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Re: How do I determine if a function is defined?
From: |
Rob Browning |
Subject: |
Re: How do I determine if a function is defined? |
Date: |
Sun, 28 Apr 2002 20:28:55 -0500 |
User-agent: |
Gnus/5.090006 (Oort Gnus v0.06) Emacs/21.2 (i386-debian-linux-gnu) |
Bruce Korb <address@hidden> writes:
> I have a program that defines the procedure ``set-writable''
>
> http://www.gnu.org/manual/autogen-5.3.6/html_chapter/autogen_3.html#SEC62
>
> but I added that procedure only recently. I want to use it if it is
> available, but skip it if it is not. That way, I do not require
> that people have an AutoGen version more recent than a year old.
Try
(if (defined? 'set-writable)
...)
Though you could also handle this during the make process via .in
files if you didn't want to have to run all the conditionals on every
load.
--
Rob Browning
rlb @defaultvalue.org, @linuxdevel.com, and @debian.org
Previously @cs.utexas.edu
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