------- Comment #46 from bonzini at gnu dot org  2010-09-02 12:44 -------
Subject: Re:  [4.3/4.4/4.5/4.6 Regression] cannot build
 gcc-4.4.1: fenv_t has not been declared

> Paolo (Bonzini), Ralf, I'm going to add -nostdinc++ to PCHFLAGS in
> include/Makefile.am. Are there any risks of regressions?

I don't think there is risk of regressions, but I'm not very familiar
with where PCH is used.

However, I'm told it is not very much used.  Alternatively we could
time how much time the stdc++ PCH actually saves (if anything?) during
make check, and kill it altogether for 4.6.




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