build-gcc file exists

[fennectech]

_1.diff
patching file gcc/config/arm/t-arm-elf
patching file libgcc/Makefile.in
ROCKBOXDEV: mkdir build-gcc
mkdir: cannot create directory ‘build-gcc’: File exists

okay so im building the cross compiler after my battery died mid compile   there is no clean command so what do i do to clean up the system for a second attempt at building the cross compiler
or a list of files and folders this script creats i can turn into a command to clean it up

[fennectech]

i solved the priblem by running sudo rm -r /tmp/rbdev-build/