flac dev - Jan 2013 - flac fails to build shared library under MinGW

After applying two patches:

1. http://lists.xiph.org/pipermail/flac-dev/2008-August/002570.html
2.
http://wolf-u.li/4567/fehler-waehrend-der-kompilierung-von-flac-memcmp-was-not-declared-in-this-scope/

I was able to build flac without error, and noticed that shared library is
silently skipped.

After searching the logs I found this line as suspect:

   "libtool: link: warning: undefined symbols not allowed in
i686-pc-mingw32 shared libraries"

and Google exposed this message:

3.
http://mingw-users.1079350.n2.nabble.com/Undefined-symbols-link-error-from-libtool-td5105758.html

which in short suggests passing "-no-undefined" flag to this libtool
command.

As "configure" is >25K lines long, I ask for help where to apply
this patch


Thanks
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klo uo wrote:


<snip>

I suggest that you compile FLAC out of the git repository
which is here:

    https://git.xiph.org/?p=flac.git;a=summary

We're currently working up to a release.

Erik
-- 
----------------------------------------------------------------------
Erik de Castro Lopo
http://www.mega-nerd.com/

On Thu, Jan 17, 2013 at 8:04 AM, Erik de Castro Lopo
<mle+la at mega-nerd.com>wrote:
> I suggest that you compile FLAC out of the git repository
> which is here:
>
>     https://git.xiph.org/?p=flac.git;a=summary
>
> We're currently working up to a release.
>
>
Thanks for your fast reply and the tip, but I can't generate configure with
git version:

$ ./autogen.sh
libtoolize: putting auxiliary files in `.'.
libtoolize: copying file `./ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'.
libtoolize: copying file `m4/libtool.m4'
libtoolize: copying file `m4/ltoptions.m4'
libtoolize: copying file `m4/ltsugar.m4'
libtoolize: copying file `m4/ltversion.m4'
libtoolize: copying file `m4/lt~obsolete.m4'
configure.ac:56: installing `./compile'
configure.ac:35: installing `./config.guess'
configure.ac:308: required file `./config.rpath' not found
configure.ac:35: installing `./config.sub'
configure.ac:26: installing `./install-sh'
configure.ac:26: installing `./missing'
examples/c/decode/file/Makefile.am: installing `./depcomp'
autoreconf-2.68: automake failed with exit status: 1
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