[PATCH] add a configure option for using RELRO by default

[Nicholas Clifton]

Hi Daniel,

> 2015-01-14  Daniel Micay  <danielmicay@gmail.com>
>
> 	* ld/configure.ac: Add --enable-default-relro switch.
> 	* ld/emultempl/elf32.em: Handle ENABLE_DEFAULT_RELRO.
> 	* ld/testsuite/config/default.exp: Disable RELRO.
> 	* ld/testsuite/ld-bootstrap/bootstrap.exp: Disable RELRO.
> 	* ld/config.in: Regenerate.
> 	* ld/configure: Regenerate.

Approved - please apply.

Cheers
   Nick