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#
# Copyright 2017-2018 Ettus Research, a National Instruments Company
#
# SPDX-License-Identifier: GPL-3.0-or-later
#

cmake_minimum_required(VERSION 3.1)
project(MPM C CXX) # Also has Python, but CMake can take care of that later
# Set the default value for CMAKE_INSTALL_PREFIX to /usr
if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
    set(CMAKE_INSTALL_PREFIX "/usr"
        CACHE
        PATH
        "Default installation path for MPM"
        FORCE
    )
endif(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)

list(INSERT CMAKE_MODULE_PATH 0 ${CMAKE_SOURCE_DIR}/cmake/Modules)
set(UHD_HOST_ROOT ${CMAKE_SOURCE_DIR}/../host)
########################################################################
# Setup Python API
########################################################################
set(PYTHON_ADDITIONAL_VERSIONS 3.4 3.5)
find_package(PythonInterp 3 REQUIRED)
find_package(PythonLibs 3 REQUIRED)
# Now, we can also include CMake modules from UHD:
list(INSERT CMAKE_MODULE_PATH 0 ${UHD_HOST_ROOT}/cmake/Modules)


########################################################################
# Version Information
########################################################################
include(MPMVersion)

########################################################################
# useful macros
########################################################################
include(MPMComponent) # enable components

macro(USRP_PERIPHS_APPEND_SOURCES)
    set(usrp_periphs_sources ${usrp_periphs_sources} PARENT_SCOPE)
    list(APPEND usrp_periphs_sources ${ARGV})
endmacro(USRP_PERIPHS_APPEND_SOURCES)

macro(USRP_PERIPHS_APPEND_OBJECTS)
    set(usrp_periphs_objects ${usrp_periphs_objects} PARENT_SCOPE)
    foreach(arg ${ARGV})
        list(APPEND usrp_periphs_objects $<TARGET_OBJECTS:${arg}>)
    endforeach(arg)
    set(usrp_periphs_objects ${usrp_periphs_objects} PARENT_SCOPE)
endmacro(USRP_PERIPHS_APPEND_OBJECTS)

macro(USRP_PERIPHS_ADD_OBJECT name)
  add_library(${name} OBJECT ${ARGN})
  set_property(TARGET ${name} PROPERTY POSITION_INDEPENDENT_CODE ON)
  USRP_PERIPHS_APPEND_OBJECTS(${name})
endmacro(USRP_PERIPHS_ADD_OBJECT)

########################################################################
# Setup Boost
########################################################################
message(STATUS "")
message(STATUS "Configuring Boost C++ Libraries...")
set(BOOST_REQUIRED_COMPONENTS
  system
  python3
)

if(MINGW)
    list(APPEND BOOST_REQUIRED_COMPONENTS thread_win32)
else()
    list(APPEND BOOST_REQUIRED_COMPONENTS thread)
endif()

if(UNIX AND NOT BOOST_ROOT AND EXISTS "/usr/lib64")
    list(APPEND BOOST_LIBRARYDIR "/usr/lib64") #fedora 64-bit fix
endif(UNIX AND NOT BOOST_ROOT AND EXISTS "/usr/lib64")

if(MSVC)
    set(BOOST_ALL_DYN_LINK "${BOOST_ALL_DYN_LINK}" CACHE BOOL "boost enable dynamic linking")
    if(BOOST_ALL_DYN_LINK)
        add_definitions(-DBOOST_ALL_DYN_LINK) #setup boost auto-linking in msvc
    else(BOOST_ALL_DYN_LINK)
        set(BOOST_REQUIRED_COMPONENTS) #empty components list for static link
    endif(BOOST_ALL_DYN_LINK)
endif(MSVC)

set(Boost_ADDITIONAL_VERSIONS
    "1.56.0" "1.56" "1.57" "1.57" "1.58" "1.59" "1.60" "1.61" "1.62" "1.63"
    "1.64"
)
find_package(Boost 1.53 COMPONENTS ${BOOST_REQUIRED_COMPONENTS})

include_directories(${Boost_INCLUDE_DIRS})
link_directories(${Boost_LIBRARY_DIRS})

message(STATUS "Boost include directories: ${Boost_INCLUDE_DIRS}")
message(STATUS "Boost library directories: ${Boost_LIBRARY_DIRS}")
message(STATUS "Boost libraries: ${Boost_LIBRARIES}")


