Configure, Mpfr version

[Philippe Schaffnit]

Hi!

I am running into configuration issues under CygWin (I don't know
whether this has anything to do with the platoform, though): it
complains that my Mpfr is too old, whereas it's not! Could it be that is
it only checking that it's 2.2.? (sorry, the configure script is beyond
me...)

Can anyone comment on that?

Thanks!

Philippe

PS: some more details

/cygdrive/z/configure --prefix=/Tools/Gcc --enable-languages=c,fortran
--disable-maintainer-mode --with-mpfr=/Tools/Mpfr --with-gmp==/Tools/Gmp
--with-htmldir
...
checking for correct version of gmp.h... yes
checking for correct version of mpfr.h... no
configure: error: Building GCC requires GMP 4.1+ and MPFR 2.2.1+.

egrep MPFR_VERSION_STRING /Tools/Mpfr/include/mpfr.h 
#define MPFR_VERSION_STRING "2.3.0"