[RFA] Make incompatible Tag_compatibility attributes cause ld to fail

[Nick Clifton]

Hi Matt,

> 2010-03-02  Matthew Gretton-Dann<matthew.gretton-dann@arm.com>
>
> 	* ld-arm/arm-merge-incompatible.d: New test.
> 	* ld-arm/arm-merge-incompatiblea.s: Likewise.
> 	* ld-arm/arm-merge-incompatibleb.s: Likewise.
> 	* ld-arm/arm-elf.exp: Run the new test.
>
> 2010-03-01  Matthew Gretton-Dann<matthew.gretton-dann@arm.com>
>
> 	* elf32-arm.c (elf32_arm_merge_eabi_attributes): Add a check
> 	of the return value from the call to
> 	_bfd_elf_merge_object_attributes.

Approved - please apply.

Cheers
   Nick