#5147 Add whether to use OTF feature depending on Pango version

[Masamichi Hosoda]

Add whether to use OTF feature depending on Pango version

Issue 1388 requires Pango 1.38+ for using OpenType font feature.
However, LilyDev 4.1 has Pango 1.36.8.
So it cannot compile Issue 1388.

This commit makes LilyPond can be configured
without OpenType font feature if Pango is old.
Therefore, LilyPond become to be able to compile
even by LilyDev 4.1 that has old Pango.

However, the binary that compiled by LilyDev 4.1
cannot use OpenType feature.
It is required Pango 1.38+ if you'd like to use the feature.

* This patch requires Issue 1388 *
https://sourceforge.net/p/testlilyissues/issues/1388/
https://codereview.appspot.com/323850043

http://codereview.appspot.com/322100043

[Anonymous]

Passes make, make check and a full make doc.

[Anonymous]

patch on countdown for June 20th

[Anonymous]

Patch counted down - please push.

Hosoda-san can push this at the same time he pushes the fix for https://sourceforge.net/p/testlilyissues/issues/1388

[Masamichi Hosoda]

I've pushed to staging.

commit f75eceb27a4b630d4e898b1d93e3b051f969ff5e
Issue 5147: Add whether to use OTF feature depending on Pango version

[Federico Bruni]

I've seen the discussion about LilyDev only now. Thanks Masamichi for providing a workaround!

For the records, the new container and full image I've recently built¹ is based on Fedora 26, where Pango is currently at version 1.40.6.

¹ https://lists.gnu.org/archive/html/lilypond-devel/2017-07/msg00047.html