[PATCH v2] bfd/elf32-or1k: fix building with gcc version < 5

[Alan Modra]

On Wed, Jun 09, 2021 at 11:52:33PM +0200, Giulio Benetti wrote:
> Gcc version >= 5 has standard C mode not set to -std=gnu11, so if we use
> an old compiler(i.e. gcc 4.9) build fails on:
> ```
> elf32-or1k.c:2251:3: error: 'for' loop initial declarations are only allowed in
> C99 or C11 mode
>     for (size_t i = 0; i < insn_count; i++)
>     ^
> ```

Did you find this problem on current mainline binutils?  The configure
machinery is supposed to supply the appropriate -std=c99 or -std=gnu99
when using older compilers.  That happens for me when I build with
gcc-4.9.  I don't think any patch is needed for mainline.

-- 
Alan Modra
Australia Development Lab, IBM