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Date: Thu, 27 Jan 2011 13:16:51 +0100 (CET)
Subject: Re: Bug in libiconv?
From: simrw AT sim-basis DOT de
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> If that doesn't correct the issue...then I'd try to run your test case
> on linux, but *explicitly* using libiconv on that system, rather than
> (as is typically the case on linux) relying on the underlying glibc
> implementation of iconv functionality.
>
> Did this.  Here are the characteristics of the test case object and
> executable:
>
> $ ldd ./foo
>         linux-vdso.so.1 =>  (0x00007fff51928000)
>         libiconv.so.2 => /home/me/libiconv/_inst/lib/libiconv.so.2
> (0x00007f0b7d7dd000)
>         libc.so.6 => /lib64/libc.so.6 (0x0000003d5b400000)
>         /lib64/ld-linux-x86-64.so.2 (0x0000003d5b000000)
> $ nm foo.o | grep ' U '
>                  U __errno_location
>                  U exit
>                  U fprintf
>          >>      U iconv
>          >>      U iconv_close
>          >>      U iconv_open
>                  U printf
>                  U setlocale
>                  U stderr
>                  U strerror
>                  U strlen

IMHO, that is not correctly compiled. You are still using
the version in glibc.
libiconv only has "libiconv_open", "libiconv_close" and "libiconv".
Looks like there is missing include path.
eg.
gcc -I/home/me/libiconv/_inst/include -o foo foo.c
-L/home/me/libiconv/_inst/lib -liconv

iconv.h in libiconv has eg.
#define iconv_open libiconv_open

The "nm" should look like this -
                 U __errno_location
                 U exit
                 U fprintf
                 U libiconv
                 U libiconv_close
                 U libiconv_open
                 U printf
                 U setlocale
                 U stderr
                 U strerror

Roger


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