gplugin/gplugin

Fix some issues with the gtk3 and gtk4 includes when not used in a subproject

24 months ago, Gary Kramlich
5362a1727bf6
Fix some issues with the gtk3 and gtk4 includes when not used in a subproject

Testing Done:
Ran the unit tests and gplugin-gtk4-viewer and verified no issues.

Bugs closed: GPLUGIN-145

Reviewed at https://reviews.imfreedom.org/r/1469/
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<requires lib="gtk" version="4.0"/>
<requires lib="gplugin-gtk" version="0.35"/>
<template class="GPluginGtkViewerWindow" parent="GtkApplicationWindow">
<property name="title" translatable="yes">GPlugin Viewer</property>
<property name="default-width">600</property>
<property name="default-height">400</property>
<child>
<object class="GPluginGtkView" id="view"/>
</child>
</template>
</interface>