use Config; use Devel::Peek 'Dump'; use Data::Dumper; print Dumper(!!defined &Config::non_bincompat_options); print Dumper(!!*Config::non_bincompat_options{CODE}); print Dumper(Config::non_bincompat_options()); #### $VAR1 = ''; $VAR1 = 1; $VAR1 = 'PERL_COPY_ON_WRITE'; $VAR2 = 'PERL_DISABLE_PMC'; $VAR3 = 'PERL_DONT_CREATE_GVSV'; $VAR4 = 'PERL_HASH_FUNC_ONE_AT_A_TIME_HARD'; $VAR5 = 'PERL_PRESERVE_IVUV'; $VAR6 = 'USE_LOCALE'; $VAR7 = 'USE_LOCALE_CTYPE'; $VAR8 = 'USE_PERL_ATOF';