Therefore we cannot conditionally replace the soname placeholders on a per-target basis. Rather than omitting $SONAME from rules.ninja, simply do not write its contents for targets which have NO_SONAME. Since 3 variables are affected by NO_SONAME ($SONAME, $SONAME_FLAG, $INSTALLNAME_DIR), set them only if soname is enabled.
2012-04-22 17:42:55 +04:00
"<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
set(CMAKE_Fortran_CREATE_SHARED_LIBRARY
Support building shared libraries or modules without soname (#13155) Add a boolean target property NO_SONAME which may be used to disable soname for the specified shared library or module even if the platform supports it. This property should be useful for private shared libraries or various plugins which live in private directories and have not been designed to be found or loaded globally. Replace references to <CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG> and hard-coded -install_name flags with a conditional <SONAME_FLAG> which is expanded to the value of the CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG definition as long as soname supports is enabled for the target in question. Keep expanding CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG in rules in case third party projects still use it. Such projects would not yet use NO_SONAME so the adjacent <TARGET_SONAME> will always be expanded. Make <TARGET_INSTALLNAME_DIR> NO_SONAME aware as well. Since -install_name is soname on OS X, this should not be a problem if this variable is expanded only if soname is enabled. The Ninja generator performs rule variable substitution only once globally per rule to put its own placeholders. Final substitution is performed by ninja at build time. Therefore we cannot conditionally replace the soname placeholders on a per-target basis. Rather than omitting $SONAME from rules.ninja, simply do not write its contents for targets which have NO_SONAME. Since 3 variables are affected by NO_SONAME ($SONAME, $SONAME_FLAG, $INSTALLNAME_DIR), set them only if soname is enabled.
2012-04-22 17:42:55 +04:00
"<CMAKE_Fortran_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
set(CMAKE_CXX_CREATE_SHARED_MODULE
"<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS> <LINK_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
set(CMAKE_C_CREATE_SHARED_MODULE
"<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_MODULE_CREATE_C_FLAGS> <LINK_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
set(CMAKE_Fortran_CREATE_SHARED_MODULE
"<CMAKE_Fortran_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_MODULE_CREATE_Fortran_FLAGS> <LINK_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
set(CMAKE_C_CREATE_MACOSX_FRAMEWORK
Support building shared libraries or modules without soname (#13155) Add a boolean target property NO_SONAME which may be used to disable soname for the specified shared library or module even if the platform supports it. This property should be useful for private shared libraries or various plugins which live in private directories and have not been designed to be found or loaded globally. Replace references to <CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG> and hard-coded -install_name flags with a conditional <SONAME_FLAG> which is expanded to the value of the CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG definition as long as soname supports is enabled for the target in question. Keep expanding CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG in rules in case third party projects still use it. Such projects would not yet use NO_SONAME so the adjacent <TARGET_SONAME> will always be expanded. Make <TARGET_INSTALLNAME_DIR> NO_SONAME aware as well. Since -install_name is soname on OS X, this should not be a problem if this variable is expanded only if soname is enabled. The Ninja generator performs rule variable substitution only once globally per rule to put its own placeholders. Final substitution is performed by ninja at build time. Therefore we cannot conditionally replace the soname placeholders on a per-target basis. Rather than omitting $SONAME from rules.ninja, simply do not write its contents for targets which have NO_SONAME. Since 3 variables are affected by NO_SONAME ($SONAME, $SONAME_FLAG, $INSTALLNAME_DIR), set them only if soname is enabled.
2012-04-22 17:42:55 +04:00
"<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
set(CMAKE_CXX_CREATE_MACOSX_FRAMEWORK
Support building shared libraries or modules without soname (#13155) Add a boolean target property NO_SONAME which may be used to disable soname for the specified shared library or module even if the platform supports it. This property should be useful for private shared libraries or various plugins which live in private directories and have not been designed to be found or loaded globally. Replace references to <CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG> and hard-coded -install_name flags with a conditional <SONAME_FLAG> which is expanded to the value of the CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG definition as long as soname supports is enabled for the target in question. Keep expanding CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG in rules in case third party projects still use it. Such projects would not yet use NO_SONAME so the adjacent <TARGET_SONAME> will always be expanded. Make <TARGET_INSTALLNAME_DIR> NO_SONAME aware as well. Since -install_name is soname on OS X, this should not be a problem if this variable is expanded only if soname is enabled. The Ninja generator performs rule variable substitution only once globally per rule to put its own placeholders. Final substitution is performed by ninja at build time. Therefore we cannot conditionally replace the soname placeholders on a per-target basis. Rather than omitting $SONAME from rules.ninja, simply do not write its contents for targets which have NO_SONAME. Since 3 variables are affected by NO_SONAME ($SONAME, $SONAME_FLAG, $INSTALLNAME_DIR), set them only if soname is enabled.
