Allow user to add a directory component in the sys-root path.
Rename CT_DEBUG_INSTALL_DIR to CT_DEBUGROOT_DIR (to match CT_SYSROOT_DIR).
As a side effect, fix creating lib64->lib symlinks.

/trunk/scripts/build/debug/100-dmalloc.sh | 2 1 1 0 +-
/trunk/scripts/build/debug/400-ltrace.sh | 2 1 1 0 +-
/trunk/scripts/build/debug/300-gdb.sh | 6 3 3 0 +++---
/trunk/scripts/build/debug/500-strace.sh | 2 1 1 0 +-
/trunk/scripts/build/debug/200-duma.sh | 6 3 3 0 +++---
/trunk/scripts/crosstool-NG.sh.in | 16 7 9 0 +++++++---------
/trunk/scripts/functions | 2 1 1 0 +-
/trunk/config/toolchain.in | 17 17 0 0 +++++++++++++++++
8 files changed, 34 insertions(+), 19 deletions(-)

Original patch from: gentoo/src/patchsets/glibc/2.9/6017_all_alpha-glibc-2.8-creat.patch

-= BEGIN original header =-

alpha does not have a __NR_creat

http://bugs.gentoo.org/227275

http://sourceware.org/bugzilla/show_bug.cgi?id=6650

-= END original header =-

diff -durN glibc-2_9.orig/sysdeps/unix/sysv/linux/wordsize-64/creat64.c glibc-2_9/sysdeps/unix/sysv/linux/wordsize-64/creat64.c

--- glibc-2_9.orig/sysdeps/unix/sysv/linux/wordsize-64/creat64.c	2007-11-10 20:34:26.000000000 +0100

+++ glibc-2_9/sysdeps/unix/sysv/linux/wordsize-64/creat64.c	2009-02-02 22:01:35.000000000 +0100

@@ -1 +1,5 @@

 /* Defined as alias for the syscall.  */

+#include <sysdep.h>

+#ifndef __NR_creat

+#include "../../../../../io/creat64.c"

+#endif