make.conf添加：
FEATURES="ccahe -test"
CCACHE_DIR="/var/tmp/ccache"

重新编译 报下面问题
UnicodeDecodeError: 'gbk' codec can't decode byte 0x93 in position 4280: illegal multibyte sequence

更改/etc/locale.gen

注释:zh_CN.GBK GBK

运行locale-gen命令，生成locale：

重新编译通过

ninja: build stopped: subcommand failed.
* ERROR: net-libs/webkit-gtk-2.38.3::gentoo failed (compile phase):
*   ninja -v -j5 -l0 failed
*
* Call stack:
*     ebuild.sh, line  136:  Called src_compile
*   environment, line 3968:  Called cmake_src_compile
*   environment, line 1782:  Called cmake_build
*   environment, line 1751:  Called eninja
*   environment, line 2206:  Called die
* The specific snippet of code:
*       "$@" || die -n "${*} failed"
*
* If you need support, post the output of `emerge --info '=net-libs/webkit-gtk-2.38.3::gentoo'`,
* the complete build log and the output of `emerge -pqv '=net-libs/webkit-gtk-2.38.3::gentoo'`.
* The complete build log is located at '/var/tmp/portage/net-libs/webkit-gtk-2.38.3/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/net-libs/webkit-gtk-2.38.3/temp/environment'.
* Working directory: '/var/tmp/portage/net-libs/webkit-gtk-2.38.3/work/webkitgtk-2.38.3_build'
* S: '/var/tmp/portage/net-libs/webkit-gtk-2.38.3/work/webkitgtk-2.38.3'