Only create the state dir if asked for a restartable build:
- introduce the config dir, where components can store their config files
- move the munged uClibc config file to the config dir
- now, the state dir really is an indication that a build can be restarted

Thanks to Groleo Marius <groleo@gmail.com> for spotting the inconsistency
of the state dir usage, and suggesting this change.

/trunk/scripts/build/libc/uClibc.sh | 6 3 3 0 +++---
/trunk/scripts/crosstool-NG.sh.in | 9 7 2 0 +++++++--
/trunk/scripts/functions | 15 12 3 0 ++++++++++++---
3 files changed, 22 insertions(+), 8 deletions(-)

diff -dur strace-4.5.16.orig/configure.ac strace-4.5.16/configure.ac

--- strace-4.5.16.orig/configure.ac	2007-07-14 19:25:25.000000000 +0200

+++ strace-4.5.16/configure.ac	2007-07-14 19:27:35.000000000 +0200

@@ -91,14 +91,14 @@

 	arch=hppa

 	AC_DEFINE([HPPA], 1, [Define for the HPPA architecture.])

 	;;

-sh)

-	arch=sh

-	AC_DEFINE([SH], 1, [Define for the SH architecture.])

-	;;

 sh64)

 	arch=sh64

 	AC_DEFINE([SH64], 1, [Define for the SH64 architecture.])

 	;;

+sh*)

+	arch=sh

+	AC_DEFINE([SH], 1, [Define for the SH architecture.])

+	;;

 x86?64*)

 	arch=x86_64

 	AC_DEFINE([X86_64], 1, [Define for the AMD x86-64 architecture.])