On Oct 19, 2023, Thomas Schwinge <[email protected]> wrote:
> On 2023-10-18T15:42:18+0100, R jd <[email protected]> wrote:
>> I guess I can ask, why there is not a recursive approach for configuring
>> GCC. e.g. AC_SUBDIRS in the top level?
> ('AC_CONFIG_SUBDIRS' you mean.) You know, often it just takes someone to
> ask the right questions... ;-)
> What do people think about the attached
> "Enable top-level recursive 'autoreconf'"? Only lightly tested, so far.
Interesting idea!
It is a little hackish, in that it seems to exploit an implementation
detail in AC_CONFIG_SUBDIRS rather than a documented feature.
I like it!
The autoconf documentation suggests that optional directories can be
tested for:
if test -d "$srcdir/foo"; then
AC_CONFIG_SUBDIRS([foo])
fi
We could use a macro that takes a list and iterates over the list (untested):
dnl Handle a list of optional subdirs.
dnl After AC_OUTPUT, affects autoreconf runs, but not configure runs.
AC_DEFUN([AC_CONFIG_SUBDIRS_OPT], [
m4_foreach_w([dir], [$1], [
if test -d "$srcdir/dir"; then
AC_CONFIG_SUBDIRS(dir)
fi
])
])
Thanks,
--
Alexandre Oliva, happy hacker https://FSFLA.org/blogs/lxo/
Free Software Activist GNU Toolchain Engineer
More tolerance and less prejudice are key for inclusion and diversity
Excluding neuro-others for not behaving ""normal"" is *not* inclusive
