Only check for plug if atkplug.h has been included
Only check for plug if atkplug.h has been included

GNOME/at-spi2-core,Distrotech/at-spi2-atk,GNOME/at-spi2-atk,GNOME/at-spi2-core,Distrotech/at-spi2-atk,GNOME/at-spi2-core