cmake-modules/FindSerialport.cmake at master · stackforce/cmake-modules · GitHub

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## @code
##  ___ _____ _   ___ _  _____ ___  ___  ___ ___
## / __|_   _/_\ / __| |/ / __/ _ \| _ \/ __| __|
## \__ \ | |/ _ \ (__| ' <| _| (_) |   / (__| _|
## |___/ |_/_/ \_\___|_|\_\_| \___/|_|_\\___|___|
## embedded.connectivity.solutions.==============
## @endcode
##
## @file
## @copyright  STACKFORCE GmbH, Heitersheim, Germany, http://www.stackforce.de
## @author     STACKFORCE
## @author     Adrian Antonana <adrian.antonana@stackforce.de>
## @brief      Libserialport cmake find module
##
## This file is part of the STACKFORCE CMake modules collection
## (below "sf cmake modules collection").
##
## sf cmake modules collection is free software: you can redistribute it
## and/or modify it under the terms of the GNU Affero General Public License
## as published by the Free Software Foundation, either version 3 of the
## License, or (at your option) any later version.
##
## sf cmake modules collection is distributed in the hope that it will be
## useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU Affero General Public License for more details.
##
## You should have received a copy of the GNU Affero General Public License
## along with sf cmake modules collection.
## If not, see <http://www.gnu.org/licenses/>.

cmake_minimum_required(VERSION 3.6)

include(ExternalProject)

# try to find the serialport library
set(SERIALPORT_INSTALL_DIR ${PROJECT_BINARY_DIR}/serialport-prefix)
set(SERIALPORT_LIBS_DIR  ${SERIALPORT_INSTALL_DIR}/src/serialport/.libs)
set(SERIALPORT_HEADERS_DIR  ${SERIALPORT_INSTALL_DIR}/src/serialport)

find_library(SERIALPORT_LIB serialport ${SERIALPORT_LIBS_DIR})

# extra serial port configuration parameters
set(SERIALPORT_CONFIG_PARAMS CFLAGS=-DNO_PORT_METADATA)

if(CMAKE_CROSSCOMPILING)
    list(APPEND SERIALPORT_CONFIG_PARAMS --host=${COMPILER_PREFIX})
endif()

if(WIN32)
    list(APPEND SERIALPORT_CONFIG_PARAMS --disable-shared)
endif()

# if the library is not found download and build it
if(NOT SERIALPORT_LIB)

    message(STATUS "Serialport: Not found")

    if(WIN32)
        message(STATUS "Serialport: Project will be downloaded and built for Windows.")

        ExternalProject_Add(serialport
            GIT_REPOSITORY "https://github.com/stackforce/libserialport.git"
            GIT_TAG "e4bb554e406c1641bf93745d79b9a9c54bd4dce6"
            UPDATE_DISCONNECTED 1
            CONFIGURE_COMMAND ./autogen.sh && ./configure ${SERIALPORT_CONFIG_PARAMS}
            BUILD_COMMAND make
            BUILD_IN_SOURCE 1
            BUILD_ALWAYS 0
            INSTALL_COMMAND ""
        )
    else()
        message(STATUS "Serialport: Project will be downloaded and built Unix.")

        ExternalProject_Add(serialport
            GIT_REPOSITORY "https://github.com/stackforce/libserialport.git"
            GIT_TAG "0c3f38b81b8968d78806a7a41ed351a870882b5e"
            UPDATE_DISCONNECTED 1
            CONFIGURE_COMMAND ./autogen.sh && ./configure ${SERIALPORT_CONFIG_PARAMS}
            BUILD_COMMAND make
            BUILD_IN_SOURCE 1
            BUILD_ALWAYS 0
            INSTALL_COMMAND ""
        )
    endif()

    ExternalProject_Get_Property(serialport
        source_dir binary_dir build_command configure_command
    )

    message(STATUS "Serialport source path: ${source_dir}")
    message(STATUS "Serialport build path: ${binary_dir}")
    message(STATUS "Serialport library path: ${SERIALPORT_LIBS_DIR}")
    message(STATUS "Serialport configure command: ${configure_command}")

    add_custom_target(libserialport-bootstrap
        COMMAND ${CMAKE_COMMAND} ${CMAKE_SOURCE_DIR}
        WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
        DEPENDS serialport
    )
else()
    message(STATUS "Serialport: Found")
    message(STATUS "Serialport source path: ${source_dir}")
    message(STATUS "Serialport build path: ${binary_dir}")
    message(STATUS "Serialport library path: ${SERIALPORT_LIBS_DIR}")
    add_custom_target(libserialport-bootstrap)
endif()

# add the static and dynamic libraries
add_library(libserialport IMPORTED SHARED GLOBAL)
add_library(libserialport-static IMPORTED STATIC GLOBAL)
add_dependencies(libserialport serialport-bootstrap)
add_dependencies(libserialport-static serialport-bootstrap)

if(NOT WIN32)
    set_target_properties(libserialport PROPERTIES
        IMPORTED_LOCATION "${SERIALPORT_LIBS_DIR}/libserialport.so"
        INTERFACE_INCLUDE_DIRECTORIES "${SERIALPORT_HEADERS_DIR}"
    )
endif()

set_target_properties(libserialport-static PROPERTIES
    IMPORTED_LOCATION "${SERIALPORT_LIBS_DIR}/libserialport.a"
    INTERFACE_INCLUDE_DIRECTORIES "${SERIALPORT_HEADERS_DIR}"
)