########################################################################
# Install Dirs
########################################################################
#when the library suffix should be 64 (applies to redhat linux family)
if(NOT DEFINED LIB_SUFFIX AND REDHAT AND CMAKE_SYSTEM_PROCESSOR MATCHES "64$")
    set(LIB_SUFFIX 64)
endif()
if(CMAKE_INSTALL_LIBDIR MATCHES lib64)
    set(LIB_SUFFIX 64)
endif()

set(LIB_SUFFIX ${LIB_SUFFIX} CACHE STRING "lib directory suffix")
set(RUNTIME_DIR bin)
set(LIBRARY_DIR lib${LIB_SUFFIX})
set(INCLUDE_DIR include)
set(PKG_DATA_DIR share/mpm)
if(NOT DEFINED PKG_LIB_DIR)
    set(PKG_LIB_DIR ${LIBRARY_DIR}/mpm)
endif()
set(PKG_DOC_DIR share/doc/mpm)
set(PKG_MAN_DIR share/man/man1)

########################################################################
# Setup library configuration
########################################################################
set(CMAKE_CXX_STANDARD 14)
include(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-Wno-psabi" _has_no_psabi)
if(_has_no_psabi)
    message(STATUS "Disabling psABI warnings.")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-psabi")
endif(_has_no_psabi)
set(MPM_ALL_DEVICES n3xx e320 tests)
set(MPM_DEVICE "n3xx" CACHE STRING "Choose an MPM device to build")
set_property(CACHE MPM_DEVICE PROPERTY STRINGS ${MPM_ALL_DEVICES})
# Validate MPM_DEVICE
list(FIND MPM_ALL_DEVICES ${MPM_DEVICE} mpm_device_check)
if(mpm_device_check EQUAL -1)
    message(FATAL_ERROR "MPM_DEVICE must be one of ${MPM_ALL_DEVICES}! \
        Specify -DMPM_DEVICE=<device> on the command line or set MPM_DEVICE using a CMake GUI.")
endif()

# Request required components for MPM_DEVICE
if(MPM_DEVICE STREQUAL "n3xx")
    set(ENABLE_MYKONOS ON)
    set(ENABLE_MAGNESIUM ON)
elseif(MPM_DEVICE STREQUAL "e320")
    set(ENABLE_E320 ON)
endif()

MPM_REGISTER_COMPONENT("LibMPM" ENABLE_LIBMPM ON "Boost_FOUND" OFF ON)
MPM_REGISTER_COMPONENT("Mykonos" ENABLE_MYKONOS ON "ENABLE_LIBMPM" OFF OFF)
MPM_REGISTER_COMPONENT("Magnesium" ENABLE_MAGNESIUM ON "ENABLE_MYKONOS" OFF OFF)
MPM_REGISTER_COMPONENT("E320" ENABLE_E320 ON "ENABLE_LIBMPM" OFF OFF)

add_subdirectory(include)
include_directories(
    ${CMAKE_CURRENT_SOURCE_DIR}/include
    ${CMAKE_BINARY_DIR}/include
    ${UHD_HOST_ROOT}/include
)

add_subdirectory(lib)

message("usrp_periphs objects: ${usrp_periphs_objects}")
add_library(usrp-periphs SHARED ${usrp_periphs_objects})
target_link_libraries(usrp-periphs
    udev
    ${Boost_LIBRARIES}
)

if(WIN32)
    set(DESTINATION_KEYWORD RUNTIME)
else()
    set(DESTINATION_KEYWORD LIBRARY)
endif()
install(TARGETS usrp-periphs ${DESTINATION_KEYWORD} DESTINATION ${LIBRARY_DIR} COMPONENT libraries)

# TODO: Come up with a versioning scheme for the MPM ABI. Not high priority
# though... we're the only ones linking against that.
set_target_properties(usrp-periphs PROPERTIES VERSION "${MPM_VERSION_MAJOR}.${MPM_VERSION_API}.${MPM_VERSION_ABI}")
set_target_properties(usrp-periphs PROPERTIES SOVERSION ${MPM_VERSION_MAJOR})

add_subdirectory(python)
add_subdirectory(tools)
add_subdirectory(systemd)

########################################################################
# Print Summary
########################################################################
if(MPM_VERSION_DEVEL AND NOT MPM_GIT_BRANCH STREQUAL "maint")
    message(STATUS "******************************************************")
    if(MPM_GIT_BRANCH STREQUAL "master")
        message(STATUS "* You are building the UHD development master branch.")
        message(STATUS "* For production code, we recommend our stable,")
        message(STATUS "* releases or using the release branch (maint).")
    else()
        message(STATUS "* You are building a development branch of UHD.")
        message(STATUS "* These branches are designed to provide early access")
        message(STATUS "* to UHD and USRP features, but should be considered")
        message(STATUS "* unstable and/or experimental!")
    endif(MPM_GIT_BRANCH STREQUAL "master")
    message(STATUS "******************************************************")
endif(MPM_VERSION_DEVEL AND NOT MPM_GIT_BRANCH STREQUAL "maint")
message(STATUS "Building version: ${MPM_VERSION}")
message(STATUS "Building for device: ${MPM_DEVICE}")