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# - Find lex executable
#
INCLUDE(FindCygwin)
FIND_PROGRAM(LEX_EXECUTABLE
NAMES
flex
lex
PATH
${CYGWIN_INSTALL_PATH}/bin
/bin
/usr/bin
/usr/local/bin
/sbin
)
MARK_AS_ADVANCED(
LEX_EXECUTABLE
)
# flex a .l file
# search flex
MACRO(FIND_LEX)
IF(NOT LEX_EXECUTABLE)
FIND_PROGRAM(LEX_EXECUTABLE flex)
IF (NOT LEX_EXECUTABLE)
MESSAGE(FATAL_ERROR "flex not found - aborting")
ENDIF (NOT LEX_EXECUTABLE)
ENDIF(NOT LEX_EXECUTABLE)
ENDMACRO(FIND_LEX)
MACRO(ADD_LEX_FILES _sources )
FIND_LEX()
FOREACH (_current_FILE ${ARGN})
GET_FILENAME_COMPONENT(_in ${_current_FILE} ABSOLUTE)
GET_FILENAME_COMPONENT(_basename ${_current_FILE} NAME_WE)
SET(_outc ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.c)
SET(_outh ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.h)
ADD_CUSTOM_COMMAND(
OUTPUT ${_outc} ${_outh}
COMMAND ${LEX_EXECUTABLE}
ARGS
-o${_outc}
--header-file=${_outh}
${_in}
DEPENDS ${_in}
)
SET(${_sources} ${${_sources}} ${_outc} ${_outh} )
ENDFOREACH (_current_FILE)
ENDMACRO(ADD_LEX_FILES)
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