A change was committed for unpaper upstream: http://cvs.berlios.de/cgi-bin/viewcvs.cgi/unpaper/unpaper/unpaper.c?r1=1.14&r2=1.15&view=patch as a result of Debian concerns over sprintf behaviour with -D_FORTIFY_SOURCE=2: http://lists.debian.org/debian-devel/2008/12/msg01079.html Added as a blocker for bug 259417. PS Off-topic, but when compiling setting -D TIMESTAMP=$(date +"%F %T") allows unpaper -V to report the build time.
This should be fixed in my 0.4, instead.