Sorry, I've accidentally dropped an email about `make -U'. I think that it's not needed, since the functionality can easily be achieved by running "make FOO=", i.e., assigning an empty value. Remember that command line variables take precedence over globals, so the following makefile,
FOO+= bar
all:
@echo ${FOO}
when run as ``make FOO=foo'', will print just ``foo''.
Cheers,
--
Ruslan Ermilov Sysadmin and DBA,
[EMAIL PROTECTED] Sunbay Software Ltd,
[EMAIL PROTECTED] FreeBSD committer
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