On Thu, 23 Jun 2005, Paul D. Smith wrote:
> %% Regarding followup to previous question; you wrote:
>
> rpjd> there's a top-level VERSION file, whose contents will be something
> rpjd> like "3.2.2". so, for now, i can use:
>
> rpjd> SRCDIR = [top of source tree]
> rpjd> FULL_VERSION := $(shell cat ${SRCDIR}/VERSION)
> rpjd> $(warning Full version is ${FULL_VERSION}.)
>
> rpjd> MAJOR_VERSION := $(shell expr ${FULL_VERSION} : "\([0-9]*\)")
> rpjd> $(warning version is ${MAJOR_VERSION}.)
>
> rpjd> even though the above works, i'm just betting there's a more natural
> rpjd> way to do either of:
>
> rpjd> 1) get the contents of a one-line text file
> rpjd> 2) extract the leading fully-numeric substring of a string
>
> rpjd> am i right? or is the above pretty much it?
>
> That's about it as far as getting the contents. You can get the
> major version much more easily, though:
>
> MAJOR_VERSION := $(firstword $(subst ., ,$(FULL_VERSION)))
>
> If the VERSION file had a make-like syntax, like:
>
> FULL_VERSION = 3.2.2
>
> then you could, of course, just include it.
nope, it really is just the version string, but i can at least do the
firstword/subst trick on that. thanks.
rday
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