Add appmenu-gtk-module as runtime dependency

Makes packagers aware that this module is needed for full GTK global menu integration

Differential Revision: https://phabricator.kde.org/D15327

cmake/FindAppMenuGtkModule.cmake

@@ -0,0 +1,63 @@
+#.rst:
+# FindAppmenuGtkModule
+# -----------
+#
+# Try to find appmenu-gtk2-module and appmenu-gtk3-module.
+# Once done this will define:
+#
+# ``AppMenuGtkModule_FOUND``
+#     System has both appmenu-gtk2-module and appmenu-gtk3-module
+
+#=============================================================================
+# Copyright (c) 2018 Kai Uwe Broulik <kde@broulik.de>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+find_library(AppMenuGtk2Module_LIBRARY libappmenu-gtk-module.so
+    PATH_SUFFIXES
+        gtk-2.0/modules
+)
+
+find_library(AppMenuGtk3Module_LIBRARY libappmenu-gtk-module.so
+    PATH_SUFFIXES
+        gtk-3.0/modules
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(AppMenuGtkModule
+    FOUND_VAR
+        AppMenuGtkModule_FOUND
+    REQUIRED_VARS
+        AppMenuGtk3Module_LIBRARY
+        AppMenuGtk2Module_LIBRARY
+)
+
+mark_as_advanced(AppMenuGtk3Module_LIBRARY AppMenuGtk2Module_LIBRARY)
+
+include(FeatureSummary)
+set_package_properties(AppMenuGtkModule PROPERTIES
+    URL "https://github.com/rilian-la-te/vala-panel-appmenu/tree/master/subprojects/appmenu-gtk-module"
+    DESCRIPTION "Application Menu GTK+ Module"
+)

gmenu-dbusmenu-proxy/CMakeLists.txt

@@ -1,3 +1,6 @@
+find_package(AppMenuGtkModule)
+set_package_properties(AppMenuGtkModule PROPERTIES TYPE RUNTIME)
+
 add_definitions(-DQT_NO_CAST_TO_ASCII
 -DQT_NO_CAST_FROM_ASCII
 -DQT_NO_URL_CAST_FROM_STRING