On ARM, fesetenv (FE_NOMASK_ENV) returns success if VFP is present, even if it's a VFP version not supporting trapping exceptions. Testing a patch.
Fixed for 2.17 by: commit ad35f2dd750ed3e3f483409ef50b38ea19745002 Author: Joseph Myers <joseph@codesourcery.com> Date: Wed Nov 21 20:26:56 2012 +0000 Make ARM fesetenv (FE_NOMASK_ENV) detect failure (bug 14866).