mac web fontconfig slowdown

[Jim Tisdall]

on mac os x 10.11.2, lilypond 2.18.2, plenty nice mac pro plenty ram


Serious slowdown due to font configuration - 30 seconds delay
while "FontConfig" is called - happens when you do a
lilypond -V   for instance.

Fixed from command line using /opt/local/bin/fc-cache
for each user (root, me, ...) which creates files
.lilypond-fonts.cache-2 in home directories

But I still have delay problem running lilypond from a web program -
I use user:group _www:_www which works fine for everything but this.
30 second delay.  (No home directory for _www due to security)

Admittedly I'm not expert at font management.  Any way to have every
user of lilypond on my system use a good font cache?

Here's parts of my detailed DEBUG output from web invocation:

Log level set to 287
Relocation: is absolute:
argv0=/Applications/LilyPondDevel.app/Contents/Resources/bin/lilypond

etc etc

Setting FONTCONFIG_FILE to
/Applications/LilyPondDevel.app/Contents/Resources/bin/../etc/fonts/fonts.conf
Setting FONTCONFIG_PATH to
/Applications/LilyPondDevel.app/Contents/Resources/bin/../etc/fonts


etc. etc.

Initializing FontConfig...
Adding font directory:
/Applications/LilyPondDevel.app/Contents/Resources/share/lilypond/current/fonts/otf
Building font database...


.... here's where it hangs for about 30 seconds ....

etc. etc.

Interpreting music...
[/Applications/LilyPondDevel.app/Contents/Resources/share/lilypond/current/fonts/otf/emmentaler-20.otf]
[emmentaler-11_3.9453125]

etc etc