CMakeLists.txt

cmake_minimum_required( VERSION 2.8.11 )
set (objectName dab_channelScanner)
#set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -std=c++11 -flto")
#set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -flto")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -std=c++11  -g")
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -g")
if (CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
    set (CMAKE_INSTALL_PREFIX "/usr/local/bin" CACHE PATH "default install path" FORCE )
endif()
#set (CMAKE_INSTALL_PREFIX /usr/local/bin)

if(MINGW)
    add_definitions ( -municode)
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)

######################################################################
#
########################################################################
OPTION(SDRPLAY  "Input: SDRPLAY"  OFF)
OPTION(PLUTO	"Input: PLUTO"	  OFF)
OPTION(PLUTO	"Input: RTLSDR"	  OFF)
OPTION(AIRSPY	"Input: AIRSPY"	  OFF)
OPTION(HACKRF	"Input: HACKRF"	  OFF)
OPTION(LIMESDR	"Input: LIMESDR"  OFF)
OPTION(X64_DEFINED "optimize for x64/SSE"  OFF)
OPTION(RPI_DEFINED "optimize for ARM/NEON" OFF)


if ( (NOT SDRPLAY) AND (NOT PLUTO) AND (NOT RTLSDR) AND (NOT AIRSPY) AND
     (NOT HACKRF) AND (NOT LIMESDR))
   message("None of the Input Options selected. Using default SDRPLAY")
   set(SDRPLAY ON)
endif ()

set (objectName "")

if(SDRPLAY)
   if (objectName STREQUAL "")
      set(SDRPLAY_V2 ON)
      set(objectName sdrplay-channelScanner)
   else ()
      message ("Ignoring second option")
   endif ()
endif ()

if(RTLSDR)
   if (objectName STREQUAL "")
      set(RTLSDR ON)
      set(objectName rtlsdr-channelScanner)
   else ()
      message ("Ignoring second option")
   endif ()
endif ()

if(PLUTO)
   if (objectName STREQUAL "")
      set(PLUTOSDR ON)
      set(objectName pluto-channelScanner)
   else ()
      message ("Ignoring second option")
   endif ()
endif ()

if(AIRSPY)
   if (objectName STREQUAL "")
      set(AIRSPY ON)
      set(objectName airspy-channelScanner)
   else ()
      message ("Ignoring second option")
   endif ()
endif ()

if(HACKRF)
   if (objectName STREQUAL "")
      set(HACKRF ON)
      set(objectName hackrf-channelScanner)
   else ()
      message ("Ignoring second option")
   endif ()
endif ()

if(LIMESDR)
   if (objectName STREQUAL "")
      set(LIMESDR ON)
      set(objectName limesdr-channelScanner)
   else ()
      message ("Ignoring second option")
   endif ()
endif ()

#########################################################################
	find_package (PkgConfig)

        find_package(FFTW3f)
        if (NOT FFTW3F_FOUND)
            message(FATAL_ERROR "please install FFTW3")
        endif ()

        find_package(Faad)
        if (NOT FAAD_FOUND )
            message(FATAL_ERROR "please install libfaad")
        endif ()


	find_package(LibSndFile)
	if (NOT LIBSNDFILE_FOUND)
	   message(FATAL_ERROR "please install libsndfile")
	endif ()
	list(APPEND extraLibs ${LIBSNDFILE_LIBRARY})

        find_package(LibSampleRate)
        if (NOT LIBSAMPLERATE_FOUND)
            message(FATAL_ERROR "please install libsamplerate")
        endif ()
        list(APPEND extraLibs ${LIBSAMPLERATE_LIBRARY})

#########################################################################
        find_package (PkgConfig)

##########################################################################
#	The devices
#

	if (SDRPLAY_V2)
	   find_path (SDRPLAYLIB_INCLUDE_DIR
                      NAMES mirsdrapi-rsp.h
                      PATHS
                      /usr/local/include/
	   )
           include_directories (${SDRPLAYLIB_INCLUDE_DIR})

           find_library (SDRPLAYLIB mirsdrapi-rsp)
           if(NOT(SDRPLAYLIB))
              message(FATAL_ERROR "please install -lmirsdrapi-rsp")
           else(NOT(SDRPLAYLIB))
              list (APPEND extraLibs ${SDRPLAYLIB})
           endif(NOT(SDRPLAYLIB))

	   include_directories (
	     ./devices/sdrplay-handler
	   )

	   set ($(objectName)_HDRS
	        ${${objectName}_HDRS}
	        ./devices/sdrplay-handler/sdrplay-handler.h
           )

	   set (${objectName}_SRCS
	        ${${objectName}_SRCS}
	        ./devices/sdrplay-handler/sdrplay-handler.cpp
	   )

	   add_definitions (-DHAVE_SDRPLAY_V2)
	endif (SDRPLAY_V2)


