darling/CMakeLists.txt

project(darling)

cmake_minimum_required(VERSION 2.8)
enable_language(ASM)

set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
include(InstallSymlink)

set(DARLING_TOP_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")
set(DARLING_NO_EXECUTABLES OFF)
set(CMAKE_C_IMPLICIT_LINK_LIBRARIES "")
set(CMAKE_CXX_IMPLICIT_LINK_LIBRARIES "")

if (${CMAKE_HOST_SYSTEM_PROCESSOR} MATCHES "i686|i386")
	message(FATAL_ERROR "This software can only be built on x86-64 systems")
endif (${CMAKE_HOST_SYSTEM_PROCESSOR} MATCHES "i686|i386")

#if (NOT BITS)
#	message(FATAL_ERROR "BITS is not specified (32/64)")
#endif (NOT BITS)

SET(IGNORED_WARNINGS "-Wno-nullability-completeness")

if (${CMAKE_C_COMPILER_ID} STREQUAL "Clang" AND NOT ${CMAKE_C_COMPILER_VERSION} VERSION_LESS "3.9")
	SET(IGNORED_WARNINGS "${IGNORED_WARNINGS} -Wno-expansion-to-defined")
endif (${CMAKE_C_COMPILER_ID} STREQUAL "Clang" AND NOT ${CMAKE_C_COMPILER_VERSION} VERSION_LESS "3.9")

SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${IGNORED_WARNINGS}")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${IGNORED_WARNINGS}")

#SET(CMAKE_ASM_FLAGS "-m${BITS}")
#SET(CMAKE_ASM-ATT_FLAGS "-m${BITS}")

message(STATUS "Building for ${CMAKE_SYSTEM_PROCESSOR}, CFLAGS: ${CMAKE_C_FLAGS}, libdir: ${CMAKE_INSTALL_LIBDIR}")

# --as-needed breaks Darling
#set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--no-as-needed")

if (BITS EQUAL 32)
	# Prevent building Darling executables (e.g. Bash)
	set(DARLING_NO_EXECUTABLES ON)

	SET(SUFFIX "32")
	add_definitions(-DTARGET_CPU_X86=1 -D__LITTLE_ENDIAN__)
	set(DARLING_NO_EXECUTABLES ON)

else()

	set(SUFFIX "64")
	#add_definitions(-DTARGET_CPU_X86_64=1 -D__LITTLE_ENDIAN__)

endif()

enable_language(ASM-ATT)

option(FRAMEWORK_COREAUDIO "Enable audio-related functionality" OFF)
option(FRAMEWORK_APPKIT "Enable AppKit development code" OFF)

add_subdirectory(src)

if (NOT DARLING_NO_EXECUTABLES)
	install(DIRECTORY DESTINATION libexec/darling/private)
	install(DIRECTORY DESTINATION libexec/darling/private/etc)
	install(DIRECTORY DESTINATION libexec/darling/private/var)
	InstallSymlink(private/etc ${CMAKE_INSTALL_PREFIX}/libexec/darling/etc)
	InstallSymlink(private/var ${CMAKE_INSTALL_PREFIX}/libexec/darling/var)
	InstallSymlink(private/tmp ${CMAKE_INSTALL_PREFIX}/libexec/darling/tmp)

	install(FILES etc/dylib.conf etc/version.conf
		DESTINATION libexec/darling/etc/darling)
	install(FILES etc/resolv.conf
		DESTINATION libexec/darling/etc)

	install(DIRECTORY DESTINATION libexec/darling/Volumes)
	install(DIRECTORY DESTINATION libexec/darling/Volumes/SystemRoot)
	InstallSymlink(/ ${CMAKE_INSTALL_PREFIX}/libexec/darling/Volumes/DarlingEmulatedDrive)

	install(DIRECTORY DESTINATION libexec/darling/proc)

	install(DIRECTORY DESTINATION libexec/darling/var/root)
	install(DIRECTORY DESTINATION libexec/darling/var/run)
	InstallSymlink(/dev/log ${CMAKE_INSTALL_PREFIX}/libexec/darling/var/run/syslog)

	install(DIRECTORY DESTINATION libexec/darling/usr)
	install(DIRECTORY DESTINATION libexec/darling/usr/local)
	install(DIRECTORY DESTINATION libexec/darling/usr/local/share)
	InstallSymlink(/Volumes/SystemRoot${CMAKE_INSTALL_PREFIX}/share/darling ${CMAKE_INSTALL_PREFIX}/libexec/darling/usr/local/share/darling)

	InstallSymlink(/Volumes/SystemRoot/dev ${CMAKE_INSTALL_PREFIX}/libexec/darling/dev)
	InstallSymlink(/Volumes/SystemRoot/tmp ${CMAKE_INSTALL_PREFIX}/libexec/darling/private/tmp)
	InstallSymlink(/Volumes/SystemRoot/home ${CMAKE_INSTALL_PREFIX}/libexec/darling/Users)
	InstallSymlink(Users ${CMAKE_INSTALL_PREFIX}/libexec/darling/home)

	InstallSymlink(/proc/self/mounts ${CMAKE_INSTALL_PREFIX}/libexec/darling/etc/mtab)
	InstallSymlink(/Volumes/SystemRoot/etc/passwd ${CMAKE_INSTALL_PREFIX}/libexec/darling/etc/passwd)
	InstallSymlink(/Volumes/SystemRoot/etc/group ${CMAKE_INSTALL_PREFIX}/libexec/darling/etc/group)
	InstallSymlink(/Volumes/SystemRoot/etc/localtime ${CMAKE_INSTALL_PREFIX}/libexec/darling/etc/localtime)

	install(DIRECTORY DESTINATION libexec/darling/etc/ld.so.conf.d)
	install(CODE "execute_process(COMMAND bash ${DARLING_TOP_DIRECTORY}/src/setup-ld-so.sh WORKING_DIRECTORY ${CMAKE_INSTALL_PREFIX}/libexec/darling)")
	InstallSymlink(/Volumes/SystemRoot/lib ${CMAKE_INSTALL_PREFIX}/libexec/darling/lib)
	InstallSymlink(/Volumes/SystemRoot/lib64 ${CMAKE_INSTALL_PREFIX}/libexec/darling/lib64)
endif (NOT DARLING_NO_EXECUTABLES)