Fixing the glibc-2.10 expression on cross-builds (which should be ported to
the glibc-2.11 expression once we get "ports" there)
Making kde3 and cyrus-sasl use gcc-4.3, because the strictness in gcc-4.4 does
not allow them build.
svn path=/nixpkgs/branches/stdenv-updates/; revision=18706