RM variable was introduced
Variables LN and LN_S were introduced
MKDIR variable was introduced
CLEANFILES_CMD and CLEANDIRS_CMD variables were introduced
MKDEP_SUFFIXES also contains .os and .op by default
A few notes about mkdep at installation time
UNINSTALL variable was introduced
Target "clean" does not remove .depend and .d files. Target "cleandir" does.
CC_PREFIX and CXX_PREFIX variables were introduced
mk/bmake.sys.mk was removed; minor clean-ups
stderr of rm(1) commands is not redirected to /dev/null anymore
CLEANFILES: only files created by mk-configure are listed.
Everything else, for example, *~, *.core, core etc. should be listed in
user's Makefile.inc
Avoid creating a .tmp file then mv(1); I need gmake`s .DELETE_ON_ERROR