Wellspring/CMakeLists.txt

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CMake
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cmake_minimum_required(VERSION 2.8.12)
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project(Wellspring C)
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option(BUILD_SHARED_LIBS "Build shared library" ON)
option(USE_SDL2 "Use SDL2" ON)
SET(LIB_MAJOR_VERSION "0")
SET(LIB_MINOR_VERSION "1")
SET(LIB_REVISION "0")
SET(LIB_VERSION "${LIB_MAJOR_VERSION}.${LIB_MINOR_VERSION}.${LIB_REVISION}")
# Build Type
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
# By default, we use Release
message(STATUS "Setting build type to 'Release' as none was specified.")
set(CMAKE_BUILD_TYPE "Release" CACHE
STRING "Choose the type of build." FORCE
)
# Set the possible values of build type for cmake-gui
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY
STRINGS "Debug" "Release" "RelWithDebInfo"
)
endif()
# Platform Flags
if(APPLE)
set(CMAKE_MACOSX_RPATH ON)
set(CMAKE_OSX_DEPLOYMENT_TARGET 10.9)
set(LOBJC "objc")
elseif(WIN32)
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# "Wellspring.dll", not "libWellspring.dll"
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set(CMAKE_SHARED_LIBRARY_PREFIX "")
endif()
if(UNIX)
set(CMAKE_SKIP_BUILD_RPATH TRUE)
set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
set(CMAKE_INSTALL_RPATH ${BIN_RPATH})
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH FALSE)
endif()
if(USE_SDL2)
add_definitions(-DUSE_SDL2)
endif()
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add_library(Wellspring
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#Public header
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include/Wellspring.h
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#Source
lib/stb_rect_pack.h
lib/stb_truetype.h
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src/Wellspring.c
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)
# Build flags
if(NOT MSVC)
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set_property(TARGET Wellspring PROPERTY COMPILE_FLAGS "-std=gnu99 -Wall -Wno-strict-aliasing -pedantic")
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endif()
# includes
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target_include_directories(Wellspring PUBLIC
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/lib>
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
)
# Soname
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set_target_properties(Wellspring PROPERTIES OUTPUT_NAME "Wellspring"
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VERSION ${LIB_VERSION}
SOVERSION ${LIB_MAJOR_VERSION}
)
# SDL2 Dependency
if(USE_SDL2)
if (DEFINED SDL2_INCLUDE_DIRS AND DEFINED SDL2_LIBRARIES)
message(STATUS "using pre-defined SDL2 variables SDL2_INCLUDE_DIRS and SDL2_LIBRARIES")
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target_include_directories(Wellspring PUBLIC "$<BUILD_INTERFACE:${SDL2_INCLUDE_DIRS}>")
target_link_libraries(Wellspring PUBLIC ${SDL2_LIBRARIES})
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else()
# Only try to autodetect if both SDL2 variables aren't explicitly set
find_package(SDL2 CONFIG)
if (TARGET SDL2::SDL2)
message(STATUS "using TARGET SDL2::SDL2")
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target_link_libraries(Wellspring PUBLIC SDL2::SDL2)
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elseif (TARGET SDL2)
message(STATUS "using TARGET SDL2")
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target_link_libraries(Wellspring PUBLIC SDL2)
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else()
message(STATUS "no TARGET SDL2::SDL2, or SDL2, using variables")
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target_include_directories(Wellspring PUBLIC "$<BUILD_INTERFACE:${SDL2_INCLUDE_DIRS}>")
target_link_libraries(Wellspring PUBLIC ${SDL2_LIBRARIES})
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endif()
endif()
endif()