Re: Issue 1683 in lilypond: The dynamic m is broken at staff-size-14

[lilypond]

Comment #21 on issue 1683 by percival.music.ca: The dynamic m is broken at  
staff-size-14
http://code.google.com/p/lilypond/issues/detail?id=1683

fontforge 20110222 contains extra checks for accuracy around overlaps.
http://fontforge.sourceforge.net/changelog.html

Given the number of problems that fontforge without --enable-double causes,  
I think we should insist that people have with with --enable-double.

1) could somebody add this to the build requirements docs?
2) could somebody add such a check to configure?  Maybe make it optional  
for now, but in a few months we'll make it required.
3) could somebody check whether lilydev currently uses --enable-double?