Fixed double declaraction error on systems having both HAVE_SYS_STATVFS_H and HAVE_SYS_VFS_H.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1230 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/storage_file.c

@@ -126,12 +126,7 @@ smf_calcsize(struct smf_sc *sc, const char *size, int newfile)
 	AN(sc != NULL);
 	AZ(fstat(sc->fd, &st));
 
-#ifdef HAVE_SYS_STATVFS_H
-	struct statfs fsst;
-	AZ(fstatfs(sc->fd, &fsst));
-#endif
-
-#ifdef HAVE_SYS_VFS_H
+#if defined(HAVE_SYS_STATVFS_H) || defined(HAVE_SYS_VFS_H)
 	struct statfs fsst;
 	AZ(fstatfs(sc->fd, &fsst));
 #endif