On 2019-11-9 10:28 , Jack Howarth wrote: > I just noticed a really bizarre aspect to this Xcode 11 bug. If you > build gmp manually from source with the default compiler flags in use... > > ./configure > make > make check > > the t-powm test case fails. However if you add -fstack-check > explicitly on CFLAGS and CXXFLAGS, the t-powm test case failure is > suppressed. > > ./configure CFLAGS='-O2 -fcheck-stack' CXXFLAGS='-O2 -fcheck-stack' > make > make check
Are the default compiler flags '-O2'? - Josh
