Created attachment 666245 [details]
If dev-util/duma is installed, aircrack-ng unconditionally links to it:
checking for malloc in -lduma... yes
LIBS: -ldl -lm -lbsd -lduma
This is not good, since duma double memory usage and has other run-time implications. It is good for debugging, but not for a daily use.
I suggest putting this dependency under USE="debug" or something similar.
Full build log and emerge --info follow.
Created attachment 666248 [details]
emerge --info aircrack-ng