perl_mutex n/a if !USE_THREADS

p4raw-id: //depot/perl@4409

diff --git a/perlvars.h b/perlvars.h
index ecb450e..85ff751 100644 (file)
--- a/perlvars.h
+++ b/perlvars.h
@@ -31,6 +31,6 @@ PERLVARIC(Gpatleave,  char *, "\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}")
 /* XXX does anyone even use this? */
 PERLVARI(Gdo_undump,   bool,   FALSE)  /* -u or dump seen? */
 
-#ifdef MYMALLOC
+#if defined(MYMALLOC) && defined(USE_THREADS)
 PERLVAR(Gmalloc_mutex, perl_mutex)     /* Mutex for malloc */
 #endif