fmtutil fails with default LANG=C.UTF-8, needs LANG=C

[Török Edwin]

Luatex fmtutil fails when LANG=C.UTF-8 (the default):
```

fmtutil [INFO]: /var/lib/texmf/web2c/pdftex/eplain.fmt installed.
fmtutil [ERROR]: running `luatex -ini -jobname=luatex -progname=luatex luatex.ini </dev/null' return status 1
fmtutil [ERROR]: return error due to options --strict
fmtutil [ERROR]: running `luatex -ini -jobname=dvilualatex -progname=dvilualatex dvilualatex.ini </dev/null' return status 1
fmtutil [ERROR]: return error due to options --strict
fmtutil [ERROR]: running `luatex -ini -jobname=pdfcsplain -progname=pdfcsplain -etex csplain.ini </dev/null' return status 1
fmtutil [ERROR]: return error due to options --strict
fmtutil [ERROR]: running `luatex -ini -jobname=dviluatex -progname=dviluatex dviluatex.ini </dev/null' return status 1
fmtutil [ERROR]: return error due to options --strict
fmtutil [ERROR]: running `luatex -ini -jobname=luacsplain -progname=luacsplain -etex csplain.ini </dev/null' return status 1
fmtutil [ERROR]: return error due to options --strict
fmtutil [ERROR]: running `luatex -ini -jobname=lualatex -progname=lualatex lualatex.ini </dev/null' return status 1
fmtutil [ERROR]: return error due to options --strict
fmtutil [INFO]: Disabled formats: 3
fmtutil [INFO]: Successfully rebuilt formats: 38
fmtutil [INFO]: Failed to build: 6 (luatex/luatex luatex/dvilualatex luatex/pdfcsplain luatex/dviluatex luatex/luacsplain luatex/lualatex)
fmtutil [INFO]: Total formats: 47
fmtutil [INFO]: exiting with status 6
```

Workaround is to set LANG=C as described here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=872012

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: texlive-luatex 2019.20190710-1
ProcVersionSignature: Ubuntu 5.3.0-24.26-generic 5.3.10
Uname: Linux 5.3.0-24-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
CurrentDesktop: LXQt
Date: Wed Dec 25 16:15:51 2019
InstallationDate: Installed on 2019-09-01 (115 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190830)
PackageArchitecture: all
SourcePackage: texlive-base
UpgradeStatus: No upgrade log present (probably fresh install)

[Norbert Preining (preining)]

On Wed, 25 Dec 2019, Török Edwin wrote:
> Luatex fmtutil fails when LANG=C.UTF-8 (the default):
> ```
>
> fmtutil [INFO]: /var/lib/texmf/web2c/pdftex/eplain.fmt installed.
> fmtutil [ERROR]: running `luatex -ini -jobname=luatex -progname=luatex luatex.ini </dev/null' return status 1
> fmtutil [ERROR]: return error due to options --strict

I cannot reproduce this on Debian:
$ export LANG=C.UTF-8
$ fmtutil-sys --byfmt lualatex
fmtutil: fmtutil is using the following fmtutil.cnf files (in precedence order):
fmtutil: /usr/share/texmf/web2c/fmtutil.cnf
fmtutil: /usr/share/texlive/texmf-dist/web2c/fmtutil.cnf
fmtutil: fmtutil is using the following fmtutil.cnf file for writing changes:
fmtutil: /etc/texmf/web2c/fmtutil.cnf
fmtutil [INFO]: writing formats under /var/lib/texmf/web2c
fmtutil [INFO]: --- remaking lualatex with luatex
fmtutil: running `luatex -ini -jobname=lualatex -progname=lualatex lualatex.ini' ...
This is LuaTeX, Version 1.10.0 (TeX Live 2019/Debian) (INITEX)
 restricted system commands enabled.
..
Transcript written on lualatex.log.
fmtutil [INFO]: log file copied to: /var/lib/texmf/web2c/luatex/lualatex.log
fmtutil [INFO]: /var/lib/texmf/web2c/luatex/lualatex.fmt installed.
fmtutil [INFO]: disabled formats: 1
fmtutil [INFO]: successfully rebuilt formats: 1
fmtutil [INFO]: not selected formats: 52
fmtutil [INFO]: total formats: 54
fmtutil [INFO]: exiting with status 0
$

Best

Norbert

--
PREINING Norbert http://www.preining.info
Accelia Inc. + IFMGA ProGuide + TU Wien + JAIST + TeX Live + Debian Dev
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