2012-04-22 17:42:55 +04:00
"<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <LINK_FLAGS> -o <TARGET> <SONAME_FLAG> <TARGET_INSTALLNAME_DIR><TARGET_SONAME> <OBJECTS> <LINK_LIBRARIES>")
# Set default framework search path flag for languages known to use a
# preprocessor that may find headers in frameworks.
set(CMAKE_C_FRAMEWORK_SEARCH_FLAG -F)
set(CMAKE_CXX_FRAMEWORK_SEARCH_FLAG -F)
set(CMAKE_Fortran_FRAMEWORK_SEARCH_FLAG -F)
# default to searching for frameworks first
if(NOT DEFINED CMAKE_FIND_FRAMEWORK)
set(CMAKE_FIND_FRAMEWORK FIRST)
endif()
# Older OS X linkers do not report their framework search path
# with -v but "man ld" documents the following locations.
set(CMAKE_PLATFORM_IMPLICIT_LINK_FRAMEWORK_DIRECTORIES
${_CMAKE_OSX_SYSROOT_PATH}/Library/Frameworks
${_CMAKE_OSX_SYSROOT_PATH}/System/Library/Frameworks
)
if(_CMAKE_OSX_SYSROOT_PATH)
# Treat some paths as implicit so we do not override the SDK versions.
list(APPEND CMAKE_PLATFORM_IMPLICIT_LINK_FRAMEWORK_DIRECTORIES
/System/Library/Frameworks)
endif()
if("${_CURRENT_OSX_VERSION}" VERSION_LESS "10.5")
# Older OS X tools had more implicit paths.
list(APPEND CMAKE_PLATFORM_IMPLICIT_LINK_FRAMEWORK_DIRECTORIES
${_CMAKE_OSX_SYSROOT_PATH}/Network/Library/Frameworks)
endif()
# set up the default search directories for frameworks
set(CMAKE_SYSTEM_FRAMEWORK_PATH
~/Library/Frameworks
)
if(_CMAKE_OSX_SYSROOT_PATH)
list(APPEND CMAKE_SYSTEM_FRAMEWORK_PATH
${_CMAKE_OSX_SYSROOT_PATH}/Library/Frameworks
${_CMAKE_OSX_SYSROOT_PATH}/Network/Library/Frameworks
${_CMAKE_OSX_SYSROOT_PATH}/System/Library/Frameworks
)
# add platform developer framework path if exists
get_filename_component(_CMAKE_OSX_PLATFORM_FRAMEWORK_PATH
${_CMAKE_OSX_SYSROOT_PATH}/../../Library/Frameworks ABSOLUTE)
if(IS_DIRECTORY ${_CMAKE_OSX_PLATFORM_FRAMEWORK_PATH})
list(APPEND CMAKE_SYSTEM_FRAMEWORK_PATH
${_CMAKE_OSX_PLATFORM_FRAMEWORK_PATH})
endif()
endif()
list(APPEND CMAKE_SYSTEM_FRAMEWORK_PATH
2006-03-30 01:34:50 +04:00
/Library/Frameworks
/Network/Library/Frameworks
/System/Library/Frameworks)
# Warn about known system mis-configuration case.
if(CMAKE_OSX_SYSROOT)
get_property(_IN_TC GLOBAL PROPERTY IN_TRY_COMPILE)
if(NOT _IN_TC AND
NOT IS_SYMLINK "${CMAKE_OSX_SYSROOT}/Library/Frameworks"
AND IS_SYMLINK "${CMAKE_OSX_SYSROOT}/Library/Frameworks/Frameworks")
message(WARNING "The SDK Library/Frameworks path\n"
" ${CMAKE_OSX_SYSROOT}/Library/Frameworks\n"
"is not set up correctly on this system. "
"This is known to occur when installing Xcode 3.2.6:\n"
" http://bugs.python.org/issue14018\n"
"The problem may cause build errors that report missing system frameworks. "
"Fix your SDK symlinks to resolve this issue and avoid this warning."
)
endif()
endif()
# default to searching for application bundles first
if(NOT DEFINED CMAKE_FIND_APPBUNDLE)
set(CMAKE_FIND_APPBUNDLE FIRST)
endif()
# set up the default search directories for application bundles
set(_apps_paths)
foreach(_path
"~/Applications"
"/Applications"
"${OSX_DEVELOPER_ROOT}/../Applications" # Xcode 4.3+
"${OSX_DEVELOPER_ROOT}/Applications" # pre-4.3
)
get_filename_component(_apps "${_path}" ABSOLUTE)
if(EXISTS "${_apps}")
list(APPEND _apps_paths "${_apps}")
endif()
endforeach()
if(_apps_paths)
list(REMOVE_DUPLICATES _apps_paths)
endif()
set(CMAKE_SYSTEM_APPBUNDLE_PATH
${_apps_paths})
unset(_apps_paths)
include(Platform/UnixPaths)
if(_CMAKE_OSX_SYSROOT_PATH AND EXISTS ${_CMAKE_OSX_SYSROOT_PATH}/usr/include)
list(APPEND CMAKE_SYSTEM_PREFIX_PATH ${_CMAKE_OSX_SYSROOT_PATH}/usr)
foreach(lang C CXX)
list(APPEND CMAKE_${lang}_IMPLICIT_INCLUDE_DIRECTORIES ${_CMAKE_OSX_SYSROOT_PATH}/usr/include)
endforeach()
endif()
list(APPEND CMAKE_SYSTEM_PREFIX_PATH
/sw # Fink
/opt/local # MacPorts
)