製作 Cross Toolchain with NPTL support for ARM EABI

感謝Martin Guy提供crosstool-0.42的patch，讓crosstool可以編譯出較新穎的ARM-EABI Toolchain

底下幾篇Martin Guy的文章，提供很多的幫助
http://cluster.aleph1.co.uk/~martin/crosstool.html
http://sources.redhat.com/ml/crossgcc/2006-04/msg00101.html