Do not return failure if MPFR is not supported

It avoids the 'make check' to abort when building on architectures
that has LDBL_MANT_DIG == DBL_MANT_DIG without the mpfr installed
(arm cross-compiling for instance).
1 file changed
tree: c6d37c66e154153cd0c74acbf1751a62b9265214
  1. math/
  2. string/
  3. .gitignore
  4. config.mk.dist
  5. LICENSE
  6. Makefile
  7. README