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CMakeLists.txt
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CMakeLists.txt
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cmake_minimum_required (VERSION 3.0)
project(LTheory)
find_package(OpenGL REQUIRED)
# force SFML to build as a static lib to minimize pain
set(BUILD_SHARED_LIBS FALSE CACHE BOOL "" FORCE)
add_subdirectory(ext/SFML)
function (configure_output_dir target)
set_target_properties (${target} PROPERTIES
RUNTIME_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/bin"
LIBRARY_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/bin"
ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/bin")
foreach (config ${CMAKE_CONFIGURATION_TYPES})
string (TOUPPER ${config} config)
set_target_properties (${target} PROPERTIES
RUNTIME_OUTPUT_DIRECTORY_${config} "${CMAKE_SOURCE_DIR}/bin"
LIBRARY_OUTPUT_DIRECTORY_${config} "${CMAKE_SOURCE_DIR}/bin"
ARCHIVE_OUTPUT_DIRECTORY_${config} "${CMAKE_SOURCE_DIR}/bin")
endforeach (config)
endfunction ()
# Set build path
set(BUILD_DIR ${CMAKE_BINARY_DIR})
set(EXECUTABLE_OUTPUT_PATH ${BUILD_DIR} CACHE PATH "Build directory" FORCE)
set(LIBRARY_OUTPUT_PATH ${BUILD_DIR} CACHE PATH "Build directory" FORCE)
# Detect OS
if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
set(WINDOWS 1)
elseif(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
set(LINUX 1)
elseif(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
set(LINUX 1)
elseif(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
set(MAC 1)
else()
message(FATAL_ERROR "Unsupported operating system")
return()
endif()
# Detect Architecture
include(CheckTypeSize)
check_type_size(void* SIZEOF_VOID_PTR)
if("${SIZEOF_VOID_PTR}" STREQUAL "4")
set(ARCH_32 1)
elseif("${SIZEOF_VOID_PTR}" STREQUAL "8")
set(ARCH_64 1)
else()
message(FATAL_ERROR "Unsupported architecture")
return()
endif()
# Get ext includes
include_directories(src/liblt
include
include/FreeType
ext/SFML/include)
# Get ext libraries
if(WINDOWS)
file(GLOB_RECURSE EXTLIB extlib/win32/*.lib)
set(LINK_LIBRARIES
${GLEW_GLEW_LIBRARY}
sfml-graphics
sfml-network
sfml-system
sfml-window)
elseif(MAC)
set(LINK_LIBRARIES
# enet
fmodex
fmodevent
freetype
GLEW
sfml-graphics
sfml-network
sfml-system
sfml-window
)
link_directories(${PROJECT_SOURCE_DIR}/extbin/osx)
elseif(LINUX)
set(LINK_LIBRARIES
dl
# enet
freetype
sfml-graphics
sfml-network
sfml-system
sfml-window
GLEW)
if(ARCH_32)
set(LINK_LIBRARIES ${LINK_LIBRARIES} fmodex fmodevent)
link_directories(${PROJECT_SOURCE_DIR}/extbin/linux32)
elseif(ARCH_64)
set(LINK_LIBRARIES ${LINK_LIBRARIES} fmodex64 fmodevent64)
link_directories(${PROJECT_SOURCE_DIR}/extbin/linux64)
endif()
endif()
set(LINK_LIBRARIES ${LINK_LIBRARIES} ${OPENGL_LIBRARIES})
# Build shared libary
file(GLOB_RECURSE LIBLT_SRC src/liblt/*.cpp)
add_library(lt SHARED ${LIBLT_SRC})
target_link_libraries(lt ${LINK_LIBRARIES} ${EXTLIB})
configure_output_dir(lt)
# Post-build step to copy DLLs to bin folder
if (MSVC)
file(GLOB_RECURSE RUNTIME_BINARIES extbin/win32/*.dll)
foreach(X ${RUNTIME_BINARIES})
add_custom_command (TARGET lt POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different
${X} $<TARGET_FILE_DIR:lt>)
endforeach(X)
endif()
# Build binaries
set(TARGETS
launch)
foreach(TARGET ${TARGETS})
add_executable(${TARGET} ${PROJECT_SOURCE_DIR}/src/${TARGET}/${TARGET}.cpp src/resources.rc)
target_link_libraries(${TARGET} ${LINK_LIBRARIES})
configure_output_dir(${TARGET})
endforeach(TARGET)
# Link dynamic targets to the shared lib
foreach(TARGET ${TARGETS})
target_link_libraries(${TARGET} lt)
endforeach(TARGET)
# Set target properties
if(WINDOWS)
# No exception handling
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHs")
# Multi-threaded compilation
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /fp:fast")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:SSE2")
# No libcmt warnings
set_target_properties(lt PROPERTIES LINK_FLAGS "/NODEFAULTLIB:libcmt")
foreach(TARGET ${EXECUTABLES})
set_target_properties(${TARGET} PROPERTIES LINK_FLAGS "/NODEFAULTLIB:libcmt")
endforeach(TARGET)
# The updater requires administrator privileges to run
# set_target_properties(updater PROPERTIES LINK_FLAGS "/level='requireAdministrator' /uiAccess='false'")
else()
# Gold linker
if (LINUX)
set(CMAKE_LINKER "/usr/bin/gold")
endif()
# No exception handling
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions")
# Enable C++0x features
add_definitions("-std=c++0x")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2 -g")
# Enable lots of warnings
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic -Wall -Wextra -Werror")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-invalid-offsetof")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-const-variable")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-parameter")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-function")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-variable")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-tautological-compare")
# Stop on errors
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wfatal-errors")
# set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wconversion")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-sign-conversion")
# Enable SSE / SSE2
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse -msse2")
endif()