cmake_minimum_required (VERSION 3.1)

####
# General configuration
####
# Option whether to create deb package
option(BUILD_DEB_PACKAGE "Enables creating .deb package" ON)
# Option whether to compile for raspberry-pi (default: ON, for the compatibility)
option(CROSS_COMPILE "Cross compile for Raspbian" ON)
option(BUILD_EXPERIMENTAL "Build experimental test program" OFF)

if(NOT BUILD_NUMBER)
	set(BUILD_NUMBER 9999)
endif()

project(VC4CLStdLib VERSION 0.4.${BUILD_NUMBER})


#Include headers in the project structure
file( GLOB HDRS "${PROJECT_SOURCE_DIR}/include/*.h")
add_library(VC4CLStdLib STATIC ${HDRS})
set_target_properties(VC4CLStdLib PROPERTIES LINKER_LANGUAGE C)

##
# Installation targets
##
# Adds the public headers to the target, so they are exported
target_include_directories(VC4CLStdLib PUBLIC $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>  $<INSTALL_INTERFACE:include/vc4cl-stdlib>)
# Creates the install target for the headers
install(DIRECTORY "${PROJECT_SOURCE_DIR}/include/" DESTINATION include/vc4cl-stdlib FILES_MATCHING PATTERN "*.h")
# Adds custom uninstall command
add_custom_target(uninstall "${CMAKE_COMMAND}" -P "cmake_uninstall.cmake")

if (BUILD_EXPERIMENTAL)
    add_subdirectory(experimental)
endif (BUILD_EXPERIMENTAL)

####
# Building package
####
if (BUILD_DEB_PACKAGE)
	message(STATUS "build deb package...")

	set(CPACK_GENERATOR "DEB")
	set(CPACK_PACKAGING_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}")
	set(CPACK_PACKAGE_NAME "vc4cl-stdlib")
	string(TIMESTAMP BUILD_TIMESTAMP "%Y-%m-%d")
	set(CPACK_PACKAGE_VERSION "${PROJECT_VERSION}-${BUILD_TIMESTAMP}")
        if (CROSS_COMPILE)
	  set(CPACK_DEBIAN_PACKAGE_ARCHITECTURE "armhf")
        else()
          set(CPACK_DEBIAN_PACKAGE_ARCHITECTURE "amd64")
        endif()
	set(CPACK_PACKAGE_VENDOR "doe300")
	set(CPACK_PACKAGE_CONTACT "doe300@web.de")
	set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "OpenCL C headers for the VC4CL implementation (raspberrypi only)")
	set(CPACK_DEBIAN_PACKAGE_HOMEPAGE "https://github.com/doe300/VC4CLStdLib")
	set(CPACK_PACKAGE_FILE_NAME "vc4cl-stdlib-0.4-Linux")
	include(CPack)
endif (BUILD_DEB_PACKAGE)