I'm a bit rusty at gdb, but here's what I've been able to find:

I compiled coreutils with -ggdb3 and was able to see, that the test called gl_locale_name_posix, which used my systems current setlocale (do debugging symbols):

Breakpoint 5, 0x00007ffff7a582b4 in setlocale () from /usr/lib/libc.so.6

(gdb) step

Single stepping until exit from function setlocale,

which has no line number information.

gl_locale_name_posix (category=5, categoryname=0x4035f3 "LC_MESSAGES") at localename.c:2704

2704 }

(gdb)

gl_locale_name (category=5, categoryname=0x4035f3 "LC_MESSAGES") at localename.c:2854

2854 if (retval != NULL)

(gdb)

2855 return retval;

(gdb)

2858 }

(gdb)

test-localename.c:86: assertion 'strcmp (gl_locale_name (LC_MESSAGES, "LC_MESSAGES"), gl_locale_name_default ()) == 0' failed

retval from setlocale is:

(gdb) p retval

$11 = 0x606f00 "en_US.UTF-8"

So I'm unsure what to do next?

My GNU libc version is:

% pacman -Qi glibc

Name : glibc

Version : 2.19-5

Description : GNU C Library

Architecture : x86_64

[ ... ]

Build Date : 2014-05-16T10:15:30 CEST

Install Date : 2014-05-30T16:11:30 CEST

Thanks,

Henrik

On Sat, Jul 19, 2014 at 5:07 PM, Paul Eggert <eggert@cs.ucla.edu> wrote:

Henrik Juul Pedersen wrote:

gl_locale_name(LC_MESSAGES (int 5), 'LC_MESSAGES'): en_US.UTF-8
gl_locale_name_default(): C

Thanks, since LC_MESSAGES is supposed to be unset at that point, gl_locale_name appears to be the culprit. Can you use GDB to figure out why it's returning "en_US.UTF-8"? You may need to recompile with "gcc -O0 -g3" to get decent debugging output. Or, if you can't use GDB, just put in printf statements.