CMakeLists.txt

CMAKE_POLICY(SET CMP0048 NEW)
#to be abe to use version
project(Hello 
LANGUAGES Fortran
VERSION 0.0.1.0)
cmake_minimum_required(VERSION 2.8.12)
set(AUTHOR "Alin M Elena")
set(AUTHOR_DETAILS "alin@elena.space")
set(DESCRIPTION "Hello World project cmake with Fortran example")
include(GNUInstallDirs)
include(FeatureSummary)
message(STATUS "Building prepareation for ${PROJECT_NAME} version: ${Hello_VERSION_MAJOR}.${Hello_VERSION_MINOR}.${Hello_VERSION_PATCH}.${Hello_VERSION_TWEAK}")
option (WITH_MYMATH "Build with my math implementation" ON) 
if (WITH_MYMATH)
  add_definitions("-DWITH_MYMATH")
  message(STATUS "Build with my math implementation" )
else()
  message(STATUS "Build without my math implementation" )
endif()
option(BUILD_SHARED_LIBS "Build shared libraries" ON)
option(BUILD_TESTING "Build with tests" ON)
option(BUILD_DOCS "Build with tests" ON)
if (${BUILD_TESTING})
  include(CTest)
endif()
#advance but may be useful
configure_file (
  "${PROJECT_SOURCE_DIR}/source/version.F90.cmake"
  "${PROJECT_SOURCE_DIR}/source/version.F90"
  )

set(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR})
set(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/${CMAKE_INSTALL_BINDIR})

add_subdirectory(source)
add_executable(hello source/hello.F90 source/version.F90)
target_include_directories(hello PRIVATE "${PROJECT_BINARY_DIR}/source")
target_link_libraries(hello ${Hello_LIBS})

#installation
install(TARGETS hello RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})

if(BUILD_DOCS)
  find_package(Doxygen REQUIRED)
  configure_file(${PROJECT_SOURCE_DIR}/cmake/Doxyfile.cmake ${PROJECT_BIN_DIR}Doxyfile)
  add_custom_target(docs
    ${DOXYGEN_EXECUTABLE} ${PROJECT_BINARY_DIR}/Doxyfile)
endif()

if (${BUILD_TESTING})
#testing this macro in big projects may go in its own file
macro (do_test arg result)
  add_test(HelloTest${arg} ${CMAKE_INSTALL_BINDIR}/hello ${arg})
  set_tests_properties (HelloTest${arg}
    PROPERTIES PASS_REGULAR_EXPRESSION ${result})
endmacro (do_test)

  do_test(36 " is[\ ].*6.00000000")
  do_test(0.0001 " is[\ ].*0.01000000")
endif()

feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)