Bug#4429: gcc argument validation could be better

[<bruce@beagle.pixar.com>(Bruce Perens)]

Package: gcc

> echo > foo.c
> gcc -Aa foo.c
*Initialization*:1: missing token-sequence in `#assert'

I guess this is worth forwarding to the upstream maintainer.

GCC could validate the format of the -A flag better. The message
currently generated by a badly-formatted argument is less than
informative.

	Thanks

	Bruce