Add Project Interface Library + PackageProject install configuration

Author: jonasbhjulstad

CMakeLists.txt

@@ -2,9 +2,7 @@ cmake_minimum_required(VERSION 3.9)
 
 # set the project name and version
 project(CXXGraph VERSION 4.1.0)
-
-configure_file(CXXGraphConfig.h.in ${PROJECT_SOURCE_DIR}/include/CXXGraph/CXXGraphConfig.h)
-
+set(PROJECT_NAMESPACE ${PROJECT_NAME})
 # specify the C++ standard
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED True)
@@ -56,4 +54,45 @@ add_subdirectory(test)
 add_subdirectory(benchmark)
 add_subdirectory(examples)
 
-install(DIRECTORY ${PROJECT_SOURCE_DIR}/include/ DESTINATION include)
+include(${CPM_DOWNLOAD_LOCATION})
+add_library(${PROJECT_NAME} INTERFACE)
+target_include_directories(${PROJECT_NAME} INTERFACE $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include> $<INSTALL_INTERFACE:include/${PROJECT_NAME}-${PROJECT_VERSION}>)
+CPMAddPackage("gh:TheLartians/PackageProject.cmake@1.6.0")
+
+packageProject(
+  # the name of the target to export
+  NAME ${PROJECT_NAME}
+  # the version of the target to export
+  VERSION ${PROJECT_VERSION}
+  # a temporary directory to create the config files
+  BINARY_DIR ${PROJECT_BINARY_DIR}
+  # location of the target's public headers
+  INCLUDE_DIR ${PROJECT_SOURCE_DIR}/include
+  # should match the target's INSTALL_INTERFACE include directory
+  INCLUDE_DESTINATION include/${PROJECT_NAME}-${PROJECT_VERSION}
+  # (optional) option to install only header files with matching pattern
+  INCLUDE_HEADER_PATTERN "*.h *.hpp"
+  # semicolon separated list of the project's dependencies
+  DEPENDENCIES ""
+  # (optional) create a header containing the version info
+  # Note: that the path to headers should be lowercase
+  VERSION_HEADER "${PROJECT_NAME}/version.h"
+  # (optional) create a export header using GenerateExportHeader module
+  EXPORT_HEADER "${PROJECT_NAME}/export.h"
+  # (optional) install your library with a namespace (Note: do NOT add extra '::')
+  NAMESPACE ${PROJECT_NAMESPACE}
+  # (optional) define the project's version compatibility, defaults to `AnyNewerVersion`
+  # supported values: `AnyNewerVersion|SameMajorVersion|SameMinorVersion|ExactVersion`
+  COMPATIBILITY AnyNewerVersion
+  # (optional) option to disable the versioning of install destinations
+  DISABLE_VERSION_SUFFIX YES
+  # (optional) option to ignore target architecture for package resolution
+  # defaults to YES for header only (i.e. INTERFACE) libraries
+  ARCH_INDEPENDENT YES
+  # (optional) option to generate CPack variables
+  CPACK YES
+  # (optional) relative install directory for runtimes: bins, libs, archives 
+  # by default libs will be installed to <...>/lib/<packagename-version>/
+  # / - means relative to <...>/lib, i.e. install libs to <...>/lib/, bins to <...>/bin/, etc
+  RUNTIME_DESTINATION /
+)