Re: test in a m4 macro and variable created from pushdef

[Eric Blake]

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According to Vincent Torri on 8/9/2007 12:11 PM:
> 
> I have another problem, which is similar. The problem is the result of
> AM_CONDITIONAL. Here is my macro:
> 
> AM_CONDITIONAL(BUILD_DRIVER_[]UP, test "x${use_]DOWN[}" = "xyes")

Follow the quoting rule of thumb - if you don't want things expanded
immediately, then use one level of [] per () to protect the argument
collection scan, thereafter, use nested quotes to control how the
expansion is parsed.  You want to make sure that UP and DOWN are
independent tokens after the AM_CONDITIONAL is expanded, so this pattern
should do it:

AM_CONDITIONAL([BUILD_DRIVER_[]UP, test "x${use_[]DOWN}" = "xyes"])

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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