Hi,

These warnings are invisible when building but they may help to detect
if an option is duplicated somewhere else with different purpose , so
it would be better to make this an error,

Only 2 options in Ada trigger this warning, and their help text has no
effect, since it gest overridden by the ones in c.opt. Fixing this
properly would require language-specific namespace, so two options
with the same name in different languages can have completely
different help text (and Init() and other flags). Not something I am
planning to work on in the future.

OK?

2012-05-13  Manuel López-Ibáñez  <manu@gcc.gnu.org>

gcc/
	* optc-gen.awk: Error instead of warning for conflicting help.
ada/
	* gcc-interface/lang.opt (I): Comment out help text with no effect.
	(nostdinc): Comment out help text with no effect.