if(APPLE)
if(${CMAKE_VERSION} VERSION_GREATER "2.8.10.2" AND
${CMAKE_VERSION} VERSION_LESS "2.8.12.1")
message(FATAL_ERROR "This version of CMake is known *not* to work, please update or use a lower version")
endif()
set(CMAKE_FIND_FRAMEWORK "FIRST")
#what system are we building for
set(minimum_macosx_version $ENV{MACOSX_DEPLOYMENT_TARGET})
#detect on which system we are: if sw_vers cannot be found for any reason (re)use minimum_macosx_version
find_program(sw_vers sw_vers)
if(sw_vers)
execute_process(COMMAND ${sw_vers} "-productVersion"
OUTPUT_VARIABLE current_macosx_version
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REGEX REPLACE "([0-9]+.[0-9]+).[0-9]+" "\\1" current_macosx_version ${current_macosx_version})
else()
if(NOT minimum_macosx_version)
message(FATAL_ERROR "sw_vers not found! Need explicit MACOSX_DEPLOYMENT_TARGET variable set")
else()
message("*** sw_vers not found! Fallback to MACOSX_DEPLOYMENT_TARGET variable ***")
set(current_macosx_version ${minimum_macosx_version})
endif()
endif()
#if nothing is set, we deploy only for the current system
if(NOT minimum_macosx_version)
set(minimum_macosx_version ${current_macosx_version})
endif()
#10.3 systems don't have enough processing power anyway
#10.4 does not have @rpath support (which SDL uses)
if(minimum_macosx_version VERSION_LESS "10.5")
message(FATAL_ERROR "Hedgewars is not supported on your version of Mac OS X")
endif()
if(NOT CMAKE_OSX_ARCHITECTURES)
if(current_macosx_version VERSION_LESS "10.6")
#SDL is only 32 bit on older OS version
if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "powerpc*")
set(CMAKE_OSX_ARCHITECTURES "ppc7400")
else()
set(CMAKE_OSX_ARCHITECTURES "i386")
endif()
endif()
endif()
#parse this system variable and adjust only the powerpc syntax to be compatible with -P
if(CMAKE_OSX_ARCHITECTURES)
string(REGEX MATCH "[pP][pP][cC]+" powerpc_build "${CMAKE_OSX_ARCHITECTURES}")
string(REGEX MATCH "[iI]386+" i386_build "${CMAKE_OSX_ARCHITECTURES}")
string(REGEX MATCH "[xX]86_64+" x86_64_build "${CMAKE_OSX_ARCHITECTURES}")
if(x86_64_build)
add_flag_prepend(CMAKE_Pascal_FLAGS -Px86_64)
elseif(i386_build)
add_flag_prepend(CMAKE_Pascal_FLAGS -Pi386)
elseif(powerpc_build)
add_flag_prepend(CMAKE_Pascal_FLAGS -Ppowerpc)
else()
message(FATAL_ERROR "Unknown architecture present in CMAKE_OSX_ARCHITECTURES (${CMAKE_OSX_ARCHITECTURES})")
endif()
list(LENGTH CMAKE_OSX_ARCHITECTURES num_of_archs)
if(num_of_archs GREATER 1)
message("*** Only one architecture in CMAKE_OSX_ARCHITECTURES is supported, picking the first one ***")
endif()
elseif(CMAKE_SIZEOF_VOID_P MATCHES "8")
#if that variable is not set check if we are on x86_64 and if so force it, else use default
add_flag_prepend(CMAKE_Pascal_FLAGS -Px86_64)
endif()
#CMAKE_OSX_SYSROOT is set at the system version we are supposed to build on
#we need to provide the correct one when host and target differ
if(NOT CMAKE_OSX_SYSROOT AND
NOT ${minimum_macosx_version} VERSION_EQUAL ${current_macosx_version})
find_program(xcrun xcrun)
if(xcrun)
execute_process(COMMAND ${xcrun} "--show-sdk-path"
OUTPUT_VARIABLE current_sdk_path
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE "${current_macosx_version}"
"${minimum_macosx_version}"
CMAKE_OSX_SYSROOT
"${current_sdk_path}")
else()
message("*** xcrun not found! Build will work on ${current_macosx_version} only ***")
endif()
endif()
if(CMAKE_OSX_SYSROOT)
add_flag_append(CMAKE_Pascal_FLAGS "-XR${CMAKE_OSX_SYSROOT}")
add_flag_append(CMAKE_Pascal_FLAGS "-k-macosx_version_min -k${minimum_macosx_version}")
add_flag_append(CMAKE_Pascal_FLAGS "-k-L${LIBRARY_OUTPUT_PATH} -Fl${LIBRARY_OUTPUT_PATH}")
endif()
#add user framework directory
add_flag_append(CMAKE_Pascal_FLAGS "-Ff~/Library/Frameworks")
#workaround older cmake versions
if(${CMAKE_VERSION} VERSION_LESS "2.8.12")
add_flag_append(CMAKE_C_LINK_FLAGS "-Wl,-rpath -Wl,${CMAKE_INSTALL_RPATH}")
add_flag_append(CMAKE_CXX_LINK_FLAGS "-Wl,-rpath -Wl,${CMAKE_INSTALL_RPATH}")
add_flag_append(CMAKE_Pascal_LINK_FLAGS "-k-rpath -k${CMAKE_INSTALL_RPATH}")
endif()
endif(APPLE)
if(MINGW)
#this flags prevents a few dll hell problems
add_flag_append(CMAKE_C_FLAGS "-static-libgcc")
add_flag_append(CMAKE_CXX_FLAGS "-static-libgcc")
endif(MINGW)
if(WIN32)
if(NOT ${BUILD_SHARED_LIB})
message(FATAL_ERROR "Static linking is not supported on Windows")
endif()
endif(WIN32)
if(UNIX)
add_flag_append(CMAKE_C_FLAGS "-fPIC")
add_flag_append(CMAKE_CXX_FLAGS "-fPIC")
endif(UNIX)