gplugin/gplugin

Add visibility information to exported API

8 months ago, Elliott Sales de Andrade
2e7031dd2fde
Add visibility information to exported API

This allows linking against GPlugin on Windows.

This is based on GLib's setup.

Testing Done:
Compiled on Windows and now tests are able to link properly.

Reviewed at https://reviews.imfreedom.org/r/2665/