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[PATCH] Document AC_FUNC_FORK cache variables

From: Colin Watson
Subject: [PATCH] Document AC_FUNC_FORK cache variables
Date: Sun, 19 Dec 2010 23:33:46 +0000
User-agent: Mutt/1.5.18 (2008-05-17)

I maintain a package where I'd like to fail at configure time if fork
doesn't work.  This is slightly awkward because 'info autoconf' doesn't
document the cache variables for AC_FUNC_FORK, so I don't know whether I
can rely on them in future versions of Autoconf.  Would you be willing
to document them as follows and thereby promise that they will continue
to work?

2010-12-19  Colin Watson  <address@hidden>

        * doc/autoconf.texi (Particular Functions): Document AC_FUNC_FORK
        cache variables.

diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 5fbfb79..1c29f0d 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -4986,6 +4986,9 @@ yourself in new code:
 @end group
 @end example
+The results of this macro are cached in the @code{ac_cv_func_fork_works} and
address@hidden variables.
 @end defmac


Colin Watson                                       address@hidden

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