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(-)

 # powerpc and powerpc64 common options

 if ARCH_powerpc || ARCH_powerpc64

 config ARCH_POWERPC_SPE

     bool

     prompt "Enable SPE support"

     default n

     help

       Add support for the Signal Processing Engine.  This will set up

       the toolchain so that it supports the SPE ABI extensions. This

       mainly targets Freescale e500 processors.

       Setting this option will append "spe" to the end of your target

       tuple name (e.g., powerpc-e500v2-linux-gnuspe) so that the gcc

       configure/build system will know to include SPE ABI support.

       It will also automatically add "-mabi=spe -mspe" to your

       TARGET_CFLAGS, and "--enable-e500_double" to your CC_EXTRA_CONFIG,

       so you do not need to explicitly add them.

 endif # ARCH_powerpc || ARCH_powerpc64