units/CMakeLists.txt at main · bolderflight/units · GitHub

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cmake_minimum_required(VERSION 3.14)
# Project information
project(Units
  VERSION 5.0.0
  DESCRIPTION "Constants and unit conversions."
  LANGUAGES CXX
)
# Add the library target
add_library(units
  src/units.h
  src/constants.h
  src/convacc.h
  src/convang.h
  src/convangacc.h
  src/convangvel.h
  src/convdensity.h
  src/convforce.h
  src/convlength.h
  src/convmass.h
  src/convpres.h
  src/convtemp.h
  src/convvel.h
  src/convacc.cpp
  src/convang.cpp
  src/convangacc.cpp
  src/convangvel.cpp
  src/convdensity.cpp
  src/convforce.cpp
  src/convlength.cpp
  src/convmass.cpp
  src/convpres.cpp
  src/convtemp.cpp
  src/convvel.cpp
)
# Setup include directories
target_include_directories(units INTERFACE src/)

# Example and unit testing if this project is built separately
if (PROJECT_NAME STREQUAL CMAKE_PROJECT_NAME)
  # Add the example target
  add_executable(units_example examples/cmake/units_example.cc)
  # Add the includes
  target_include_directories(units_example PUBLIC
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
    $<INSTALL_INTERFACE:include>
  )
  # Link libraries to the test target
  target_link_libraries(units_example
    PRIVATE
      units
  )
  # Fetch google test
  include(FetchContent)
  FetchContent_Declare(
    googletest
    GIT_REPOSITORY https://github.com/google/googletest.git
    GIT_TAG release-1.12.1
  )
  FetchContent_MakeAvailable(googletest)
  enable_testing()
  include(GoogleTest)
  # Add the test target
  add_executable(units_test tests/units_test.cc)
  # Add the includes
  target_include_directories(units_test PUBLIC
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
    $<INSTALL_INTERFACE:include>
  )
  # Link libraries to the test target
  target_link_libraries(units_test
    PRIVATE
      units
      gtest_main
      gtest
      gmock
  )
  # Discover unit tests
  gtest_discover_tests(units_test)
endif()