Zsh Mailing List Archive Messages sorted by: Reverse Date, Date, Thread, Author

Re: BSD make and '$<'

X-seq: zsh-workers 1843
From: Zefram <A.Main@xxxxxxxxxxxxxxxxx>
To: kunihiro@xxxxxxxxx
Subject: Re: BSD make and '$<'
Date: Wed, 31 Jul 1996 03:46:49 +0100 (BST)
Cc: zsh-workers@xxxxxxxxxxxxxxx, mio@xxxxxxxxx
In-reply-to: <199607302024.FAA09607@xxxxxxxxxxxxxxxxx> from "kunihiro@xxxxxxxxx" at Jul 31, 96 05:24:17 am

>Dose anybody know BSD make thinking '$<' should be used always with
>implicit rule?  I'm not sure...

What I know about portable Makefile writing suggests that $< can only
be relied upon in an implicit rule (consider: it could refer to more
than one file, or none, in an explicit rule).  $@ is the only special
variable that is always available in all rules.

>  zsh.info: zsh.texi
>! 	-$(MAKEINFO) -I$(srcdir) $<

So I'm not surprised at the above failing with some makes.

>  zsh.info: zsh.texi
>! 	-$(MAKEINFO) -I$(srcdir) $?

But that's not the best way to fix it -- better to use the actual
filename.

-zefram

References:
- BSD make and '$<'
  - From: kunihiro

Messages sorted by: Reverse Date, Date, Thread, Author