#################################################
#
#  (C) 2010 Serghei Amelian
#  serghei (DOT) amelian (AT) gmail.com
#
#  Improvements and feedback are welcome
#
#  This file is released under GPL >= 2
#
#################################################

cmake_minimum_required( VERSION 2.6 )


##### project settings ##########################

project( arts )

set( ARTS_MAJOR_VERSION 1 )
set( ARTS_MINOR_VERSION 5 )
set( ARTS_MICRO_VERSION 10 )
set( ARTS_VERSION "${ARTS_MAJOR_VERSION}.${ARTS_MINOR_VERSION}.${ARTS_MICRO_VERSION}" )


##### user requested options ####################

option( WITH_ALSA "Enable ALSA support" ON )
option( WITH_AUDIOFILE "Enable audiofile (wav) support" ON )
option( WITH_VORBIS "Enable Ogg/Vorbis support" ON )
option( WITH_MAD "Enable MAD mp3 decoder support" ON )


##### paths setup ###############################

if( NOT BIN_INSTALL_DIR )
  set( BIN_INSTALL_DIR bin )
endif ( NOT BIN_INSTALL_DIR )

if( NOT LIB_INSTALL_DIR )
  set( LIB_INSTALL_DIR lib )
endif( NOT LIB_INSTALL_DIR )

if( NOT INCLUDE_INSTALL_DIR )
  set( INCLUDE_INSTALL_DIR include/${CMAKE_PROJECT_NAME} )
endif( NOT INCLUDE_INSTALL_DIR )

if( NOT PKGCONFIG_INSTALL_DIR )
  set( PKGCONFIG_INSTALL_DIR lib/pkgconfig )
endif( NOT PKGCONFIG_INSTALL_DIR )


##### check for include files ###################

include( CheckIncludeFile )

check_include_file( "sys/time.h" HAVE_SYS_TIME_H )
check_include_file( "time.h" TIME_WITH_SYS_TIME )
check_include_file( "stdio.h" HAVE_STDIO_H )
check_include_file( "stdlib.h" HAVE_STDLIB_H )
check_include_file( "string.h" HAVE_STRING_H )
check_include_file( "strings.h" HAVE_STRINGS_H )
check_include_file( "ctype.h" HAVE_CTYPE_H )
check_include_file( "malloc.h" HAVE_MALLOC_H )
check_include_file( "memory.h" HAVE_MEMORY_H )
check_include_file( "dlfcn.h" HAVE_DLFCN_H )


##### check for system libraries ################

include( CheckLibraryExists )

set( DL_LIBRARIES dl )
check_library_exists( ${DL_LIBRARIES} dlopen /lib HAVE_LIBDL )
if( NOT HAVE_LIBDL )
  unset( DL_LIBRARIES )
endif( NOT HAVE_LIBDL )

find_package( Threads )

##### check for functions #######################

include( CheckFunctionExists )

set( bak_CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} )
set( CMAKE_REQUIRED_LIBRARIES dl )
check_function_exists( dlerror HAVE_DLERROR )
check_function_exists( strcmp HAVE_STRCMP )
check_function_exists( strchr HAVE_STRCHR )
check_function_exists( index HAVE_INDEX )
check_function_exists( strrchr HAVE_STRRCHR )
check_function_exists( rindex HAVE_RINDEX )
check_function_exists( memcpy HAVE_MEMCPY )
check_function_exists( bcopy HAVE_BCOPY )
set( CMAKE_REQUIRED_LIBRARIES ${bak_CMAKE_REQUIRED_LIBRARIES} )
unset( bak_CMAKE_REQUIRED_LIBRARIES )


##### check for modules #########################

include( FindPkgConfig )


##### check for audiofile #######################

set( HAVE_LIBAUDIOFILE 0 )
if( WITH_AUDIOFILE )

  pkg_search_module( AUDIOFILE audiofile )
  if( AUDIOFILE_FOUND )
    set( HAVE_LIBAUDIOFILE 1 )
  else( AUDIOFILE_FOUND )
    message(FATAL_ERROR "\naudiofile (wav) support are requested, but `libaudiofile` not found" )
  endif( AUDIOFILE_FOUND )

endif( WITH_AUDIOFILE )


##### check for alsa ############################

set( HAVE_LIBASOUND2 0 )
if( WITH_ALSA )

  find_package( ALSA )

  if( ALSA_FOUND )

    # there is support only for ALSA 1.x

    set( HAVE_LIBASOUND2 1 )
    set( ALSA_PCM_OLD_SW_PARAMS_API 1 )
    set( ALSA_PCM_OLD_HW_PARAMS_API 1 )

    check_include_file( "alsa/asoundlib.h" HAVE_ALSA_ASOUNDLIB_H )
    if( NOT HAVE_ALSA_ASOUNDLIB_H )
      check_include_file( "sys/asoundlib.h" HAVE_SYS_ASOUNDLIB_H )
    endif( NOT HAVE_ALSA_ASOUNDLIB_H )

    set( bak_CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} )
    set( CMAKE_REQUIRED_LIBRARIES ${ALSA_LIBRARIES} )
    check_function_exists( snd_pcm_resume HAVE_SND_PCM_RESUME )
    set( CMAKE_REQUIRED_LIBRARIES ${bak_CMAKE_REQUIRED_LIBRARIES} )
    unset( bak_CMAKE_REQUIRED_LIBRARIES )

  else( ALSA_FOUND )

    message(FATAL_ERROR "\nALSA support are requested, but not found on your system" )

  endif( ALSA_FOUND )

endif( WITH_ALSA )


##### check for glib/gthread modules ############

pkg_search_module( GLIB2 glib-2.0 )

if( GLIB2_FOUND )
  pkg_search_module( GTHREAD2 gthread-2.0 )
  if( NOT GTHREAD2_FOUND )
    message(FATAL_ERROR "\ngthread-2.0 are required, but not found on your system" )
  endif( NOT GTHREAD2_FOUND )
else( GLIB2_FOUND )
  message(FATAL_ERROR "\nglib-2.0 are required, but not found on your system" )
endif( GLIB2_FOUND )


##### check for Qt3 #############################

find_package( Qt3 )
if( NOT QT_FOUND )
    message(FATAL_ERROR "\nQt3 are required, but not found on your system" )
endif( NOT QT_FOUND )


##### check for TQt #############################

pkg_search_module( TQT TQt )
if( NOT TQT_FOUND )
    message(FATAL_ERROR "\nTQt are required, but not found on your system" )
endif( NOT TQT_FOUND )


##### write config.h file #######################

configure_file( config.h.cmake config.h @ONLY )


##### write pkgconfig file ######################

configure_file( arts.pc.cmake arts.pc @ONLY )
install( FILES ${CMAKE_CURRENT_BINARY_DIR}/arts.pc DESTINATION ${PKGCONFIG_INSTALL_DIR} )


##### global compiler settings ##################

add_definitions(
  -DHAVE_CONFIG_H
)

set( CMAKE_SHARED_LINKER_FLAGS "-Wl,--no-undefined" )


##### project subdirectories ####################

add_subdirectory( libltdl )
add_subdirectory( mcop )
add_subdirectory( mcopidl )
add_subdirectory( flow )
add_subdirectory( mcop_mt )
add_subdirectory( soundserver )
add_subdirectory( artsc )
add_subdirectory( gmcop )
add_subdirectory( qtmcop )