Let configure find all needed files with guile-2.2

Let configure find all needed files with guile-2.2

in configure.ac
Adds support for STEPMAKE_GUILE
Update guile-versions for STEPMAKE_GUILE and STEPMAKE_GUILE_DEVEL

in aclocal.m4
update the list to search for guile-config

Many thanks to Antonio Ospite

[thomasmorley651, 2017-03-28 09:58:21]

This is needed to compile LilyPond with guile-2.2.x

Please review.

[thomasmorley651, 2017-03-28 10:05:19]

fix indentation, comment

[lemzwerg, 2017-03-28 10:18:50]

LGTM

https://codereview.appspot.com/320800043/diff/20001/aclocal.m4
File aclocal.m4 (right):

https://codereview.appspot.com/320800043/diff/20001/aclocal.m4#newcode661
aclocal.m4:661: for r in $GUILE_CONFIG $target_guile_config $host_guile_config
$build_guile_config guile-config guile-2.2-config guile2.2-config guile2-config
guile2.0-config guile-2.0-config guile1-config guile1.9-config guile1.8-config
guile-1-config guile-1.9-config guile-1.8-config; do
Please break this into lines shorter than 80 characters.

[thomasmorley651, 2017-03-28 12:50:22]

Werner's comment

[thomasmorley651, 2017-03-28 12:53:55]

https://codereview.appspot.com/320800043/diff/20001/aclocal.m4
File aclocal.m4 (right):

https://codereview.appspot.com/320800043/diff/20001/aclocal.m4#newcode661
aclocal.m4:661: for r in $GUILE_CONFIG $target_guile_config $host_guile_config
$build_guile_config guile-config guile-2.2-config guile2.2-config guile2-config
guile2.0-config guile-2.0-config guile1-config guile1.9-config guile1.8-config
guile-1-config guile-1.9-config guile-1.8-config; do
On 2017/03/28 10:18:50, lemzwerg wrote:
> Please break this into lines shorter than 80 characters.

Keeping 80 characters lines is pretty inconsistent handled in this file.

Though, done.

[lemzwerg, 2017-03-28 13:35:52]

https://codereview.appspot.com/320800043/diff/40001/aclocal.m4
File aclocal.m4 (right):

https://codereview.appspot.com/320800043/diff/40001/aclocal.m4#newcode666
aclocal.m4:666: do
Just curious: What's the reason to have 1 - 1.9 - 1.8 - 1 - 1.9 - 1.8 as the
order of the last elements?

I would have expected  1.9 - 1.9 - 1.8 - 1.8 - 1 - 1 instead.

[thomasmorley651, 2017-03-28 15:04:47]

https://codereview.appspot.com/320800043/diff/40001/aclocal.m4
File aclocal.m4 (right):

https://codereview.appspot.com/320800043/diff/40001/aclocal.m4#newcode666
aclocal.m4:666: do
On 2017/03/28 13:35:51, lemzwerg wrote:
> Just curious: What's the reason to have 1 - 1.9 - 1.8 - 1 - 1.9 - 1.8 as the
> order of the last elements?
> 
> I would have expected  1.9 - 1.9 - 1.8 - 1.8 - 1 - 1 instead.

Tbh, I've no clue.

To help moving LilyPond to guile-2.x I plan to tackle uncontroversal things
first. All those low hanging fruits or already fallen down to the ground, just
picking them up. So that those annoying warnings about deprecated this and that
are out of the way, etc

Though, without this one in master testings with guile-2.2.x are unconvenient.

Actually I've put in guile-2-configs where it workes, but didn't even try to
improve anything else.

Maybe someone else can answer.