system.h and system header include cleanup

[Dave Korn]

On 27/11/2010 01:49, Joseph S. Myers wrote:

> 	* config/i386/cygming.h: Don't include <stdio.h>.

> 	* config/i386/host-cygwin.c: Don't include <sys/mman.h>.


> Bootstrapped with no regressions on x86_64-unknown-linux-gnu.  Also
> tested building cc1 for crosses to: alpha-linux-gnu arm-eabi frv-elf
> i686-mingw32 iq2000-elf m32c-elf m68hc11-elf mep-elf microblaze-elf
> mips-elf.  

  And I successfully restrapped an existing build tree with it on
i686-pc-cygwin, so those two are OK.

    cheers,
      DaveK