原文> If one of the toolchain packages (Glibc, GCC or Binutils) needs 原文> to be upgraded to a newer minor version, it is safer to rebuild LFS. 原文> Though you may be able to get by rebuilding all the packages 原文> in their dependency order, we do not recommend it. 原文> For example, if glibc-2.2.x needs to be updated to glibc-2.3.x, 原文> it is safer to rebuild.