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cmake_minimum_required(VERSION 3.3)
project(Tutorial)
# control where the static and shared libraries are built so that on windows
# we don't need to tinker with the path to run the executable
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}")
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}")
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED True)
option(BUILD_SHARED_LIBS "Build using shared libraries" ON)
# the version number.
set(Tutorial_VERSION_MAJOR 1)
set(Tutorial_VERSION_MINOR 0)
if(APPLE)
set(CMAKE_INSTALL_RPATH "@executable_path/../lib")
elseif(UNIX)
set(CMAKE_INSTALL_RPATH "$ORIGIN/../lib")
endif()
# configure a header file to pass the version number only
configure_file(
"${PROJECT_SOURCE_DIR}/TutorialConfig.h.in"
"${PROJECT_BINARY_DIR}/TutorialConfig.h"
)
# add the MathFunctions library
add_subdirectory(MathFunctions)
# add the executable
add_executable(Tutorial tutorial.cxx)
target_link_libraries(Tutorial MathFunctions)
# add the binary tree to the search path for include files
# so that we will find TutorialConfig.h
target_include_directories(Tutorial PUBLIC
"${PROJECT_BINARY_DIR}"
)
# add the install targets
install(TARGETS Tutorial DESTINATION bin)
install(FILES "${PROJECT_BINARY_DIR}/TutorialConfig.h"
DESTINATION include
)
# enable testing
enable_testing()
# does the application run
add_test(NAME Runs COMMAND Tutorial 25)
# does the usage message work?
add_test(NAME Usage COMMAND Tutorial)
set_tests_properties(Usage
PROPERTIES PASS_REGULAR_EXPRESSION "Usage:.*number"
)
# define a function to simplify adding tests
function(do_test target arg result)
add_test(NAME Comp${arg} COMMAND ${target} ${arg})
set_tests_properties(Comp${arg}
PROPERTIES PASS_REGULAR_EXPRESSION ${result}
)
endfunction(do_test)
# do a bunch of result based tests
do_test(Tutorial 4 "4 is 2")
do_test(Tutorial 9 "9 is 3")
do_test(Tutorial 5 "5 is 2.236")
do_test(Tutorial 7 "7 is 2.645")
do_test(Tutorial 25 "25 is 5")
do_test(Tutorial -25 "-25 is [-nan|nan|0]")
do_test(Tutorial 0.0001 "0.0001 is 0.01")
include(InstallRequiredSystemLibraries)
set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/License.txt")
set(CPACK_PACKAGE_VERSION_MAJOR "${Tutorial_VERSION_MAJOR}")
set(CPACK_PACKAGE_VERSION_MINOR "${Tutorial_VERSION_MINOR}")
include(CPack)
# install the configuration targets
install(EXPORT MathFunctionsTargets
FILE MathFunctionsTargets.cmake
DESTINATION lib/cmake/MathFunctions
)
include(CMakePackageConfigHelpers)
# generate the config file that is includes the exports
configure_package_config_file(${CMAKE_CURRENT_SOURCE_DIR}/Config.cmake.in
"${CMAKE_CURRENT_BINARY_DIR}/MathFunctionsConfig.cmake"
INSTALL_DESTINATION "lib/cmake/example"
NO_SET_AND_CHECK_MACRO
NO_CHECK_REQUIRED_COMPONENTS_MACRO
)
# generate the version file for the config file
write_basic_package_version_file(
"${CMAKE_CURRENT_BINARY_DIR}/MathFunctionsConfigVersion.cmake"
VERSION "${Tutorial_VERSION_MAJOR}.${Tutorial_VERSION_MINOR}"
COMPATIBILITY AnyNewerVersion
)
# install the configuration file
install(FILES
${CMAKE_CURRENT_BINARY_DIR}/MathFunctionsConfig.cmake
DESTINATION lib/cmake/MathFunctions
)
# generate the export targets for the build tree
# needs to be after the install(TARGETS ) command
export(EXPORT MathFunctionsTargets
FILE "${CMAKE_CURRENT_BINARY_DIR}/MathFunctionsTargets.cmake"
)
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