Hello Robert, and sorry for not replying on this earlier:
* Robert Collins wrote on Wed, Sep 23, 2009 at 10:03:42AM CEST:
> There was discussion about getting version numbers from VCS recently;
> I've done a slightly different thing for a while now:
> AC_DEFUN([SUBUNIT_MAJOR_VERSION], [0])
> AC_DEFUN([SUBUNIT_MINOR_VERSION], [0])
> AC_DEFUN([SUBUNIT_MICRO_VERSION], [2])
> AC_DEFUN([SUBUNIT_VERSION],
> [SUBUNIT_MAJOR_VERSION.SUBUNIT_MINOR_VERSION.SUBUNIT_MICRO_VERSION])
> AC_PREREQ([2.59])
> AC_INIT([subunit], [SUBUNIT_VERSION], [contact...])
> AC_SUBST([SUBUNIT_MAJOR_VERSION]) ...
>
> This works well, until gnits is added to AM_INIT_AUTOMAKE.
>
> It looks like it expects a literal, not a macro in AC_INIT ?
Yeah, the test unfortunately needs the version number literally at m4
time; you can achieve that with something like
m4_define([SUBUNIT_MAJOR_VERSION], [0])
m4_define([SUBUNIT_MINOR_VERSION], [0])
m4_define([SUBUNIT_MICRO_VERSION], [2])
m4_define([SUBUNIT_VERSION],
m4_defn([SUBUNIT_MAJOR_VERSION]).m4_defn([SUBUNIT_MINOR_VERSION]).m4_defn([SUBUNIT_MICRO_VERSION]))
AC_PREREQ([2.59])
AC_INIT([subunit], m4_defn([SUBUNIT_VERSION]), [contact...])
BTW, and this is why I'm adding bug-autoconf here: Not changing the
AC_DEFUNs here to m4_define causes Autoconf 2.65 to barf with
configure.ac:7: error: m4_divert_push: cannot change diversion to `GROW'
inside m4_expand
which seems a bit surprising to me. What's the NEWS entry that
described this change in behavior? Or was that always problematic
and we only didn't notice earlier by chance?
Thanks,
Ralf
