Gentoo glibc sources: http://dev.gentoo.org/~vapier/dist/ Gentoo glibc CVS interface: http://sources.gentoo.org/viewcvs.py/gentoo-x86/sys-libs/glibc/files/digest-glibc-2.5?rev=1.6&view=log Find the latest releases: http://gentoo-portage.com/sys-libs/glibc Discussion of LD_ASSUME_KERNEL and tls http://people.redhat.com/drepper/assumekernel.html Useful for checking their builds: http://buildd.debian.org/build.cgi?arch=arm&pkg=glibc http://www.linuxfromscratch.org/lfs/view/development/chapter05/glibc.html LFS: http://cross-lfs.org/view/clfs-sysroot/arm/cross-tools/glibc-headers.html