CMakeLists.txt

cmake_minimum_required(VERSION 3.5 FATAL_ERROR)

# ---- Project ----

project(EasyIterator 
  VERSION 1.4
  LANGUAGES CXX
)

# ---- Include guards ----

if(PROJECT_SOURCE_DIR STREQUAL PROJECT_BINARY_DIR)
    message(FATAL_ERROR "In-source builds not allowed. Please make a new directory (called a build directory) and run CMake from there.")
endif()

# ---- Add dependencies via CPM ----
# see https://github.com/TheLartians/CPM.cmake for more info

include(cmake/CPM.cmake)

# PackageProject.cmake will be used to make our target installable
CPMAddPackage(
  NAME PackageProject.cmake
  GITHUB_REPOSITORY TheLartians/PackageProject.cmake
  VERSION 1.0
)

# ---- Header target ----

FILE(GLOB_RECURSE headers CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/include/*.h")
add_library(EasyIterator-headers EXCLUDE_FROM_ALL ${headers})
SET_TARGET_PROPERTIES(EasyIterator-headers PROPERTIES LINKER_LANGUAGE CXX)

# ---- Create library ----

add_library(EasyIterator INTERFACE)

target_compile_options(EasyIterator INTERFACE "$<$<BOOL:${MSVC}>:/permissive->")
set_target_properties(EasyIterator PROPERTIES INTERFACE_COMPILE_FEATURES cxx_std_17)

target_include_directories(EasyIterator
  INTERFACE 
    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
    $<INSTALL_INTERFACE:include/${PROJECT_NAME}-${PROJECT_VERSION}>
)

# ---- Create an installable target ----

packageProject(
  NAME ${PROJECT_NAME}
  VERSION ${PROJECT_VERSION}
  BINARY_DIR ${PROJECT_BINARY_DIR}
  INCLUDE_DIR ${PROJECT_SOURCE_DIR}/include
  INCLUDE_DESTINATION include/${PROJECT_NAME}-${PROJECT_VERSION}
)