libstc++-v3 vs. c99 vendor headers

[Gabriel Dos Reis]

Robert Lipe <robertl@sco.com> writes:

| These two don't seem to play nicely together for me. ccos.c does this:
| 
| #include <math.h>
| #include "mathconf.h"

Hi Robert,

Certainly, the mathconf.h stuff is causing more trouble than it
should.  I have settled to look at it closely this night (sorry I
can't do any commit right now).

Thanks for your patience and your help,

-- Gaby
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