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Re: automake strips GNU make "else/endif" conditionals
From: |
Peter J. Farley III |
Subject: |
Re: automake strips GNU make "else/endif" conditionals |
Date: |
Tue, 07 Aug 2001 01:09:15 -0400 |
At 10:52 PM 8/6/01 -0600, Tom Tromey wrote:
>>>>>> "Peter" == Peter J Farley <address@hidden> writes:
>
>Peter> Does automake disallow using GNU make conditionals in rules?
>
>Not really, but they aren't supported either. Sometimes they "work"
>if you indent them. Try adding a leading space.
Well, I found a slightly different approach that worked, making the test into a
normal shell "if test x$THISVAR = x" test as a "normal" rule action, and this
satisfied my need.
Maybe next time I'll try adding a space and see how it "works". :)
>My thinking has been that one of automake's primary goals is to
>generate portable Makefiles. So supporting a nonportable feature
>isn't very important.
>
>That's been the overriding factor since supporting it is, I think, not
>actually very easy. For one thing, automake splits macro assignments
>and targets into two different sections of Makefile.in. So we would
>have to change how Makefile.in is generated for this to work reliably.
>
>Of course, like everything, this is open to debate. Perhaps it is
>worthwhile to expend the effort to make this work. I still don't
>think it is that important, though, so at least right now I don't plan
>to spend time on it.
Tom,
I can't disagree with your portability goal, and I was able to find a perfectly
acceptable solution to my problem, so I won't be asking you to work on it.
Thanks for the advice and honest reply.
---------------------------------------------------------
Peter J. Farley III (address@hidden)