How to pass "-Wa,e500" to gcc when building a bootstrap compiler ?

[Yu Bo-BOYU1]

All,

I am trying to build a cross-compiler tool chain for mpc8540 - powerquicc3.
But I wish to build option '-Wa,e500' into bootstrap gcc so that I do not
worry
it later when rebuilding glibc etc.

Is there any trick to make gcc have a default option like '-Wa,e500' ?

Thanks.

Bo Yu


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