Hello Vincent,
* Vincent Torri wrote on Fri, Aug 10, 2007 at 07:51:00AM CEST:
> On Thu, 9 Aug 2007, Eric Blake wrote:
>
>> 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 [][,()].
>
> both solutions:
>
> AM_CONDITIONAL([BUILD_DRIVER_]UP, [test "x${use_]DOWN[_driver}" = "xyes"])
> AM_CONDITIONAL([BUILD_DRIVER_]UP, test "x${[use_]DOWN[_driver]}" = "xyes")
>
> are working
One check to avoid further hidden issues is to
grep UP configure
grep DOWN configure
There seems to be at least one harmless unexpanded instance left in a
comment, hopefully fixed by the (untested) patch below. OK to apply?
Cheers,
Ralf
2007-08-10 Ralf Wildenhues <Ralf.Wildenhues@xxxxxx>
* lib/autoconf/general.m4 (_AC_ENABLE_IF): Expand macro
arguments in comment.
Report by Vincent Torri <vtorri@xxxxxxxxxxxx>.
Index: lib/autoconf/general.m4
===================================================================
RCS file: /cvsroot/autoconf/autoconf/lib/autoconf/general.m4,v
retrieving revision 1.952
diff -u -r1.952 general.m4
--- lib/autoconf/general.m4 20 Jul 2007 23:11:52 -0000 1.952
+++ lib/autoconf/general.m4 10 Aug 2007 17:43:07 -0000
@@ -1389,7 +1389,7 @@
# OPTION is either "enable" or "with".
#
m4_define([_AC_ENABLE_IF],
-[# Check whether --$1-$2 was given.
+[@%:@ Check whether --$1-$2 was given.
_AC_ENABLE_IF_ACTION([$1], m4_translit([$2], [-.], [__]), [$3], [$4])[]dnl
])
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