Re: Broken bootstrap on Cygwin

[Dave Korn <dave dot korn dot cygwin at gmail dot com>]

On 08/02/2011 11:07, Richard Guenther wrote:
> On Mon, Feb 7, 2011 at 11:27 PM, FX <fxcoudert@gmail.com> wrote:
>>> GCC maintainers is this OK for your policy?
>> Personally, I don't think it's a good thing to do: a secondary platform
>> that only supports the latest released version of said platform does not
>> indicate high stability. But it's up to the cygwin maintainers to decide,
>> of course.
>> 
>> However, the fact should be documented on the installation notes
>> (http://gcc.gnu.org/install/specific.html#x-x-cygwin) and probably on the
>> release notes as well, with something like "The GCC 4.6 series requires
>> Cygwin x.y.z or later".
> 
> Indeed.  Maybe also document a workaround (if possible), like "download
> fenv.h from this link and put it there".

  It needs the actual support routines from the Cygwin DLL as well as the
header file.  But yes, I will write a patch for the requirements page.

  Shouldn't libquadmath have an autoconf test for fenv.h?  Or otherwise not be
unconditionally enabled by default?

    cheers,
      DaveK