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Re: AC_DEFUN: default values of optional arguments
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From: |
Eric Blake |
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Subject: |
Re: AC_DEFUN: default values of optional arguments |
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Date: |
Fri, 18 Sep 2009 12:08:45 -0600 |
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User-agent: |
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 9/18/2009 11:49 AM:
> How do I give an optional argument its default value?
m4_default([$2],[default text])
expands to $2 if it was provided, or default text otherwise.
AC_DEFUN([FOO], [...
opt=m4_default([$2],[true])
])
- --
Don't work too hard, make some time for fun as well!
Eric Blake address@hidden
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