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-rw-r--r--gcc/hard-reg-set.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/hard-reg-set.h b/gcc/hard-reg-set.h
index 4a305efe350..57ab2860421 100644
--- a/gcc/hard-reg-set.h
+++ b/gcc/hard-reg-set.h
@@ -18,6 +18,8 @@ along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+#ifndef _HARD_REG_SET_H
+#define _HARD_REG_SET_H 1
/* Define the type of a set of hard registers. */
@@ -472,3 +474,5 @@ extern int n_non_fixed_regs;
/* Vector indexed by hardware reg giving its name. */
extern const char * reg_names[FIRST_PSEUDO_REGISTER];
+
+#endif /* _HARD_REG_SET_H */