Re: strange result for escaping "\" with other font-name

[Masamichi HOSODA]

>>>>>>>>>> Second, your 2.19.26's fontconfig configure files
>>>>>>>>>> do not seem to have substitute settings.
>>>>>>>>>
>>>>>>>>> It's not clear to me why this happens. Is it a LilyPond-problem or
>>>>>>>>> something at my part?
>>>>>>>>> With 2.18.2 and 2.19.26 I'm on a 64-bit LINUX
>>>>>>>>> Trying with a build from master, lilyDev (32bit Debian), I do get
>>>>>>>>> substitute settings
>>>>>>>>>
>>>>>>>>> If I try
>>>>>>>>> \version "2.19.26"
>>>>>>>>> \markup \override #'(font-name . "not existing font") "\\<==what?"
>>>>>>>>>
>>>>>>>>> I do get substitute settings as well.
>>>>>>>>
>>>>>>>> According to the log file, your 2.19.26's fontconfig
>>>>>>>> default top configure file is
>>>>>>>> /home/hermann/lilydevel/usr/etc/fonts/fonts.conf
>>>>>>>>
>>>>>>>> And, maybe,
>>>>>>>> /home/hermann/lilydevel/usr/etc/fonts/local.conf
>>>>>>>> /home/hermann/lilydevel/usr/etc/fonts/conf.d/*.conf
>>>>>>>> are fontconfig auxiliary configure files.
>>>>>>>>
>>>>>>>> Your 2.18.2's one are
>>>>>>>> /home/hermann/lilypond/usr/etc/fonts/fonts.conf
>>>>>>>> /home/hermann/lilypond/usr/etc/fonts/local.conf
>>>>>>>> /home/hermann/lilypond/usr/etc/fonts/conf.d/*.conf
>>>>>>>>
>>>>>>>> Would you compare them?
>>>>>>>
>>>>>>> I don't have the skills to appraise what I see.
>>>>>>> Here's a simple diff. Is this sufficient?
>>>>>>>
>>>>>>> diff /home/hermann/lilydevel/usr/etc/fonts/fonts.conf
>>>>>>> /home/hermann/lilypond/usr/etc/fonts/fonts.conf
>>>>>>> 28,29d27
>>>>>>> <     <dir prefix="xdg">fonts</dir>
>>>>>>> <     <!-- the following element will be removed in the future -->
>>>>>>> 39c37
>>>>>>> <         <edit name="family" mode="assign" binding="same">
>>>>>>> ---
>>>>>>>>         <edit name="family" mode="assign">
>>>>>>> 51c49
>>>>>>> <         <edit name="family" mode="assign" binding="same">
>>>>>>> ---
>>>>>>>>         <edit name="family" mode="assign">
>>>>>>> 63c61
>>>>>>> <         <edit name="family" mode="assign" binding="same">
>>>>>>> ---
>>>>>>>>         <edit name="family" mode="assign">
>>>>>>> 76,77d73
>>>>>>> <     <cachedir prefix="xdg">fontconfig</cachedir>
>>>>>>> <     <!-- the following element will be removed in the future -->
>>>>>>
>>>>>> Would you try following command?
>>>>>>
>>>>>> $ diff -ursN /home/hermann/lilydevel/usr/etc/fonts 
>>>>>> /home/hermann/lilypond/usr/etc/fonts
>>>>>
>>>>> I did
>>>>> diff -ursN /home/hermann/lilydevel/usr/etc/fonts
>>>>> /home/hermann/lilypond/usr/etc/fonts > log.txt 2>&1
>>>>>
>>>>> last line reads:
>>>>> Files /home/hermann/lilydevel/usr/etc/fonts/local.conf and
>>>>> /home/hermann/lilypond/usr/etc/fonts/local.conf are identical
>>>>>
>>>>> Do you need the entire file (it has 2000 lines)?
>>>>
>>>> Yes, please.
>>>
>>> Here you are
>>
>> Thank you.
>>
>> It seems to lack the necessary files.
>> How do you install 2.19.26?
> 
> I download
> lilypond-2.19.26-1.linux-64.sh
> from
> http://lilypond.org/development.html
> navigate to Desktop (where it is stored) and then:
> sh lilypond-2.19.26-1.linux-64.sh
> 
>>
>> Do following files exist?
>> /home/hermann/lilydevel/usr/etc/fonts/conf.avail/*.conf
> 
> No !!
> 
>> /home/hermann/lilydevel/usr/etc/fonts/conf.d/*.conf
> 
> yes
> 
>>
>> If not, would you try to re-install LilyPond?
>>
>> Or, would you try to install official web site's LilyPond 2.19.26 binary?
> 
> I uninstalled it and re-installed it, with a fresh download of
> lilypond-2.19.26-1.linux-64.sh
> (refusing to rename it for now)
> exercising  all the steps listed above.
> 
>>
>> And, just idea,
>> it might be solved by copying official binary's
>> lilypond/usr/etc/fonts/*
>> files to
>> /home/hermann/lilydevel/usr/etc/fonts/
>> .
> 
> Not sure what exactly you suggest.
> I tried to copy/paste conf.avail from 2.18.2 to 2.19.26
> The issue persists, though.
> 
> Obviously conf.avail is missing for me with 2.19.26. If it's my
> problem then it's bad, but if it's a general problem for 64-bit-Linux
> then it's worse.
> 
> Best would be others with 64-bit Linux could do testing for:
> 
> \version "2.19.26"
> \markup \override #'(font-name . "not a font") "\\<==what?"
> 
> 
> or look, whether
> lilypond/usr/etc/fonts/conf.avail/*.conf
> exists at all.

I've tried to install official 2.19.26.
I've found GUB's problem.

I understand correctly,
Most platform's 2.19.26 official binaries have this problem.
Only mingw (Windows) platform does not have this problem.

The cause is that fontconfig conf files symbolic links are absolute path.
Installed directory is different in each environment.
So absolute path can not find link destination.

Windows can not handle symbolic links.
Symbolic link is not used. conf files are copied.
So installed conf files are exist. It's no problem.

To fix installed LilyPond is here.

cd lilypond/usr/etc/fonts/conf.d
rm -fr *.conf
ln -s ../../../share/fontconfig/conf.avail/10-scale-bitmap-fonts.conf
ln -s ../../../share/fontconfig/conf.avail/20-unhint-small-vera.conf
ln -s ../../../share/fontconfig/conf.avail/30-metric-aliases.conf
ln -s ../../../share/fontconfig/conf.avail/30-urw-aliases.conf
ln -s ../../../share/fontconfig/conf.avail/40-nonlatin.conf
ln -s ../../../share/fontconfig/conf.avail/45-latin.conf
ln -s ../../../share/fontconfig/conf.avail/49-sansserif.conf
ln -s ../../../share/fontconfig/conf.avail/50-user.conf
ln -s ../../../share/fontconfig/conf.avail/51-local.conf
ln -s ../../../share/fontconfig/conf.avail/60-latin.conf
ln -s ../../../share/fontconfig/conf.avail/65-fonts-persian.conf
ln -s ../../../share/fontconfig/conf.avail/65-nonlatin.conf
ln -s ../../../share/fontconfig/conf.avail/69-unifont.conf
ln -s ../../../share/fontconfig/conf.avail/80-delicious.conf
ln -s ../../../share/fontconfig/conf.avail/90-synthetic.conf

I'll make GUB's patch.
Sorry.