libX11: enable COMPOSECACHE?

[uli42]

Upstream has this configure switch:
--disable-composecache Disable compose table cache support

(so thje default is enable which results in -DCOMPOSECACHE)

We currently do not use this in libX11. Can we enable it?

Note: this way I found some unclean variable handling stuff in upstream imLcIm.c which should be reported.

[sunweaver]

IMHO we should enable it. From the code I read, it does not heard and then nxagent's libNX_X11 is compliant with libX11.

However, the COMPOSECACHE stuff only gets use if either of the folders exists:

/var/cache/libx11/compose/
    System-wide cache directory for compiled compose files. 
$HOME/.compose-cache/
    Per-user cache directory for compiled compose files. 

I never tried it, but if you create .compose-cache in your home, do X11 applications start populating it?

[uli42]

Hmm, I do not have these directories, but I have

 ls -l /usr/share/X11/locale/compose.dir
-rw-r--r-- 1 root root 36107 Dez  4  2013 /usr/share/X11/locale/compose.dir

Here are some manuals:

https://www.x.org/archive/X11R7.5/doc/man/man8/mkcomposecache.8.html
ftp://www.x.org/pub/xorg/X11R7.5/doc/man/man5/Compose.5.html

On Tue, Oct 18, 2016 at 8:09 PM, Mike Gabriel notifications@github.com
wrote:

IMHO we should enable it. From the code I read, it does not heard and then
nxagent's libNX_X11 is compliant with libX11.

However, the COMPOSECACHE stuff only gets use if either of the folders
exists:

/var/cache/libx11/compose/
System-wide cache directory for compiled compose files.
$HOME/.compose-cache/
Per-user cache directory for compiled compose files.

I never tried it, but if you create .compose-cache in your home, do X11
applications start populating it?

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