#include "XSUB.h"
-void XS_UNIVERSAL_isa(pTHX_ CV *cv);
-void XS_UNIVERSAL_can(pTHX_ CV *cv);
-void XS_UNIVERSAL_VERSION(pTHX_ CV *cv);
+PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv);
+PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv);
+PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv);
XS(XS_version_new);
XS(XS_version_stringify);
XS(XS_version_numify);