cpp-jwt/CMakeLists.txt
Carlos Gomes Martinho 79d2c49b32
build: add add_library alias to cmake
this makes it possible to do:

```cmake
find_package(cpp-jwt REQUIRED)
add_executable(main main.cpp)
target_link_libraries(main cpp-jwt::cpp-jwt)
```
2020-03-18 19:48:52 +01:00

96 lines
3.3 KiB
CMake

cmake_minimum_required(VERSION 3.5.0)
project(cpp-jwt)
option(CPP_JWT_BUILD_EXAMPLES "build examples" ON)
option(CPP_JWT_BUILD_TESTS "build tests" ON)
option(CPP_JWT_USE_VENDORED_NLOHMANN_JSON "use vendored json header" ON)
list(APPEND CMAKE_MODULE_PATH ${CMAKE_BINARY_DIR})
list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_BINARY_DIR})
# only set compiler flags if we are the main project, otherwise let the main
# project decide on the flags
if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}"
MATCHES "Clang")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
endif()
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
endif()
endif()
find_package(OpenSSL REQUIRED)
if(NOT CPP_JWT_USE_VENDORED_NLOHMANN_JSON)
find_package(nlohmann_json REQUIRED)
endif()
# ##############################################################################
# LIBRARY
# ##############################################################################
add_library(${PROJECT_NAME} INTERFACE)
target_include_directories(
${PROJECT_NAME}
INTERFACE $<BUILD_INTERFACE:${${PROJECT_NAME}_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
${OpenSSL_INCLUDE_DIR})
target_link_libraries(${PROJECT_NAME} INTERFACE ${OpenSSL_LIBRARIES})
if(NOT CPP_JWT_USE_VENDORED_NLOHMANN_JSON)
target_link_libraries(${PROJECT_NAME} INTERFACE nlohmann_json::nlohmann_json)
else()
add_definitions(-DCPP_JWT_USE_VENDORED_NLOHMANN_JSON)
endif()
target_compile_features(${PROJECT_NAME} INTERFACE cxx_std_14)
add_library(${PROJECT_NAME}::${PROJECT_NAME} ALIAS ${PROJECT_NAME})
# ##############################################################################
# TESTS
# ##############################################################################
if(CPP_JWT_BUILD_TESTS)
find_package(GTest REQUIRED)
include_directories(${GTEST_INCLUDE_DIRS})
enable_testing()
# Recurse into the "Hello" and "Demo" subdirectories. This does not actually
# cause another cmake executable to run. The same process will walk through
# the project's entire directory structure.
add_subdirectory(tests)
endif()
# ##############################################################################
# EXAMPLES
# ##############################################################################
if(CPP_JWT_BUILD_EXAMPLES)
add_subdirectory(examples)
endif()
# ##############################################################################
# INSTALL
# ##############################################################################
include(GNUInstallDirs)
install(
TARGETS ${PROJECT_NAME}
EXPORT ${PROJECT_NAME}_Targets
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/jwt/detail
DESTINATION include/jwt)
install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/jwt/impl
DESTINATION include/jwt)
install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/jwt/json
DESTINATION include/jwt)
install(
DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/jwt/
DESTINATION include/jwt
FILES_MATCHING
PATTERN "*.hpp")