set (YAPOS_SOURCES
  alias.c
  assets.c
  charsio.c
  chartypes.c
  console.c
  files.c
  fmem.c
  fmemopen.c
  format.c
  iopreds.c
  mem.c
  open_memstream.c
  pipes.c
  readline.c
  random.c
  readterm.c
  readutil.c
  sig.c
  sockets.c
  streams.c
  sysbits.c
  time.c
  writeterm.c
  ypsocks.c
  ypstdio.c
  )

set (YAPOS_HEADERS
  encoding.h
  iopreds.h
  fmemopen.h
  yapio.h
  sysbits.h
  VFS.h
  )

  include_directories (../H ../include ../OPTYap .  ${GMP_INCLUDE_DIR} ${PROJECT_BINARY_DIR})

SET_PROPERTY(DIRECTORY PROPERTY COMPILE_DEFINITIONS YAP_KERNEL=1 )

set (POSITION_INDEPENDENT_CODE TRUE)

  add_component (libYAPOs
    ${YAPOS_SOURCES}
    )

  MY_set_target_properties(libYAPOs
    PROPERTIES
    #  RPATH ${libdir} VERSION ${LIBYAPTAI_FULL_VERSION}
    #  SOVERSION ${LIBYAPTAI_MAJOR_VERSION}.${LIBYAPTAI_MINOR_VERSION}
    POSITION_INDEPENDENT_CODE TRUE
    )


  #set( CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${GMP_LIBRARIES} )

  set (YAPOS_PL_SOURCES
      edio.yap
      chartypes.yap
  )

add_to_group( pl_os_library YAPOS_PL_SOURCES )


  if (ANDROID)
      file(INSTALL ${YAPOS_PL_SOURCES}  DESTINATION ${libpl}/os)
else()
    install (FILES ${YAPOS_PL_SOURCES}
    DESTINATION ${libpl}/os )
endif()


include(CheckFunctionExists)
include(CheckSymbolExists)
include(CheckVariableExists)

 option (WITH_READLINE  "GNU readline console" ON)

 if (WIN32)
   set (WITH_READLINE OFF)
   endif (WIN32)

 if (WITH_READLINE)
  macro_optional_find_package (Readline ON)
  
  if (READLINE_FOUND)
  # - Find the readline library
  # This module defines
  #  READLINE_INCLUDE_DIR, path to readline/readline.h, etc.
  #  READLINE_LIBRARIES, the libraries required to use READLINE.
  #  READLINE_FOUND, If false, do not try to use READLINE.
  # also defined, but not for general use are
  # READLINE_readline_LIBRARY, where to find the READLINE library.
  # READLINE_ncurses_LIBRARY, where to find the ncurses library [might not be defined]
  include_directories (BEFORE ${READLINE_INCLUDE_DIR})
  list( APPEND CMAKE_REQUIRED_LIBRARIES ${READLINE_LIBRARIES} )
 check_include_files( "stdio.h;readline/readline.h" HAVE_READLINE_READLINE_H )
  check_include_files( "stdio.h;readline/history.h"  HAVE_READLINE_HISTORY_H )
 if (HAVE_READLINE_READLINE_H)
    SET ( USE_READLINE ON PARENT_SCOPE)
  set(YAP_SYSTEM_OPTIONS "readline" ${YAP_SYSTEM_OPTIONS} PARENT_SCOPE)
    check_library_exists( readline readline "${READLINE_LIBRARIES}" HAVE_LIBREADLINE )
    check_function_exists( add_history  HAVE_ADD_HISTORY )
  check_function_exists( rl_begin_undo_group HAVE_RL_BEGIN_UNDO_GROUP)
  check_function_exists( rl_clear_pending_input HAVE_RL_CLEAR_PENDING_INPUT)
  check_function_exists( rl_discard_argument HAVE_RL_DISCARD_ARGUMENT)
  check_function_exists( rl_filename_completion_function HAVE_RL_FILENAME_COMPLETION_FUNCTION)
  check_function_exists( rl_free_line_state HAVE_RL_FREE_LINE_STATE )
  check_function_exists( rl_insert_close  HAVE_RL_INSERT_CLOSE )
  check_function_exists( rl_reset_after_signal  HAVE_RL_RESET_AFTER_SIGNAL )
  check_function_exists( rl_set_keyboard_input_timeout  HAVE_RL_SET_KEYBOARD_INPUT_TIMEOUT )
  check_function_exists( rl_set_prompt  HAVE_RL_SET_PROMPT)
  check_symbol_exists( rl_catch_signals "stdio.h;readline/readline.h"   HAVE_DECL_RL_CATCH_SIGNALS )
  check_type_size( rl_completion_func_t RL_COMPLETION_FUNC_T    )
  check_symbol_exists( rl_done stdio.h;readline/readline.h  HAVE_DECL_RL_DONE )
  CHECK_TYPE_SIZE( rl_hook_func_t  RL_HOOK_FUNC_T  )
  check_symbol_exists( rl_event_hook stdio.h;readline/readline.h HAVE_DECL_RL_EVENT_HOOK )
  check_symbol_exists( rl_readline_state stdio.h;readline/readline.h HAVE_DECL_RL_READLINE_STATE )
     endif()
endif (READLINE_FOUND)

  set( READLINE_LIBS ${READLINE_LIBRARIES} PARENT_SCOPE)

endif (WITH_READLINE)