error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’
 #    define XS_EXTERNAL(name) void name(pTHX_ CV* cv __attribute__unused__)
                               ^

##</code><code>##

perl_pl_b1a3.c:163:1: note: in expansion of macro ‘XS_EXTERNAL’
 XS_EXTERNAL(boot_perl_pl_b1a3); /* prototype to pass -Wmissing-prototypes */
 ^

##</code><code>##

  'TYPEMAPS' => [
    '/home/pi/perl5/perlbrew/perls/perl-5.24.0/lib/5.24.0/ExtUtils/typemap'
  ],