On Thu, 15 Oct 2009, Eric Blake wrote:
Thanks; I squashed the two fixes into one commit, added a ChangeLog, and
applied.
Hi Eric,
thanks.
----------------
I'd like to report two more Autoconf problems. Both are, however, uncritical
and should not delay the release of 2.65.
---------
(1) Some time ago I mad a mistake and wrote
AC_ARG_WITH([yyy=DIR],
AS_HELP_STRING([--with-yyy],
[Use DIR for ...]))
instead of
AC_ARG_WITH([yyy],
AS_HELP_STRING([--with-yyy=DIR],
[Use DIR for ...]))
with fairly strange results and hard-to-interprete error/warning messages.
IMHO the macros AC_ARG_{WITH,ENABLE} ought to either check or sanitize their
first argument.
---------
(2) I use a multi-line output variable to generate a complete make rule,
i.e., something like
RULE='TARGET: DEPENDENCIES
COMMAND'
AC_SUBST([RULE])
AM_SUBST_NOTMAKE([RULE])
in configure.ac and
@RULE@
in Makefile.am, and this nicely generates rules used to rebuild other parts
of the tree.
There is, however, a minor problem: The list of output variables in
config.log is sorted after expanding all variables with a rather unwanted
effect on multi-line values. This isn't really a problem except when
debugging complex macros.
I think the code, in general.m4 starting with AS_BOX([Output variables.]),
could easily be modified to first sort the variable names and insert their
values afterwards.
----------------
Regards
Peter Breitenlohner <peb@xxxxxxxxxxxx>
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