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Date:	Mon, 28 Sep 2009 22:53:32 -0500
From:	"Yaakov (Cygwin/X)" <yselkowitz AT users DOT sourceforge DOT net>
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To:	cygwin AT cygwin DOT com
Subject:	Re: Compiling id3v2
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On 26/09/2009 20:35, drbob wrote:
> I've been trying to compile the id3v2 utility
> <http://id3v2.sourceforge.net/>  in cygwin. I downloaded, compiled and
> installed libid3<http://id3lib.sourceforge.net/>  with no issues.

Actually, your issue is id3lib, see below.

> My first attempt to compile id3v2 failed due to errors in the makefile
> which were fixed by using this patch from gentoo:
> <http://bugs.gentoo.org/show_bug.cgi?id=131700>
>
> I then saw the following errors when I tried to compile:
>
>> $ make
>> c++ -L/usr/local/lib -pedantic -Wall -o id3v2 convert.o list.o id3v2.o genre.o -g -lz -lid3
>> /usr/local/lib/libid3.a(utils.o): In function `_ZN24_GLOBAL__N__Z8mbstoucsSs9convert_iEPvSs':
                   ^^^^^^^^
>> /home/drbob/id3v2-0.1.11/id3lib-3.8.3/src/utils.cpp:142: undefined reference to `_libiconv'
>> /usr/local/lib/libid3.a(utils.o): In function `_ZN4dami7convertESs11ID3_TextEncS0_':
>> /home/drbob/id3v2-0.1.11/id3lib-3.8.3/src/utils.cpp:196: undefined reference to `_libiconv_open'
>> /home/drbob/id3v2-0.1.11/id3lib-3.8.3/src/utils.cpp:210: undefined reference to `_libiconv_close'
>> /usr/local/lib/libid3.a(io_decorators.o): In function `_ZN4dami2io16CompressedReaderC1ER10ID3_Readerj':
>> /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/bits/basic_string.h:1459: undefined reference to `_uncompress'
>> /usr/local/lib/libid3.a(io_decorators.o): In function `_ZN4dami2io16CompressedReaderC2ER10ID3_Readerj':
>> /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/bits/basic_string.h:1459: undefined reference to `_uncompress'
>> /usr/local/lib/libid3.a(io_decorators.o): In function `_ZN4dami2io16CompressedWriter5flushEv':
>> /home/drbob/id3v2-0.1.11/id3lib-3.8.3/src/io_decorators.cpp:271: undefined reference to `_compress'
>> collect2: ld returned 1 exit status
>> make: *** [id3v2] Error 1
>
> This was also a makefile problem.

Not in id3v2, but in id3lib.  id3v2 does not depend on libiconv nor 
zlib, but id3lib does.  Since you only made a static libid3, you would 
have to add a "-liconv -lz" to each and every package that links against 
libid3.

A better way of solving this is to build a shared libid3, resolving 
*its* dependencies at link time.  This requires a few patches:

http://cygwin-ports.svn.sourceforge.net/viewvc/cygwin-ports/ports/trunk/media/id3lib/

Or you can get binaries from Cygwin Ports.  If you have any questions on 
these Ports packages, please ask on Ports' mailing list.


Yaakov

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