cmake/modules/FindLEX.cmake

   1 #
   2 # $Id$
   3 #
   4 # - Find lex executable
   5 #
   6
   7 INCLUDE(FindCygwin)
   8
   9 FIND_PROGRAM(LEX_EXECUTABLE
  10   NAMES
  11     flex
  12     lex
  13   PATHS
  14     ${CYGWIN_INSTALL_PATH}/bin
  15     /bin
  16     /usr/bin
  17     /usr/local/bin
  18     /sbin
  19 )
  20
  21 INCLUDE(FindPackageHandleStandardArgs)
  22 FIND_PACKAGE_HANDLE_STANDARD_ARGS(LEX DEFAULT_MSG LEX_EXECUTABLE)
  23
  24 MARK_AS_ADVANCED(LEX_EXECUTABLE)
  25
  26 # flex a .l file
  27
  28 MACRO(ADD_LEX_FILES _sources )
  29     FOREACH (_current_FILE ${ARGN})
  30       GET_FILENAME_COMPONENT(_in ${_current_FILE} ABSOLUTE)
  31       GET_FILENAME_COMPONENT(_basename ${_current_FILE} NAME_WE)
  32
  33       SET(_outc ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.c)
  34       SET(_outh ${CMAKE_CURRENT_BINARY_DIR}/${_basename}_lex.h)
  35
  36       ADD_CUSTOM_COMMAND(
  37         OUTPUT ${_outc}
  38         COMMAND ${SH_EXECUTABLE} ${SH_FLAGS1} ${SH_FLAGS2} ${CMAKE_SOURCE_DIR}/tools/runlex.sh ${LEX_EXECUTABLE} ${SED_EXECUTABLE}
  39           -o${_outc}
  40           --header-file=${_outh}
  41           ${_in}
  42         DEPENDS ${_in}
  43       )
  44     SET(${_sources} ${${_sources}} ${_outc} )
  45     INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
  46   ENDFOREACH (_current_FILE)
  47 ENDMACRO(ADD_LEX_FILES)
  48