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#
# - Find flex/lex executable
#
include(FindChocolatey)
find_program(LEX_EXECUTABLE
NAMES
win_flex
flex
lex
PATHS
${CHOCOLATEY_BIN_PATH}
/bin
/usr/bin
/usr/local/bin
/sbin
)
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(LEX DEFAULT_MSG LEX_EXECUTABLE)
MARK_AS_ADVANCED(LEX_EXECUTABLE)
# flex a .l file
MACRO(ADD_LEX_FILES _source _generated)
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}_lex.h)
ADD_CUSTOM_COMMAND(
OUTPUT ${_outc} ${_outh}
COMMAND ${LEX_EXECUTABLE} $<$<OR:$<CONFIG:Debug>,$<CONFIG:RelWithDebInfo>>:--debug> -o${_outc} --header-file=${_outh} ${_in}
DEPENDS ${_in}
)
LIST(APPEND ${_source} ${_in})
LIST(APPEND ${_generated} ${_outc})
INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR})
ENDFOREACH (_current_FILE)
ENDMACRO(ADD_LEX_FILES)
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