Re: make problem under freebsd

[Lorenzo Bettini]

Paul Smith wrote:
> %% Lorenzo Bettini <address@hidden> writes:
>   lb> foo.o: foo.c
>   lb>         gcc -c $< -o $@
>
>   lb> in that $< is not expanded...
>
>   lb> is this a known bug?
>
> Depends on what you mean by "bug".  It's not a bug in that it's expected
> behavior in some versions of make that automatic variables like $< are
> not available in explicit rules: they're only available in
> implicit/suffix rules.

ops... I didn't know that.

> It is a "bug" in that this behavior is stupid and broken.  But that's a
> problem with the version of make you're using, not automake or autoconf.

indeed I never said it was a problem with automake and autoconf, but 
with make :-)

> On Linux etc. you're using GNU make which doesn't have this problem; I
> guess the BSD version of make that comes with FreeBSD etc. does.

it really does

> If you are seeing this problem then it is most likely due to customized
> make rules added by the package maintainer... if that's you, you should
> avoid them; if it's someone else you should file a bug report about
> this.

indeed I am the maintainer...  the strange thing is that I have never 
been reported about such a problem by freebsd users.

now that I know this I'll avoid $< in explicit rules!

thanks
        Lorenzo

--
+-----------------------------------------------------+
|  Lorenzo Bettini          ICQ# lbetto, 16080134     |
|  PhD student in Computer Science                    |
|  Dip. Sistemi e Informatica, Univ. di Firenze       |
|  Tel +39 055 4796741, Fax +39 055 4796730           |
|  Florence - Italy         (Linux User # 158233)     |
|  Home Page        : http://www.lorenzobettini.it    |
|  E-Mail           : address@hidden            |
|  http://music.dsi.unifi.it         XKlaim language  |
|  http://www.lorenzobettini.it/purple    Cover Band  |
|  http://www.gnu.org/software/src-highlite           |
|  http://www.gnu.org/software/gengetopt              |
+-----------------------------------------------------+