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According to Benoit SIGOURE on 8/9/2007 9:20 PM:
>>>
>>> AM_CONDITIONAL(BUILD_DRIVER_[]UP, test "x${use_]DOWN[}" = "xyes")
>>
>>
>> AM_CONDITIONAL([BUILD_DRIVER_[]UP, test "x${use_[]DOWN}" = "xyes"])
>
> Hum, shouldn't this be:
> AM_CONDITIONAL([BUILD_DRIVER_[]UP], [test "x${use_[]DOWN}" = "xyes"])
> instead?
Needless to say, I only typed a quick answer, rather than trying to test
it. There are two arguments to AM_CONDITIONAL, so both should be quoted.
Then you have a choice:
AM_CONDITIONAL([BUILD_DRIVER_[]UP], [...])
calls AM_CONDITIONAL with a string for the first argument; wherever
AM_CONDITIONAL outputs that string, the string is subject to reparsing,
and it is the reparsing that sees that UP is a macro.
AM_CONDITIONAL([BUILD_DRIVER_]UP, [...])
calls AM_CONDITIONAL with a string consisting of UP already expanded (ok
if UP is alphanumeric, but with the potential for m4 syntax confusion if
it contains anything in the character class [][,()].
- --
Don't work too hard, make some time for fun as well!
Eric Blake ebb9@xxxxxxx
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