File overwrite prompt shows bad fielsize for files over 4GB

[bilbo]

When I want copy file 6963138235 bytes large (6.9GB) over another file with same size, the prompt "File exists" asking whether to overwrite the file or not does not report correct size of the files:

Target file "/m/f/Doc/Op~05.osm.bz2" already exists!

Source date: Aug  8 01:43, size 2668170939
Target date: Aug  8 01:43, size 2668170939

Using Debian unstable, x86_64
File size in other places (file panels...) is shown correctly

[andrew_b]

Did you built MC with --enable-largefile option?

[bilbo]

Seems to be enabled by default, but I run "make clean", rerun configure with --enable-largefile explicitly specified and the bug is still there

But when I looked in config.h, I saw this:

/* Number of bits in a file offset, on hosts where this is settable. */
/* #undef _FILE_OFFSET_BITS */

/* Define for large files, on AIX-style hosts. */
/* #undef _LARGE_FILES */

and in config.log

configure:13852: checking for _FILE_OFFSET_BITS value needed for large files
configure:13877: gcc -std=gnu99 -c -g -O2  conftest.c >&5
configure:13877: $? = 0
configure:13909: result: no

Maybe configure didn't figure out that I have 64bit system? But file sizes in panels are correct...