On Saturday 26 Nov 2011 23:50:24 Florian Philipp wrote:
> Am 27.11.2011 00:03, schrieb Samuraiii:
> > Hello fellow Gentoonians,
> > 
> > I have problem with Gnupg 2 and compress preference on keys.
> > 
> > When I recieve email which is for recipirnt with set compress preference
> > to BZIP2 Thunderbird (with enigmail) fails to decrypt it due this:
> > 
> > gpg command line and output:
> > /usr/bin/gpg2
> > gpg: invalid item `BZIP2' in preference string
> > gpg: invalid personal compress preferences
> > 
> > As I have set BZIP2 USE as global in make.conf I don't see why is not
> > working
> 
> > gpg --version returns:
> [...]
> 
> I've re-emerged gpg-2.0.17 (USE="nls bzip2) and cannot confirm this issue.
> 
> gpg --version
> gpg (GnuPG) 2.0.17
> libgcrypt 1.4.6
> Copyright (C) 2011 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.
> 
> Home: ~/.gnupg
> Supported algorithms:
> Pubkey: RSA, ELG, DSA
> Cipher: 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH, CAMELLIA128,
>         CAMELLIA192, CAMELLIA256
> Hash: MD5, SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
> Compression: Uncompressed, ZIP, ZLIB, BZIP2

I haven't remerged mine recently, but I have more detailed compression options 
it seems:
===============================
$ gpg --version
gpg (GnuPG) 2.0.17
libgcrypt 1.4.6
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Home: ~/.gnupg
Supported algorithms:
Pubkey: RSA, ELG, DSA
Cipher: 3DES (S2), CAST5 (S3), BLOWFISH (S4), AES (S7), AES192 (S8), 
        AES256 (S9), TWOFISH (S10), CAMELLIA128 (S11), CAMELLIA192 (S12), 
        CAMELLIA256 (S13)
Hash: MD5 (H1), SHA1 (H2), RIPEMD160 (H3), SHA256 (H8), SHA384 (H9), 
      SHA512 (H10), SHA224 (H11)
Compression: Uncompressed (Z0), ZIP (Z1), ZLIB (Z2), BZIP2 (Z3)
===============================

These are the flags that I have emerged it with:
$ eix -l gnupg
[I] app-crypt/gnupg
 . . .
     Installed versions:  2.0.17(09:22:32 02/20/11)(bzip2 ldap nls -adns -caps 
-doc -openct -pcsc-lite -selinux -smartcard -static)
-- 
Regards,
Mick