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-rw-r--r--linuxthreads/tststack.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/linuxthreads/tststack.c b/linuxthreads/tststack.c
index 077226a22f..6789ff861a 100644
--- a/linuxthreads/tststack.c
+++ b/linuxthreads/tststack.c
@@ -1,4 +1,4 @@
-/* Tests for variable stacksize handling.
+/* Tests for variable stack size handling.
    Copyright (C) 2000 Free Software Foundation, Inc.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2000.
 
@@ -19,6 +19,7 @@
 
 #include <pthread.h>
 #include <stdio.h>
+#include <unistd.h>
 
 static void *f1 (void *);
 static void *f2 (void *);