diff --git a/ChangeLog b/ChangeLog
index 3223ff58ea..59fc5f950d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -92,6 +92,8 @@
 	_hurd_userlink_link, _hurd_userlink_unlink, _hurd_userlink_clear.
 	* sysdeps/mach/hurd/bits/posix_opt.h (_POSIX_CHOWN_RESTRICTED,
 	_POSIX_NO_TRUNC): Define to 0.
+	* sysdeps/pthread/allocalim.h [!defined PTHREAD_STACK_MIN]: Do not
+	check size against PTHREAD_STACK_MIN.
 
 2008-12-18  Thomas Schwinge  <tschwinge@gnu.org>
 
diff --git a/sysdeps/pthread/allocalim.h b/sysdeps/pthread/allocalim.h
index b265d6f269..fdae0c251f 100644
--- a/sysdeps/pthread/allocalim.h
+++ b/sysdeps/pthread/allocalim.h
@@ -24,6 +24,9 @@ extern __always_inline
 int
 __libc_use_alloca (size_t size)
 {
-  return (__builtin_expect (size <= PTHREAD_STACK_MIN / 4, 1)
-	  || __builtin_expect (__libc_alloca_cutoff (size), 1));
+  return (
+#ifdef PTHREAD_STACK_MIN
+          __builtin_expect (size <= PTHREAD_STACK_MIN / 4, 1) ||
+#endif
+          __builtin_expect (__libc_alloca_cutoff (size), 1));
 }