Various error output caught within build

[MingcongBai]

/usr/lib/autobuild3/proc/50-build.sh: line 20: unalias: BUILD_START: not found
/usr/lib/autobuild3/proc/50-build.sh: line 20: unalias: BUILD_READY: not found
/usr/lib/autobuild3/proc/50-build.sh: line 20: unalias: BUILD_FINAL: not found
[WARN]: . /usr/lib/autobuild3/proc/50-build.sh returned 1.
[INFO]: Loaded library fileenum
[INFO]: Loaded library elf
[INFO]: Loaded library depset
[INFO]: Purging libtool archives from build tree.
[INFO]: Purging static libraries from build tree.
/usr/lib/autobuild3/filter/elf.sh: line 14: filter_elf_dep: command not found
[WARN]: filter_elf_dep ./meinproc5 : 0
[DEBUG]:Stripping ./meinproc5 ..
[INFO]: Creating empty postinst.
[INFO]: Creating empty prerm.
[INFO]: Creating empty postrm.
[INFO]: Creating empty preinst.

[Artoria2e5]

Fixed.