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# A macro to define a command that uses the BinPac compiler to
# produce C++ code that implements a protocol parser/analyzer.
# The outputs are returned in BINPAC_OUTPUT_{CC,H}.
# Additional dependencies are pulled from BINPAC_AUXSRC.
#
# The macro also creates a target that can be used to define depencencies on
# the generated files. The name of the target includes a normalized path to
# the input pac to make it unique. The target is added automatically to
# bro_ALL_GENERATED_OUTPUTS.
macro(BINPAC_TARGET pacFile)
if ( BRO_PLUGIN_INTERNAL_BUILD )
set(binpacDep "${BinPAC_EXE}")
else ()
set(BinPAC_EXE "${BRO_PLUGIN_BRO_BUILD}/aux/binpac/src/binpac")
set(BinPAC_addl_args "-I;${BRO_PLUGIN_BRO_SRC}/src")
endif ()
get_filename_component(basename ${pacFile} NAME_WE)
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${basename}_pac.h
${CMAKE_CURRENT_BINARY_DIR}/${basename}_pac.cc
COMMAND ${BinPAC_EXE}
ARGS -q -d ${CMAKE_CURRENT_BINARY_DIR}
-I ${CMAKE_CURRENT_SOURCE_DIR}
-I ${CMAKE_SOURCE_DIR}/src
${BinPAC_addl_args}
${CMAKE_CURRENT_SOURCE_DIR}/${pacFile}
DEPENDS ${binpacDep} ${pacFile}
${BINPAC_AUXSRC} ${ARGN}
COMMENT "[BINPAC] Processing ${pacFile}"
)
set(BINPAC_OUTPUT_H ${CMAKE_CURRENT_BINARY_DIR}/${basename}_pac.h)
set(BINPAC_OUTPUT_CC ${CMAKE_CURRENT_BINARY_DIR}/${basename}_pac.cc)
set(pacOutputs ${BINPAC_OUTPUT_H} ${BINPAC_OUTPUT_CC})
set(target "pac-${CMAKE_CURRENT_BINARY_DIR}/${pacFile}")
string(REGEX REPLACE "${CMAKE_BINARY_DIR}/src/" "" target "${target}")
string(REGEX REPLACE "/" "-" target "${target}")
add_custom_target(${target} DEPENDS ${pacOutputs})
set(BINPAC_BUILD_TARGET ${target})
set(bro_ALL_GENERATED_OUTPUTS ${bro_ALL_GENERATED_OUTPUTS} ${target} CACHE INTERNAL "automatically generated files" FORCE) # Propagate to top-level.
endmacro(BINPAC_TARGET)
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