default_pre_build                                        &&
cd $SOURCE_DIRECTORY                                     &&
sed -i "s:CFLAGS=.*:CFLAGS=$CFLAGS:" Makefile            &&
sed -i "s:PREFIX=.*:PREFIX=$INSTALL_ROOT/usr:" Makefile  &&
sed -i "s:MANDIR=.*:MANDIR=\$(PREFIX)/share/man/man1:" Makefile

