CMakeLists.txt

# Copyright 2011-2020 Free Software Foundation, Inc.
#
# This file was generated by gr_modtool, a tool from the GNU Radio framework
# This file is a part of gr-m17
#
# SPDX-License-Identifier: GPL-3.0-or-later
#

########################################################################
# Project setup
########################################################################
cmake_minimum_required(VERSION 3.8)
project(gr-m17 CXX C)
enable_testing()

# Install to PyBOMBS target prefix if defined
if(DEFINED ENV{PYBOMBS_PREFIX})
    set(CMAKE_INSTALL_PREFIX $ENV{PYBOMBS_PREFIX})
    message(STATUS "PyBOMBS installed GNU Radio. Setting CMAKE_INSTALL_PREFIX to $ENV{PYBOMBS_PREFIX}")
endif()

# Select the release build type by default to get optimization flags
if(NOT CMAKE_BUILD_TYPE)
   set(CMAKE_BUILD_TYPE "Release")
   message(STATUS "Build type not specified: defaulting to release.")
endif(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE} CACHE STRING "")

# Make sure our local CMake Modules path comes first
list(INSERT CMAKE_MODULE_PATH 0 ${CMAKE_SOURCE_DIR}/cmake/Modules)

# Set the version information here
set(VERSION_MAJOR 1)
set(VERSION_API   0)
set(VERSION_ABI   0)
set(VERSION_PATCH git)

cmake_policy(SET CMP0011 NEW)

# Enable generation of compile_commands.json for code completion engines
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

########################################################################
# Compiler specific setup
########################################################################
if((CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR
    CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
    AND NOT WIN32)
    #http://gcc.gnu.org/wiki/Visibility
    add_definitions(-fvisibility=hidden)
endif()

IF(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
    SET(CMAKE_CXX_STANDARD 17)
ELSEIF(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
    SET(CMAKE_CXX_STANDARD 17)
ELSEIF(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
    SET(CMAKE_CXX_STANDARD 17)
ELSE()
    message(WARNING "C++ standard could not be set because compiler is not GNU, Clang or MSVC.")
ENDIF()

IF(CMAKE_C_COMPILER_ID STREQUAL "GNU")
    SET(CMAKE_C_STANDARD 11)
ELSEIF(CMAKE_C_COMPILER_ID MATCHES "Clang")
    SET(CMAKE_C_STANDARD 11)
ELSEIF(CMAKE_C_COMPILER_ID STREQUAL "MSVC")
    SET(CMAKE_C_STANDARD 11)
ELSE()
    message(WARNING "C standard could not be set because compiler is not GNU, Clang or MSVC.")
ENDIF()

########################################################################
# Install directories
########################################################################
include(FindPkgConfig)
find_package(Gnuradio "3.9" REQUIRED)
include(GrVersion)

include(GrPlatform) #define LIB_SUFFIX

if(NOT CMAKE_MODULES_DIR)
  set(CMAKE_MODULES_DIR lib${LIB_SUFFIX}/cmake)
endif(NOT CMAKE_MODULES_DIR)

set(GR_INCLUDE_DIR      include/m17)
set(GR_CMAKE_DIR        ${CMAKE_MODULES_DIR}/m17)
set(GR_PKG_DATA_DIR     ${GR_DATA_DIR}/${CMAKE_PROJECT_NAME})
set(GR_PKG_DOC_DIR      ${GR_DOC_DIR}/${CMAKE_PROJECT_NAME})
set(GR_PKG_CONF_DIR     ${GR_CONF_DIR}/${CMAKE_PROJECT_NAME}/conf.d)
set(GR_PKG_LIBEXEC_DIR  ${GR_LIBEXEC_DIR}/${CMAKE_PROJECT_NAME})

########################################################################
# On Apple only, set install name and use rpath correctly, if not already set
########################################################################
if(APPLE)
    if(NOT CMAKE_INSTALL_NAME_DIR)
        set(CMAKE_INSTALL_NAME_DIR
            ${CMAKE_INSTALL_PREFIX}/${GR_LIBRARY_DIR} CACHE
            PATH "Library Install Name Destination Directory" FORCE)
    endif(NOT CMAKE_INSTALL_NAME_DIR)
    if(NOT CMAKE_INSTALL_RPATH)
        set(CMAKE_INSTALL_RPATH
            ${CMAKE_INSTALL_PREFIX}/${GR_LIBRARY_DIR} CACHE
            PATH "Library Install RPath" FORCE)
    endif(NOT CMAKE_INSTALL_RPATH)
    if(NOT CMAKE_BUILD_WITH_INSTALL_RPATH)
        set(CMAKE_BUILD_WITH_INSTALL_RPATH ON CACHE
            BOOL "Do Build Using Library Install RPath" FORCE)
    endif(NOT CMAKE_BUILD_WITH_INSTALL_RPATH)
endif(APPLE)

########################################################################
# Find gnuradio build dependencies
########################################################################
find_package(Doxygen)
find_package(m17cxx REQUIRED)
if(${m17cxx_FOUND})
    message(STATUS "Found m17cxx")
    message(STATUS "  M17 Library version: " ${m17cxx_VERSION})
    message(STATUS "  M17 Library location: " ${m17cxx_DIR})
else(${m17cxx_FOUND})
    message(FATAL_ERROR "Could not locate m17cxx")
endif()

########################################################################
# PyBind11 Related
########################################################################

find_package(pybind11 REQUIRED)
execute_process(
    COMMAND "${PYTHON_EXECUTABLE}" -c
    "try:\n import numpy\n import os\n inc_path = numpy.get_include()\n if os.path.exists(os.path.join(inc_path, 'numpy', 'arrayobject.h')):\n  print(inc_path, end='')\nexcept:\n pass"
    OUTPUT_VARIABLE PYTHON_NUMPY_INCLUDE_DIR)
# format path in CMake-style for consistency with other path variables
# (a consistent style helps conda builds by using the same path separators)
file(TO_CMAKE_PATH "${PYTHON_NUMPY_INCLUDE_DIR}" PYTHON_NUMPY_INCLUDE_DIR)

########################################################################
# Setup doxygen option
########################################################################
if(DOXYGEN_FOUND)
    option(ENABLE_DOXYGEN "Build docs using Doxygen" ON)
else(DOXYGEN_FOUND)
    option(ENABLE_DOXYGEN "Build docs using Doxygen" OFF)
endif(DOXYGEN_FOUND)

########################################################################
# Create uninstall target
########################################################################
configure_file(
    ${CMAKE_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in
    ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake
@ONLY)

add_custom_target(uninstall
    ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake
    )

########################################################################
# Add subdirectories
########################################################################
add_subdirectory(include/m17)
add_subdirectory(lib)
add_subdirectory(apps)
add_subdirectory(docs)
# NOTE: manually update below to use GRC to generate C++ flowgraphs w/o python
if(ENABLE_PYTHON)
  message(STATUS "PYTHON and GRC components are enabled")
  add_subdirectory(python)
  add_subdirectory(grc)
else(ENABLE_PYTHON)
  message(STATUS "PYTHON and GRC components are disabled")
endif(ENABLE_PYTHON)

########################################################################
# Install cmake search helper for this library
########################################################################

install(FILES cmake/Modules/m17Config.cmake
    DESTINATION ${CMAKE_MODULES_DIR}/m17
)