> Can we just add “%(cc1_options)”, or is there a reason why it is missing?

It is not missing, reusing cc1_options is simply problematic because different 
FEs can have different needs.  In particular, in Ada we need to echo the order 
of -g* and -m* switches (the "%{g*&m*}" thing) and cc1_options doesn't do it.

That being said, there are enough common bits as to deserve a factorization.

-- 
Eric Botcazou

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