Hello Guido, We'd like to make you aware of an issue with the AC_CONFIG_FILES macro that affects the AX_PREFIX_CONFIG_H macro as it is in the autoconf archive: http://lists.gnu.org/archive/html/bug-autoconf/2006-03/msg00038.html (including an analysis in the following subthread; this post is actually just following up the thread).
The gist here is that, due to backward compatibility, the first argument of AC_CONFIG_FILES is white-space split before it is m4-expanded, and this will cause the macro to fail loudly with the next Autoconf release. Please consider the change mentioned in the link above which should be backwards-compatible to Autoconf-2.50. You could also consider switching from ifelse to using m4_if, which has been documented since 2.52 and defined since 2.50. We still need to document this in autoconf.texi. Cheers, Ralf
