1 files changed, 3 insertions, 2 deletions
diff --git a/regcomp.c b/regcomp.c
index adda2aa8f9..9039797ad4 100644
--- a/regcomp.c
+++ b/regcomp.c
@@ -60,9 +60,9 @@
 #define REG_COMP_C
 #include "regcomp.h"
 
-#ifdef USE_THREADS
+#ifdef op
 #undef op
-#endif /* USE_THREADS */
+#endif /* op */
 
 static regnode regdummy;
 static char *  regparse;       /* Input-scan pointer. */
@@ -2663,3 +2663,4 @@ re_croak2(const char* pat1,const char* pat2, va_alist)
 }
 
 
+