Disable hardening due to some run-time failures
    
    This is a temporary hack until we find the real cause. /usr/bin/perl
    linked with -pie causes failures to:
    
    perl-smartmatch-engine-core
    perl-Algorithm-CurveFit
    perl-B-Utils
    perl-PDL-Graphics-PLplot
    
    One could blame poor XS modules, but perl-Algorithm-CurveFit is
    pure perl code with no XS modules. So the bug is somewhere in the
    perl.