| Flag |
Description |
2.3.0 |
2.2.16 |
2.2.14-r1 |
| autocrypt |
Enable autocrypt.org support
|
✓ |
✓ |
✓ |
| berkdb |
Enable <pkg>sys-libs/db</pkg> database backend
for header caching
|
✓ |
✓ |
✓ |
| debug |
Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces
|
✓ |
✓ |
✓ |
| doc |
Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
|
✓ |
✓ |
✓ |
| gdbm |
Enable <pkg>sys-libs/gdbm</pkg> database backend
for header caching
|
✓ |
✓ |
✓ |
| gnutls |
Prefer net-libs/gnutls as SSL/TLS provider (ineffective with USE=-ssl)
|
✓ |
✓ |
✓ |
| gpgme |
Build gpgme backend to support S/MIME, PGP/MIME and
traditional/inline PGP
|
✓ |
✓ |
✓ |
| gsasl |
Use GNU SASL via <pkg>net-misc/gsasl</pkg> instead
of Cyrus SASL (requires USE=sasl)
|
✓ |
✓ |
✓ |
| hcache |
Enable header cache, one database backend needs
to be enabled
|
⊕ |
⊕ |
⊕ |
| idn |
Enable support for Internationalized Domain Names
|
✓ |
✓ |
✓ |
| imap |
Add support for IMAP (Internet Mail Application Protocol)
|
⊕ |
⊕ |
⊕ |
| kerberos |
Add kerberos support
|
✓ |
✓ |
✓ |
| lmdb |
Enable <pkg>dev-db/lmdb</pkg> database backend for
header caching
|
⊕ |
⊕ |
⊕ |
| mbox |
Add support for mbox (/var/spool/mail) style mail spools
|
✓ |
✓ |
✓ |
| nls |
Add Native Language Support (using gettext - GNU locale utilities)
|
✓ |
✓ |
✓ |
| pgp-classic |
Build classic_pgp backend to support PGP/MIME
and traditional/inline PGP
|
✗ |
✗ |
✓ |
| pop |
Enable support for POP3 mailboxes
|
✓ |
✓ |
✓ |
| prefix |
Defines if a Gentoo Prefix offset installation is used
|
✓ |
✓ |
✓ |
| qdbm |
Add support for the qdbm (Quick Database Manager) library
|
✓ |
✓ |
✓ |
| sasl |
Add support for the Simple Authentication and Security Layer
|
⊕ |
⊕ |
⊕ |
| selinux |
!!internal use only!! Security Enhanced Linux support, this must be set by the selinux profile or breakage will occur
|
✓ |
✓ |
✓ |
| slang |
Add support for the slang text display library (it's like ncurses, but different)
|
✓ |
✓ |
✓ |
| smime-classic |
Build classic_smime backend to support
S/MIME
|
✗ |
✗ |
✓ |
| smtp |
Enable support for direct SMTP delivery
|
⊕ |
⊕ |
⊕ |
| ssl |
Add support for SSL/TLS connections (Secure Socket Layer / Transport Layer Security)
|
⊕ |
⊕ |
⊕ |
| tokyocabinet |
Enable <pkg>dev-db/tokyocabinet</pkg>
database backend for header caching
|
✓ |
✓ |
✓ |
| vanilla |
Do not add extra patches which change default behaviour; DO NOT USE THIS ON A GLOBAL SCALE as the severity of the meaning changes drastically
|
✓ |
✓ |
✓ |