-std's (was Re: v3 link failures analyzed)

[Gabriel Dos Reis]

Russ Allbery <rra@stanford.edu> writes:

[...]

| -ansi currently does several things in addition to affect the system
| header namespace (it disables // comments, enables trigraphs, changes the

For V3 purposes, we need to provide a flag to tell the preprocessor to
accept //-commment even it should not in the corresponding standard.

-- Gaby
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