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provide FindZMQ.cmake consistent with the one shipped by cppzmq #507

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Merged
nathanwbrei merged 1 commit into from
Jun 7, 2026
Merged

provide FindZMQ.cmake consistent with the one shipped by cppzmq #507

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2 changes: 1 addition & 1 deletion CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -192,7 +192,7 @@ else()
message(STATUS "USE_ROOT Off")
endif()
if (${USE_ZEROMQ})
message(STATUS "USE_ZEROMQ On --> " ${ZeroMQ_DIR})
message(STATUS "USE_ZEROMQ On")
else()
message(STATUS "USE_ZEROMQ Off")
endif()
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58 changes: 29 additions & 29 deletions cmake/FindZeroMQ.cmake
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Original file line number Diff line number Diff line change
@@ -1,34 +1,34 @@
# - Try to find ZeroMQ
# Once done this will define
# ZeroMQ_FOUND - System has ZeroMQ
# ZeroMQ_INCLUDE_DIRS - The ZeroMQ include directories
# ZeroMQ_LIBRARIES - The libraries needed to use ZeroMQ
# ZeroMQ_DEFINITIONS - Compiler switches required for using ZeroMQ
set(PKG_CONFIG_USE_CMAKE_PREFIX_PATH ON)
find_package(PkgConfig)
pkg_check_modules(PC_LIBZMQ QUIET libzmq)

find_path (ZeroMQ_INCLUDE_DIR zmq.h)
find_library (ZeroMQ_LIBRARY NAMES zmq)
set (ZeroMQ_LIBRARIES ${ZeroMQ_LIBRARY})
set (ZeroMQ_INCLUDE_DIRS ${ZeroMQ_INCLUDE_DIR})
set(ZeroMQ_VERSION ${PC_LIBZMQ_VERSION})

# Use parent directory name of the include directory to
# indicate where we are getting this from. This is
# informational only for when the top-level file
# prints "USE_ZEROMQ On -->"
# n.b. it is possible the library and include directories
# don't point to the same version!
get_filename_component(ZeroMQ_DIR ${ZeroMQ_INCLUDE_DIR} DIRECTORY)
find_path(ZeroMQ_INCLUDE_DIR zmq.h
PATHS ${ZeroMQ_DIR}/include
${PC_LIBZMQ_INCLUDE_DIRS})

# For debugging
#message(STATUS "ZeroMQ_INCLUDE_DIR=${ZeroMQ_INCLUDE_DIR}")
#message(STATUS "ZeroMQ_LIBRARY=${ZeroMQ_LIBRARY}")
#message(STATUS "ZeroMQ_DIR=${ZeroMQ_DIR}")
find_library(ZeroMQ_LIBRARY
NAMES zmq
PATHS ${ZeroMQ_DIR}/lib
${PC_LIBZMQ_LIBDIR}
${PC_LIBZMQ_LIBRARY_DIRS})

# handle the QUIETLY and REQUIRED arguments and set ZeroMQ_FOUND to TRUE
# if all listed variables are TRUE
if(ZeroMQ_LIBRARY)
set(ZeroMQ_FOUND ON)
endif()

set ( ZeroMQ_LIBRARIES ${ZeroMQ_LIBRARY} )
set ( ZeroMQ_INCLUDE_DIRS ${ZeroMQ_INCLUDE_DIR} )

include (FindPackageHandleStandardArgs)
find_package_handle_standard_args(ZeroMQ
FOUND_VAR ZeroMQ_FOUND
VERSION_VAR ZeroMQ_VERSION
REQUIRED_VARS ZeroMQ_DIR ZeroMQ_INCLUDE_DIRS ZeroMQ_LIBRARIES
)
if(NOT TARGET libzmq)
add_library(libzmq UNKNOWN IMPORTED)
set_target_properties(libzmq PROPERTIES
IMPORTED_LOCATION ${ZeroMQ_LIBRARIES}
INTERFACE_INCLUDE_DIRECTORIES ${ZeroMQ_INCLUDE_DIRS})
endif()

include ( FindPackageHandleStandardArgs )
# handle the QUIETLY and REQUIRED arguments and set ZMQ_FOUND to TRUE
# if all listed variables are TRUE
find_package_handle_standard_args ( ZeroMQ DEFAULT_MSG ZeroMQ_LIBRARIES ZeroMQ_INCLUDE_DIRS )
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