Cygwin Perl and -Duselongdouble

Corinna Vinschen corinna-cygwin@cygwin.com
Thu Jul 26 12:19:00 GMT 2007


On Jul 26 22:09, Sisyphus wrote:
> Hi,
> I'd like to have a perl on Cygwin built with -Duselongdouble, so I tried 
> building blead (5.9.5) from source with:
> 
> ./configure -de -Dusemorebits -Dprefix=~/Rob -Dusethreads -Uusemymalloc 
> -Doptimize=-O3 -Dusedevel
> 
> but that failed, culminating as follows:
> 
> ----------------------------
> .
> .
> sqrtl() NOT found.
> 
> scalbnl() NOT found.
> 
> modfl() NOT found.
> 
> modfl() prototype NOT found.
> 
> *** You requested the use of long doubles but you do not seem to have
> *** the following mathematical functions needed for long double support:
> ***     sqrtl modfl frexpl
> *** Please rerun Configure without -Duselongdouble and/or -Dusemorebits.
> *** Cannot continue, aborting.
> ----------------------------

Long double functions are not supported by newlib so far.  There are a
couple of C99 functions not available in newlib.  Volunteers implementing
these functions in a license compatible way (BSD, not GPL) in newlib
are always welcome.


Corinna

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

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