configure.ac (arm*-*-linux-gnueabi): Don't disable building of libobjc for ARM EABI...

configure.ac (arm*-*-linux-gnueabi): Don't disable building of libobjc for ARM EABI Linux.

    * configure.ac (arm*-*-linux-gnueabi): Don't disable building
    of libobjc for ARM EABI Linux.
    * configure: Regenerate.

    libobjc/
    * exception.c (__objc_exception_class): Initialise as constant
    array for ARM EABI. Change macro to static const for non-ARM EABI.
    (ObjcException): Add note about structure layout. Remove landingPad
    and handlerSwitchValue for ARM EABI.
    (get_ttype_entry): Add __ARM_EABI_UNWINDER__ version
    of function.
    (CONTINUE_UNWINDING): Define for ARM EABI/otherwise cases.
    (PERSONALITY_FUNCTION): Use ARM EABI-specific arguments, and add
    ARM EABI unwinding support.
    (objc_exception_throw): Use memcpy to initialise exception class.

From-SVN: r136215