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Re: iterating over arguments
From: |
Eric Blake |
Subject: |
Re: iterating over arguments |
Date: |
Mon, 14 Sep 2009 06:07:48 -0600 |
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Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.23) Gecko/20090812 Thunderbird/2.0.0.23 Mnenhy/0.7.6.666 |
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According to Sam Steingold on 9/12/2009 10:16 PM:
>
> replacing "m4_toupper" with "upcase" resulted in a "good" configure with,
> e.g., "upcase(ffi)" instead of "FFI".
Where is upcase defined? It isn't provided by autoconf.
> replacing it with "m4_upcase" resulted in
>
> configure:4249: error: possibly undefined macro: m4_upcase
> If this token and others are legitimate, please use m4_pattern_allow.
> See the Autoconf documentation.
>
That's because there isn't a macro m4_upcase; it is spelled m4_toupper.
But I do see an issue with using m4_toupper - it does not quote its
result, so if the result resembles a macro name, that macro will be
expanded before anything else gets a chance to use the result of the
upper-casing. I don't think we can change the semantics of this (there
may be existing code relying on this), but we probably need to add safer
counterparts that return a quoted string.
- --
Don't work too hard, make some time for fun as well!
Eric Blake address@hidden
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- iterating over arguments, Sam Steingold, 2009/09/11
- Re: iterating over arguments, Ralf Wildenhues, 2009/09/13
- Re: iterating over arguments, Sam Steingold, 2009/09/13
- Re: iterating over arguments, Ralf Wildenhues, 2009/09/13
- Re: iterating over arguments, Sam Steingold, 2009/09/13
- Re: iterating over arguments, Eric Blake, 2009/09/14
- Re: iterating over arguments, Eric Blake, 2009/09/14
- Re: iterating over arguments, Sam Steingold, 2009/09/14
- Re: iterating over arguments, Eric Blake, 2009/09/14