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# Find the ZMQ libraries
#
# The following variables are optionally searched for defaults
# ZMQ_ROOT_DIR: Base directory where all ZMQ components are found
#
# The following are set after configuration is done:
# ZMQ_FOUND
# ZMQ_INCLUDE_DIR
# ZMQ_LIBRARIES
# ZMQ_VERSION_MAJOR
find_path(ZMQ_INCLUDE_DIR NAMES zmq.h
PATHS ${ZMQ_ROOT_DIR} ${ZMQ_ROOT_DIR}/include)
find_library(ZMQ_LIBRARIES NAMES zmq
PATHS ${ZMQ_ROOT_DIR} ${ZMQ_ROOT_DIR}/lib)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(ZMQ DEFAULT_MSG ZMQ_INCLUDE_DIR ZMQ_LIBRARIES)
if(ZMQ_FOUND)
message(STATUS "Found ZMQ (include: ${ZMQ_INCLUDE_DIR}, library: ${ZMQ_LIBRARIES})")
mark_as_advanced(ZMQ_INCLUDE_DIR ZMQ_LIBRARIES)
caffe_parse_header(${ZMQ_INCLUDE_DIR}/zmq.h ZMQ_VERSION_LINES ZMQ_VERSION_MAJOR)
if(${ZMQ_VERSION_MAJOR} VERSION_LESS "3")
message(WARNING "Caffe2 requires zmq version 3 or above, but found " ${ZMQ_VERSION_MAJOR} ". Disabling zmq for now.")
set(ZMQ_FOUND)
else()
endif()
endif()
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