[tex-live] mtxrun should write user luatex-cache to a user directory

[Vladimir Lomov]

Hi.
According to $TEXLIVEROOT/texmf/web2c/texmfcnf.lua
the generated cache is placed in TEXMFSYSVAR but not in
TEXMFVAR[=$HOME/.texlive2011/texmf-var].

Is that on purpose or just a "bug"?

Offending lines in texmfcnf.lua:
[file="texmfcnf.lua"]
...
            -- We have only one cache path but there can be more. The first writable one
            -- will be chosen but there can be more readable paths.

            TEXMFCACHE      = "$TEXMFSYSVAR;$TEXMFVAR",
            TEXMFCONFIG     = "home:.texlive2011/texmf-config",
...
[/file]

---
WBR, Vladimir Lomov

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