uclibc-ng

USE flags

• crosscompile_opts_headers-only - Build the toolchain against cross-headers only.
• 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
• hardened - Activate default security enhancements for toolchain (gcc, glibc, binutils)
• headers-only - Install only C headers instead of whole package. Mainly used by sys-devel/crossdev for toolchain bootstrap.
• iconv - Enable support for the iconv character set conversion library
• ipv6 - Add support for IP version 6
• savedconfig - Use this to restore your config from /etc/portage/savedconfig ${CATEGORY}/${PN}. Make sure your USE flags allow for appropriate dependencies
• symlink-compat - Explicitly add sym links for libdl.so.0, libm.so.0, and friends for backward compatibility with sys-libs/uclibc-ng-1.0.17 and earlier