	if (RTLSDR)
           find_package(LibRTLSDR)
           if (NOT LIBRTLSDR_FOUND)
               message(FATAL_ERROR "please install librtlsdr")
           endif ()
	   ###include_directories (${RTLSDR_INCLUDE_DIR})

	   include_directories (
	        ./devices/rtlsdr-handler/
	   )

	   set (${objectName}_HDRS
	        ${${objectName}_HDRS}
	        ./devices/rtlsdr-handler/rtlsdr-handler.h
	   )

	   set (${objectName}_SRCS
	        ${${objectName}_SRCS}
	        ./devices/rtlsdr-handler/rtlsdr-handler.cpp
	   )

	   add_definitions (-DHAVE_RTLSDR)
	endif()

	if (PLUTOSDR)
           find_library (PLUTOLIB iio)
           if(NOT(PLUTOLIB))
              message(FATAL_ERROR "please install libiio")
           else(NOT(PLUTOLIB))
              list (APPEND extraLibs ${PLUTOLIB})
           endif(NOT(PLUTOLIB))
	   find_library (AD9361LIB ad9361)
	   if (NOT(AD9361LIB))
	      message (FATAL_ERROR "please installed libad9361")
	   else(NOT(LIBAD9361))
	      list (APPEND extraLibs ${AD9361LIB})
	   endif(NOT(AD9361LIB))
	   include_directories (
	     ./devices/pluto-handler
	   )

	   set ($(objectName)_HDRS
	        ${${objectName}_HDRS}
	        ./devices/pluto-handler/pluto-handler.h
           )

	   set (${objectName}_SRCS
	        ${${objectName}_SRCS}
	        ./devices/pluto-handler/pluto-handler.cpp
	   )

	 add_definitions (-DHAVE_PLUTO)
	endif (PLUTOSDR)

	if (AIRSPY)
           find_package(LibAIRSPY)
           if (NOT LIBAIRSPY_FOUND)
               message(FATAL_ERROR "please install airspy library")
           endif ()
	   ### include_directories (${AIRSPYLIB_INCLUDE_DIR})
           list(APPEND extraLibs ${LIBAIRSPY_LIBRARIES})

	   include_directories (
	     ./devices/airspy-handler
	   )

	   set ($(objectName)_HDRS
	        ${${objectName}_HDRS}
	        ./devices/airspy-handler/airspy-handler.h
	   )

	   set (${objectName}_SRCS
	        ${${objectName}_SRCS}
	        ./devices/airspy-handler/airspy-handler.cpp
	   )

	   add_definitions (-DHAVE_AIRSPY)
	endif (AIRSPY)

	if (HACKRF)
	   find_path (HACKLIB_INCLUDE_DIR
                      NAMES hackrf.h
                      PATHS
	              ./devices/hackrf-handler/libhackrf/
                       /usr/local/include/
	   )
           include_directories (${HACKLIB_INCLUDE_DIR})

           find_library (HACKLIB hackrf)
           if(NOT(HACKLIB))
              message(FATAL_ERROR "please install -lhackrf")
           else(NOT(HACKLIB))
              list (APPEND extraLibs ${HACKLIB})
           endif(NOT(HACKLIB))

	   include_directories (
	     ./devices/hackrf-handler
	   )

	   set ($(objectName)_HDRS
	        ${${objectName}_HDRS}
	        ./devices/hackrf-handler/hackrf-handler.h
           )

	   set (${objectName}_SRCS
	        ${${objectName}_SRCS}
	        ./devices/hackrf-handler/hackrf-handler.cpp
	   )

	 add_definitions (-DHAVE_HACKRF)
	endif (HACKRF)

	if (LIMESDR)
           find_library (LIMELIB LimeSuite)
           if(NOT(LIMELIB))
              message(FATAL_ERROR "please install LimeSuite")
           else(NOT(LIMELIB))
              list (APPEND extraLibs ${LIMELIB})
           endif(NOT(LIMELIB))

	   include_directories (
	     ./devices/lime-handler
	   )

	   set ($(objectName)_HDRS
	        ${${objectName}_HDRS}
	        ./devices/lime-handler/LMS7002M_parameters.h
	        ./devices/lime-handler/LimeSuite.h
	        ./devices/lime-handler/lime-handler.h
           )

	   set (${objectName}_SRCS
	        ${${objectName}_SRCS}
	        ./devices/lime-handler/lime-handler.cpp
	   )

	 add_definitions (-DHAVE_LIMESDR)
	endif (LIMESDR)

        find_package(zlib)
	if (NOT ZLIB_FOUND)
            message(FATAL_ERROR "please install libz")
        endif ()
	list(APPEND extraLibs ${ZLIB_LIBRARY})

	find_library (PTHREADS pthread)
	if (NOT(PTHREADS))
	   message (FATAL_ERROR "please install libpthread")
	else (NOT(PTHREADS))
	   set (extraLibs ${extraLibs} ${PTHREADS})
	endif (NOT(PTHREADS))

