For testing: full __float128 patch

[Steve Kargl]

On Sun, Aug 29, 2010 at 09:01:49AM +0200, FX wrote:
> GCC >= 4.5 is needed. I'll add a check to libquad's configure.
> 
> FX
> 

Further testing on i386-*-freebsd runs into undefined symbols.

libquad.so: undefined reference to `__getf2'
libquad.so: undefined reference to `__eqtf2'
libquad.so: undefined reference to `__addtf3'
libquad.so: undefined reference to `__floatsitf'
libquad.so: undefined reference to `__trunctfxf2'
libquad.so: undefined reference to `__divtf3'
libquad.so: undefined reference to `__letf2'
libquad.so: undefined reference to `__unordtf2'
libquad.so: undefined reference to `__fixtfdi'
libquad.so: undefined reference to `__fixtfsi'
libquad.so: undefined reference to `__lttf2'
libquad.so: undefined reference to `__netf2'
libquad.so: undefined reference to `__extendxftf2'
libquad.so: undefined reference to `__extenddftf2'
libquad.so: undefined reference to `__multf3'
libquad.so: undefined reference to `__gttf2'
libquad.so: undefined reference to `__subtf3'
libgfortran.so: undefined reference to `__floatunditf'
libquad.so: undefined reference to `__trunctfdf2'


AFAICT, these should come from libgcc_s.so.1, but for whatever
reason these are missing.  I have been unable to find how
to induce gcc to build the required files. 

-- 
Steve