diff --git a/src/nfreplay/nfreplay.c b/src/nfreplay/nfreplay.c
index f8bacbc0..443aab9b 100644
--- a/src/nfreplay/nfreplay.c
+++ b/src/nfreplay/nfreplay.c
@@ -74,9 +74,11 @@
 #ifdef HAVE___FPURGE
 #define FPURGE __fpurge
 #endif
+#ifndef FPURGE
 #ifdef HAVE_FPURGE
 #define FPURGE fpurge
 #endif
+#endif
 
 /* Local Variables */
 static int verbose = 0;