Hi,

I ran into PR driver/47785 when doing some testing with an option passed 
to the testsuite and I chose to fix this by putting out 
COLLECT_AS_OPTIONS as though these are options for the driver by 
prepending them with a "'-Wa", and suffixing them with a "'" character 
and additionally providing spaces as duly required. I've chosen a simple 
implementation.

Tested in the past with x86_64-linux-gnu and arm-none-eabi cross tests 
(with an additional -Wa option passed to the default flags in a site.exp)

Thoughts ?

Ok for trunk now or should I stage this for 4.9 ?

regards,
Ramana


gcc/

<DATE>  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

     PR driver/47785
         * gcc.c (set_collect_as_options): New.
          (main): Call this.
         * lto-wrapper.c (run_gcc): Handle COLLECT_AS_OPTIONS.


testsuite/

<DATE>  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

         PR driver/47785
         * gcc.dg/pr47785.c: New test.