diff --git a/libavcodec/libxvidff.c b/libavcodec/libxvidff.c
index 414471e4f7..f3a1a5bb9f 100644
--- a/libavcodec/libxvidff.c
+++ b/libavcodec/libxvidff.c
@@ -38,9 +38,7 @@
 #define BUFFER_CAT(x)               (&((x)[strlen(x)]))
 
 /* For PPC Use */
-#ifdef HAVE_ALTIVEC
 extern int has_altivec(void);
-#endif
 
 /**
  * Structure for the private XviD context.