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-rw-r--r--sysdeps/unix/sysv/linux/x86_64/sysdep.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/sysdep.h b/sysdeps/unix/sysv/linux/x86_64/sysdep.h
index 0edbe6624f..e88c48a9e4 100644
--- a/sysdeps/unix/sysv/linux/x86_64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/x86_64/sysdep.h
@@ -46,6 +46,13 @@
 # define __NR_pwrite __NR_pwrite64
 #endif
 
+/* This is to help the old kernel headers where __NR_semtimedop is not
+   available.  */
+#ifndef __NR_semtimedop
+# define __NR_semtimedop 220
+#endif
+
+
 #ifdef __ASSEMBLER__
 
 /* Linux uses a negative return value to indicate syscall errors,