How to install a plugin in Pidgin?

Question

linux

I want to make a plugin for Pidgin. C https://developer.pidgin.im/wiki/CHowTo/BasicPlugi... took sample code https://github.com/kissarat/histore/tree/0cad8a1c2... compiled to libhistore.so
Tried to copy it to ~ /.purple/plugins/ , /usr/lib/purple-2/ and /usr/lib/pidgin/ - Pidgin doesn't see it (the /usr/lib64 directory doesn't exist)
I thought something might be wrong with me. I took it, the plugin that was once used by https://bitbucket.org/olegoandreev/purple-vk-plugin , compiled libpurple-vk-plugin.so , copied it to the same folders (in turn) - the result is the same - Pidgin is not sees.
make install didn't work either.
I have Pidgin 2.10.11, Debian 8 x64 Cinnamon

Compiled Librarieshttps://www.dropbox.com/sh/z4ts57d3xe555ta/AAAfMTd...