This is the mail archive of the cygwin mailing list for the Cygwin project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: Bug? LLVM builds fail on 1.7.8 (fenv.h)


On Mar  9 17:47, Magnus Reftel wrote:
> Hi all,
> 
> it seems that the fenv.h introduction may have caused some problems.
> LLVM fails to build now, and fit seems to me that it could be because
> #define _GLIBCXX_HAVE_FENV_H 1
> is missing in
> /usr/lib/gcc/i686-pc-cygwin/4.3.4/include/c++/i686-pc-cygwin/bits/c++config.h
> 
> For the analysis, please see LLVM bug 9436 at
> http://llvm.org/bugs/show_bug.cgi?id=9436

This isn't a Cygwin bug, but a bug in LLVM.

How on earth can anybody expect that a define _GLIBCXX_HAVE_FENV_H is
set on a system which doesn't even *use* glibc?

The right thing to do for LLVM would be to add a autoconf test to
check for fenv.h and then use HAVE_FENV_H instead of realying on a
system-dependent define in one of the compiler headers.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]