dev-libs/xerces-c
Validating XML parser written in a portable subset of C++
USE Flags
cpu_flags_x86_sse2
* This flag is undocumented *
curl
Global: Adds support for client-side URL transfer library
doc
Global: Adds extra documentation (API, Javadoc, etc)
examples
Global: Install examples, usually source code
iconv
Global: Enable support for the iconv character set conversion library
Local: Use iconv (virtual/libiconv) as message loader and transcoder (in general it would be possible to use iconv only as message loader and something else like icu or the native method as transcoder and vice-versa, but this is a less common case and hard to handle)
icu
Global: Enable ICU (Internationalization Components for Unicode) support, using dev-libs/icu
static-libs
Global: Build static libraries
test
Global: Workaround to pull in packages needed to run with FEATURES=test. Portage-2.1.2 handles this internally, so don't set it in make.conf/package.use anymore
threads
Global: Adds threads support for various packages. Usually pthreads
Local: Enable threading support through pthread (or other libraries on AIX, IRIX, HPUX, Solars). Highly recommended