Disable thread safety for 5.8.x on Windows

[perl/modules/Variable-Magic.git] / Magic.xs

diff --git a/Magic.xs b/Magic.xs
index 2883f000dc47dc5cebbbee796668d8a32887dd54..3622e9031d715785621310644fcdc6d6e52d3c3e 100644 (file)
--- a/Magic.xs
+++ b/Magic.xs
@@ -38,13 +38,15 @@
 # define dNOOP
 #endif
 
-#if defined(MULTIPLICITY) || defined(PERL_IMPLICIT_CONTEXT)
-# define VMG_MULTIPLICITY 1
-# ifndef tTHX
-#  define tTHX PerlInterpreter*
+#ifndef VMG_MULTIPLICITY
+# if defined(MULTIPLICITY) || defined(PERL_IMPLICIT_CONTEXT)
+#  define VMG_MULTIPLICITY 1
+# else
+#  define VMG_MULTIPLICITY 0
 # endif
-#else
-# define VMG_MULTIPLICITY 0
+#endif
+#if VMG_MULTIPLICITY && !defined(tTHX)
+# define tTHX PerlInterpreter*
 #endif
 
 #if VMG_MULTIPLICITY && defined(dMY_CXT) && defined(MY_CXT) && defined(START_MY_CXT) && defined(MY_CXT_INIT) && (defined(MY_CXT_CLONE) || defined(dMY_CXT_SV))