#######################################################################
#
#	Here we really start

	include_directories (
	           ${CMAKE_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}
	           .
	           ./
	           ./devices
	           ./dab-streamer
	           ./ofdm
	           ./support
	           ./support/viterbi-spiral
	           /usr/include/
	)

	set (${objectName}_HDRS
	     ${${objectName}_HDRS}
	     ./dab-constants.h
	     ./dab-api.h
	     ./service-printer.h
	     ./dab_tables.h
	     ./devices/device-handler.h
	     ./devices/xml-filewriter.h
	     ./dab-processor.h
	     ./ofdm/phasereference.h
	     ./ofdm/phasetable.h
	     ./ofdm/freq-interleaver.h
	     ./ofdm/timesyncer.h
	     ./ofdm/fic-handler.h
	     ./ofdm/fib-processor.cpp
	     ./ofdm/sample-reader.h
	     ./ofdm/tii_detector.h
	     ./support/ringbuffer.h
	     ./support/band-handler.h
	     ./support/protTables.h
	     ./support/protection.h
	     ./support/uep-protection.h
	     ./support/eep-protection.h
	     ./support/fft_handler.h
	     ./support/dab-params.h
	     ./support/charsets.h
	     ./support/viterbi-spiral/viterbi-spiral.h
	)

	set (${objectName}_SRCS
	     ${${objectName}_SRCS}
	     ./main.cpp
	     ./service-printer.cpp
	     ./dab_tables.cpp
	     ./devices/device-handler.cpp
	     ./devices/xml-filewriter.cpp
	     ./dab-processor.cpp
	     ./ofdm/ofdm-decoder.cpp
	     ./ofdm/phasereference.cpp
	     ./ofdm/phasetable.cpp
	     ./ofdm/freq-interleaver.cpp
	     ./ofdm/timesyncer.cpp
	     ./ofdm/sample-reader.cpp
	     ./ofdm/fib-processor.cpp
	     ./ofdm/fic-handler.cpp
	     ./ofdm/tii_detector.cpp
	     ./support/band-handler.cpp
#	     ./support/viterbi-handler.cpp
	     ./support/protTables.cpp
	     ./support/protection.cpp
	     ./support/eep-protection.cpp
	     ./support/uep-protection.cpp
	     ./support/fft_handler.cpp
	     ./support/dab-params.cpp
	     ./support/charsets.cpp
	     ./support/viterbi-spiral/viterbi-spiral.cpp
	)

	if (X64_DEFINED)
           set (${objectName}_SRCS
                ${${objectName}_SRCS}
              ./support/viterbi-spiral/spiral-sse.c
           )
           set (${objectName}_HDRS
                ${${objectName}_HDRS}
             ./support/viterbi-spiral/spiral-sse.h
           )
           add_definitions (-DSSE_AVAILABLE)
        elseif (RPI_DEFINED)
           set (${objectName}_SRCS
                ${${objectName}_SRCS}
              ./support/viterbi-spiral/spiral-neon.c
           )
           set (${objectName}_HDRS
                ${${objectName}_HDRS}
             ./support/viterbi-spiral/spiral-neon.h
           )
           add_definitions (-DNEON_AVAILABLE)
	# compiler options moved below add_executable .. and target specific
	#set (CMAKE_CXX_FLAGS "${CMAKE_XCC_FLAGS} -mcpu=cortex-a7 -mfloat-abi=hard -mfpu=neon-vfpv4")
	#set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-a7 -mfloat-abi=hard -mfpu=neon-vfpv4")
        else (X64_DEFINED)
           set (${objectName}_SRCS
                ${${objectName}_SRCS}
              ./support/viterbi-spiral/spiral-no-sse.c
           )
           set (${objectName}_HDRS
                ${${objectName}_HDRS}
             ./support/viterbi-spiral/spiral-no-sse.h
           )
        endif (X64_DEFINED)
#
	include_directories (
	          ${FFTW_INCLUDE_DIRS}
	          ${PORTAUDIO_INCLUDE_DIRS}
	          ${FAAD_INCLUDE_DIRS}
	          ${SNDFILES_INCLUDE_DIRS}
	)

#####################################################################

	add_executable (${objectName} 
	                ${${objectName}_SRCS}
	)
       if (RPI_DEFINED)
           # compiler options seem changed with gcc versions. gcc 8.3.0 on Raspbian didn't accept -mcpu ..
           # test options with "make VERBOSE=1"
           target_compile_options(${objectName}  PRIVATE -march=armv7-a -mfloat-abi=hard -mfpu=neon-vfpv4 )
        endif()

	target_link_libraries (${objectName}
	                       ${FFTW3F_LIBRARIES}
	                       ${extraLibs}
	                       ${FAAD_LIBRARIES}
	                       ${CMAKE_DL_LIBS}
	)

	INSTALL (TARGETS ${objectName} DESTINATION .)

########################################################################
# Create uninstall target
########################################################################

configure_file(
    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
    "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
    IMMEDIATE @ONLY)

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