Pidgin plugin to ignore "X is now known as Y" messages in chat
The name of this plugin (under which it dhows up in the Plugins list) is "Nick Change Hiding", and not "Ignore Nick Change" as listed on https://developer.pidgin.im/wiki/ThirdPartyPlugins#Notifications.
Windows plugin download from http://eion.robbmob.com/nickchange.dll
To compile on Linux, make sure you have the 'glib-dev', 'pidgin-dev', 'purple-dev' and 'pkg-config' packages for your distro and run
gcc -Wall -fPIC nickchange.c -o nickchange.so -shared `pkg-config --cflags --libs glib-2.0 purple pidgin`then copy the nickchange.so file to your ~/.purple/plugins folder.
Or run
makewhich does all that for you.