RPCS3 cmake with installation

CmakeLists.txt

cmake_minimum_required(VERSION 2.8.12)

# uncomment next line if you want to build with GDB stub
# add_definitions(-DWITH_GDB_DEBUGGER)

set(ASMJIT_STATIC TRUE)

if (NOT CMAKE_BUILD_TYPE)
	message(STATUS "No build type selected, default to Release")
	set(CMAKE_BUILD_TYPE "Release")
endif()

if(NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
	message( FATAL_ERROR "RPCS3 can only be compiled on 64-bit platforms." )
endif()

if (CMAKE_COMPILER_IS_GNUCC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1)
	message( FATAL_ERROR "RPCS3 requires at least gcc-5.1." )
endif()

if (CMAKE_COMPILER_IS_GNUCC AND CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL 6.1)
	message( FATAL_ERROR "RPCS3 can't be compiled with gcc-6.1, see #1691." )
endif()

find_program(CCACHE_FOUND ccache)
if (CCACHE_FOUND)
	set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
	set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
endif()

add_definitions(-DCMAKE_BUILD)

# We use libpng's static library and don't need to build the shared library and run the tests
set(PNG_SHARED OFF CACHE BOOL "Build shared lib." FORCE)
set(PNG_TESTS  OFF CACHE BOOL "Build tests." FORCE)

# Select the version of libpng to use, default is builtin
if (NOT USE_SYSTEM_LIBPNG)
	add_subdirectory( 3rdparty/libpng )
endif()

option(VULKAN_PREBUILT "" OFF)

# TODO: do real installation, including copying directory structure
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE "${PROJECT_BINARY_DIR}/bin")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG "${PROJECT_BINARY_DIR}/bin")
add_subdirectory( Vulkan )
add_subdirectory( rpcs3 )
add_subdirectory( rsx_program_decompiler )

include_directories(3rdparty/hidapi/hidapi)
if(APPLE)
	add_subdirectory(3rdparty/hidapi/mac)
	#list(APPEND LIBS hidapi)
elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
	add_subdirectory(3rdparty/hidapi/linux)
elseif(MSVC)
	add_subdirectory(3rdparty/hidapi/windows)
else()
	add_subdirectory(3rdparty/hidapi/libusb)
	#list(APPEND LIBS hidapi-libusb)
endif()

# Linux installation
set(bindir ${CMAKE_INSTALL_PREFIX}/bin CACHE PATH "bindir")

if(CMAKE_SYSTEM_NAME MATCHES "Linux|FreeBSD|OpenBSD")
  # Install the application icon and menu item
  install(FILES Data/rpcs3.svg
          DESTINATION ${CMAKE_INSTALL_PREFIX}/share/icons/hicolor/scalable/apps)
  install(FILES Data/rpcs3.png
          DESTINATION ${CMAKE_INSTALL_PREFIX}/share/icons/hicolor/48x48/apps)
  install(FILES Data/rpcs3.desktop
          DESTINATION ${CMAKE_INSTALL_PREFIX}/share/applications)
  install(FILES Data/rpcs3.xml
          DESTINATION ${CMAKE_INSTALL_PREFIX}/share/mime/packages)
  # TODO: Create and install linux man pages.
endif()

# Question, should we setup CPack?