Updated to match xsubpp-1.929.

1 files changed, 19 insertions, 0 deletions

diff --git a/XSUB.h b/XSUB.h
index 78a922defd..f8d31079fc 100644
--- a/XSUB.h
+++ b/XSUB.h
@@ -35,3 +35,22 @@
 #define XSRETURN_EMPTY do {                XSRETURN(0); } while (0)
 
 #define newXSproto(a,b,c,d)	sv_setpv((SV*)newXS(a,b,c), d)
+
+#ifdef XS_VERSION
+# define XS_VERSION_BOOTCHECK \
+    do {                                                                      \
+        char vn[255], *module = SvPV(ST(0),na);                               \
+        if (items >= 2)         /* version supplied as bootstrap arg */       \
+            Sv=ST(1);                                                         \
+        else {                  /* read version from module::VERSION */       \
+            sprintf(vn,"%s::VERSION", module);                                \
+            Sv = perl_get_sv(vn, FALSE);   /* XXX GV_ADDWARN */               \
+        }                                                                     \
+        if (Sv && (!SvOK(Sv) || strNE(XS_VERSION, SvPV(Sv,na))) )             \
+            croak("%s object version %s does not match %s.pm $VERSION %s",    \
+              module,XS_VERSION, module,(Sv && SvOK(Sv))?SvPV(Sv,na):"(undef)");\
+    } while (0)
+#else
+# define XS_VERSION_BOOTCHECK
+#endif
+