Get rid of CT_LIBC_FILE, remove useless CT_MakeAbsolutePath.

CT_LIBC_FILE:
- that one was not easy, as it had sneaked into CT_ExtractAndPatch
- which in turn made CT_ExtractAndPatch have references to C library addons
- which in turn relieved the C library _extract functions from doing their own job
- which in turn imposed some nasty tricks in CT_ExtractAndPatch
- which in turn made life easier for the DUMA _get and _extract functions
- which unveiled some bizare behavior for pushd and popd:
- if using smthg ike: 'pushd foo |bar':
- the directory is *neither* changed
- *nor* is it pushed onto the stack
- which made popd fail

CT_MakeAbsolutePath:
- used only to make CT_LOCAL_TARBALLS_DIR canonical
- which is ((almost) useless:
- hopefully, the user entered a full path already
- if it's not the case, too bad...

/trunk/scripts/build/debug/200-duma.sh | 5 1 4 0 +--
/trunk/scripts/build/libc/glibc.sh | 61 32 29 0 +++++++++++++++++---------------
/trunk/scripts/build/libc/uClibc.sh | 16 10 6 0 +++++---
/trunk/scripts/build/libc/eglibc.sh | 48 26 22 0 ++++++++++++++-----------
/trunk/scripts/crosstool.sh | 8 0 8 0 ----
/trunk/scripts/functions | 77 15 62 0 ++++++++--------------------------------
6 files changed, 84 insertions(+), 131 deletions(-)

 # Compute sh-specific values

 CT_DoArchTupleValues () {

     # The architecture part of the tuple:

     CT_TARGET_ARCH="${CT_ARCH_SH_VARIANT}${target_endian_eb}"

     # gcc ./configure flags

     CT_ARCH_WITH_ARCH=

     CT_ARCH_WITH_ABI=

     CT_ARCH_WITH_CPU=

     CT_ARCH_WITH_TUNE=

     CT_ARCH_WITH_FPU=

     CT_ARCH_WITH_FLOAT=

     # Endianness stuff

     case "${CT_ARCH_BE},${CT_ARCH_LE}" in

         y,) CT_ARCH_ENDIAN_CFLAG=-mb;;

         ,y) CT_ARCH_ENDIAN_CFLAG=-ml;;

     esac

     # CFLAGS

     case "${CT_ARCH_SH_VARIENT}" in

         sh3)    CT_ARCH_ARCH_CFLAG=-m3;;

         sh4*)

             case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in

                 y,) CT_ARCH_ARCH_CFLAG="-m4${CT_ARCH_SH_VARIANT##sh?}";;

                 ,y) CT_ARCH_ARCH_CFLAG="-m4${CT_ARCH_SH_VARIANT##sh?}-nofpu";;

             esac

             ;;

     esac

     CT_ARCH_FLOAT_CFLAG=

 }