cppzmq: generate .pc file with pkg-config module

It's less error-prone to use Meson's module rather than upstream's
template.

Author: bgilbert

releases.json

@@ -585,6 +585,7 @@
       "cppzmq"
     ],
     "versions": [
+      "4.10.0-4",
       "4.10.0-3",
       "4.10.0-2",
       "4.10.0-1",

subprojects/packagefiles/cppzmq/meson.build

@@ -3,33 +3,23 @@ project(
   'cpp',
   version: '4.10.0',
   license: 'MIT',
-  meson_version: '>=0.60.0',
+  meson_version: '>=0.49.0',
 )
 
-libzmq_dep = dependency('libzmq')
+deps = [dependency('libzmq')]
 
 cppzmq_dep = declare_dependency(
   include_directories: include_directories('.'),
-  dependencies: libzmq_dep,
+  dependencies: deps,
 )
 
 # install
 install_headers('zmq.hpp', 'zmq_addon.hpp')
-conf_data = configuration_data()
-conf_data.set('CMAKE_INSTALL_PREFIX', get_option('prefix'))
-conf_data.set(
-  'CMAKE_INSTALL_FULL_INCLUDEDIR',
-  get_option('prefix') / get_option('includedir'),
-)
-conf_data.set('PROJECT_NAME', meson.project_name())
-conf_data.set('PROJECT_VERSION', meson.project_version())
-conf_data.set('pkg_config_defines', '')
-configure_file(
-  input: 'cppzmq.pc.in',
-  output: 'cppzmq.pc',
-  configuration: conf_data,
-  install: true,
-  install_tag: 'devel',
+import('pkgconfig').generate(
+  name: meson.project_name(),
+  description: 'C++ binding for libzmq',
+  url: 'https://github.com/zeromq/cppzmq',
+  requires: deps,
   install_dir: get_option('datadir') / 'pkgconfig',
 )