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Better way of finding libzmq (#235)

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* new strategy for finding zmq based on cppzmq
This commit is contained in:
Erik Fröjdh
2021-03-15 15:03:45 +01:00
committed by GitHub
parent 435146ca9c
commit bdeb030fea
13 changed files with 111 additions and 137 deletions
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112
cmake/FindZeroMQ.cmake
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@ -1,112 +0,0 @@
# This file is originally from https://github.com/zeromq/azmq and distributed
# under Boost Software Lincese 1.0
# Boost Software License - Version 1.0 - August 17th, 2003
# Permission is hereby granted, free of charge, to any person or organization
# obtaining a copy of the software and accompanying documentation covered by
# this license (the "Software") to use, reproduce, display, distribute,
# execute, and transmit the Software, and to prepare derivative works of the
# Software, and to permit third-parties to whom the Software is furnished to
# do so, all subject to the following:
# The copyright notices in the Software and this entire statement, including
# the above license grant, this restriction and the following disclaimer,
# must be included in all copies of the Software, in whole or in part, and
# all derivative works of the Software, unless such copies or derivative
# works are solely in the form of machine-executable object code generated by
# a source language processor.
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
# SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
# FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
# --------------------------------------------------------------------------------
# Find ZeroMQ Headers/Libs
# Variables
# ZMQ_ROOT - set this to a location where ZeroMQ may be found
#
# ZeroMQ_FOUND - True of ZeroMQ found
# ZeroMQ_INCLUDE_DIRS - Location of ZeroMQ includes
# ZeroMQ_LIBRARIES - ZeroMQ libraries
include(FindPackageHandleStandardArgs)
if (NOT ZMQ_ROOT)
set(ZMQ_ROOT "$ENV{ZMQ_ROOT}")
endif()
if (NOT ZMQ_ROOT)
find_path(_ZeroMQ_ROOT NAMES include/zmq.h)
else()
set(_ZeroMQ_ROOT "${ZMQ_ROOT}")
endif()
find_path(ZeroMQ_INCLUDE_DIRS NAMES zmq.h HINTS ${_ZeroMQ_ROOT}/include)
if (ZeroMQ_INCLUDE_DIRS)
set(_ZeroMQ_H ${ZeroMQ_INCLUDE_DIRS}/zmq.h)
function(_zmqver_EXTRACT _ZeroMQ_VER_COMPONENT _ZeroMQ_VER_OUTPUT)
set(CMAKE_MATCH_1 "0")
set(_ZeroMQ_expr "^[ \\t]*#define[ \\t]+${_ZeroMQ_VER_COMPONENT}[ \\t]+([0-9]+)$")
file(STRINGS "${_ZeroMQ_H}" _ZeroMQ_ver REGEX "${_ZeroMQ_expr}")
string(REGEX MATCH "${_ZeroMQ_expr}" ZeroMQ_ver "${_ZeroMQ_ver}")
set(${_ZeroMQ_VER_OUTPUT} "${CMAKE_MATCH_1}" PARENT_SCOPE)
endfunction()
_zmqver_EXTRACT("ZMQ_VERSION_MAJOR" ZeroMQ_VERSION_MAJOR)
_zmqver_EXTRACT("ZMQ_VERSION_MINOR" ZeroMQ_VERSION_MINOR)
_zmqver_EXTRACT("ZMQ_VERSION_PATCH" ZeroMQ_VERSION_PATCH)
message(STATUS "ZeroMQ version: ${ZeroMQ_VERSION_MAJOR}.${ZeroMQ_VERSION_MINOR}.${ZeroMQ_VERSION_PATCH}")
# We should provide version to find_package_handle_standard_args in the same format as it was requested,
# otherwise it can't check whether version matches exactly.
if (ZeroMQ_FIND_VERSION_COUNT GREATER 2)
set(ZeroMQ_VERSION "${ZeroMQ_VERSION_MAJOR}.${ZeroMQ_VERSION_MINOR}.${ZeroMQ_VERSION_PATCH}")
else()
# User has requested ZeroMQ version without patch part => user is not interested in specific patch =>
# any patch should be an exact match.
set(ZeroMQ_VERSION "${ZeroMQ_VERSION_MAJOR}.${ZeroMQ_VERSION_MINOR}")
endif()
if (NOT ${CMAKE_CXX_PLATFORM_ID} STREQUAL "Windows")
find_library(ZeroMQ_LIBRARIES NAMES zmq HINTS ${_ZeroMQ_ROOT}/lib)
else()
find_library(
ZeroMQ_LIBRARY_RELEASE
NAMES
libzmq
"libzmq-${CMAKE_VS_PLATFORM_TOOLSET}-mt-${ZeroMQ_VERSION_MAJOR}_${ZeroMQ_VERSION_MINOR}_${ZeroMQ_VERSION_PATCH}"
HINTS
${_ZeroMQ_ROOT}/lib
)
find_library(
ZeroMQ_LIBRARY_DEBUG
NAMES
libzmq_d
"libzmq-${CMAKE_VS_PLATFORM_TOOLSET}-mt-gd-${ZeroMQ_VERSION_MAJOR}_${ZeroMQ_VERSION_MINOR}_${ZeroMQ_VERSION_PATCH}"
HINTS
${_ZeroMQ_ROOT}/lib)
# On Windows we have to use corresponding version (i.e. Release or Debug) of ZeroMQ because of `errno` CRT global variable
# See more at http://www.drdobbs.com/avoiding-the-visual-c-runtime-library/184416623
set(ZeroMQ_LIBRARIES optimized "${ZeroMQ_LIBRARY_RELEASE}" debug "${ZeroMQ_LIBRARY_DEBUG}")
endif()
endif()
find_package_handle_standard_args(ZeroMQ FOUND_VAR ZeroMQ_FOUND
REQUIRED_VARS ZeroMQ_INCLUDE_DIRS ZeroMQ_LIBRARIES
VERSION_VAR ZeroMQ_VERSION)
if (ZeroMQ_FOUND)
mark_as_advanced(ZeroMQ_INCLUDE_DIRS ZeroMQ_LIBRARIES ZeroMQ_VERSION
ZeroMQ_VERSION_MAJOR ZeroMQ_VERSION_MINOR ZeroMQ_VERSION_PATCH)
endif()

6
cmake/package_config.cmake
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@ -25,6 +25,12 @@ install(FILES
DESTINATION ${CMAKE_INSTALL_DIR}
)
install(FILES
"${CMAKE_SOURCE_DIR}/libzmq-pkg-config/FindZeroMQ.cmake"
COMPONENT devel
DESTINATION ${CMAKE_INSTALL_DIR}/libzmq-pkg-config
)
if (PROJECT_LIBRARIES OR PROJECT_STATIC_LIBRARIES)
install(
EXPORT "${TARGETS_EXPORT_NAME}"

15
cmake/project-config.cmake.in
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@ -12,8 +12,21 @@ include(CMakeFindDependencyMacro)
set(SLS_USE_HDF5 "@SLS_USE_HDF5@")
# Add optional dependencies here
find_package(ZeroMQ 4 QUIET)
# libzmq autotools install: fallback to pkg-config
if(NOT ZeroMQ_FOUND)
list (APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR}/libzmq-pkg-config)
find_package(ZeroMQ 4 REQUIRED)
endif()
if(NOT ZeroMQ_FOUND)
message(FATAL_ERROR "ZeroMQ was NOT found!")
endif()
find_dependency(Threads)
# Add optional dependencies here
if (SLS_USE_HDF5)
find_dependency(HDF5)
endif ()