Merge r1432:1437 from /branches/newlib into /trunk :
- under bare-metal, the user is responsible for providing a gdbserver stub (r1433)
- install a CT_TARGET-cc -> CT_TARGET-gcc symlink for the core gcc (r1434)
- allow broader dependency in generated config files (r1435, r1436)
- prepare C library menuconfig for using a C library under bare-metal (r1437)

/trunk/scripts/build/cc/gcc.sh | 4 4 0 0 ++++
/trunk/config/debug/gdb.in | 5 5 0 0 +++++
/trunk/config/libc/glibc.in | 1 1 0 0 +
/trunk/config/libc/uClibc.in | 1 1 0 0 +
/trunk/config/libc/eglibc.in | 2 1 1 0 +-
/trunk/config/config.mk | 20 8 12 0 ++++++++------------
/trunk/config/arch/sh.in | 2 1 1 0 +-
/trunk/config/arch/ia64.in | 2 1 1 0 +-
/trunk/config/arch/powerpc64.in | 2 1 1 0 +-
/trunk/config/libc.in | 4 0 4 0 ----
10 files changed, 23 insertions(+), 20 deletions(-)

 # Compute powerpc-specific values

 CT_DoArchTupleValues () {

     # The architecture part of the tuple:

     CT_TARGET_ARCH="${CT_ARCH}"

     # The kernel ARCH:

     CT_KERNEL_ARCH=powerpc

     # Add spe in the tuplet if needed

     case "${CT_LIBC},${CT_ARCH_POWERPC_SPE}" in

         glibc,|eglibc,)   CT_TARGET_SYS=gnu;;

         glibc,y|eglibc,y) CT_TARGET_SYS=gnuspe;;

     esac

     # Add extra flags for SPE if needed

     if [ "${CT_ARCH_POWERPC_SPE}" = "y" ]; then

         CT_ARCH_TARGET_CFLAGS="-mabi=spe -mspe"

         CT_ARCH_CC_CORE_EXTRA_CONFIG="--enable-e500_double"

         CT_ARCH_CC_EXTRA_CONFIG="--enable-e500_double"

     fi

 }