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#
# - Find lex executable
#
INCLUDE(FindCygwin)
#INCLUDE(FindChocolatey)
# Chocolatey's C:\Chocolatey\bin\win_flex and -\win_bison are
# currently unusable without some manual adjustments to the
# win_flex and win_bison wrapper scripts. Calling the executables
# directly should work.
FIND_PROGRAM(LEX_EXECUTABLE
NAMES
flex
win_flex
lex
PATHS
${CYGWIN_INSTALL_PATH}/bin
# ${CHOCOLATEY_INSTALL_PATH}/bin
# ${CHOCOLATEY_INSTALL_PATH}/lib/winflexbison.2.4.1.20140103/tools
/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 _sources )
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}
COMMAND ${SH_EXECUTABLE} ${SH_FLAGS1} ${SH_FLAGS2} ${CMAKE_SOURCE_DIR}/tools/runlex.sh ${LEX_EXECUTABLE} ${SED_EXECUTABLE}
-o${_outc}
--header-file=${_outh}
${_in}
DEPENDS ${_in}
)
SET(${_sources} ${${_sources}} ${_outc} )
INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
ENDFOREACH (_current_FILE)
ENDMACRO(ADD_LEX_FILES)
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