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bug#8718: error when using nested conditionals

From: Bruno Haible
Subject: bug#8718: error when using nested conditionals
Date: Fri, 10 Jun 2011 12:47:56 +0200
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> how about the following alternative (for all conditionals, or just for some
> of them, e.g., those under the regime of AM_IGNORE_UNDEFINED_CONDITIONALS):
> Replace the AC_MSG_ERROR() above by a warning and set both $1_TRUE and
> $1_FALSE to something that, when not hidden in a false branch of the
> Makefile, (1) triggers a make syntax error, and (2) contains sufficient info
> to deduce the cause for that error.

Sounds good. But gnulib would also need a way to disable the warning,
because otherwise the maintainers of packages that use gnulib come back to
me and ask how they can get rid of the warning.

In memoriam Lamana Ould Bou <http://fr.wikipedia.org/wiki/Lamana_Ould_Bou>

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