diff -aruN zstd-1.4.5.orig/programs/util.c zstd-1.4.5/programs/util.c
--- zstd-1.4.5.orig/programs/util.c	2020-05-22 14:04:00.000000000 +0900
+++ zstd-1.4.5/programs/util.c	2020-08-23 22:29:44.010060588 +0900
@@ -149,7 +149,7 @@
      * that struct stat has a struct timespec st_mtim member. We need this
      * check because there are some platforms that claim to be POSIX 2008
      * compliant but which do not have st_mtim... */
-#if (PLATFORM_POSIX_VERSION >= 200809L) && defined(st_mtime)
+#if (PLATFORM_POSIX_VERSION >= 200809L) && (defined(st_mtime) || (defined(__linux__) && defined(__alpha)))
     {
         /* (atime, mtime) */
         struct timespec timebuf[2] = { {0, UTIME_NOW} };