From 2cb91b528aeeb013bd6c61b3d09ebf3601bf1fee Mon Sep 17 00:00:00 2001
From: Jonathan Sternberg <jonathansternberg@gmail.com>
Date: Sun, 27 May 2012 22:09:35 -0400
Subject: Header guards were missing from some header files.

---
 src/depfile_parser.h | 5 +++++
 src/explain.h        | 5 +++++
 src/lexer.h          | 4 ++++
 src/metrics.h        | 5 +++++
 4 files changed, 19 insertions(+)

diff --git a/src/depfile_parser.h b/src/depfile_parser.h
index c900956..1e6ebb5 100644
--- a/src/depfile_parser.h
+++ b/src/depfile_parser.h
@@ -12,6 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#ifndef NINJA_DEPFILE_PARSER_H_
+#define NINJA_DEPFILE_PARSER_H_
+
 #include <string>
 #include <vector>
 using namespace std;
@@ -28,3 +31,5 @@ struct DepfileParser {
   StringPiece out_;
   vector<StringPiece> ins_;
 };
+
+#endif // NINJA_DEPFILE_PARSER_H_
diff --git a/src/explain.h b/src/explain.h
index 021f0d4..d4f6a6c 100644
--- a/src/explain.h
+++ b/src/explain.h
@@ -12,6 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#ifndef NINJA_EXPLAIN_H_
+#define NINJA_EXPLAIN_H_
+
 #include <stdio.h>
 
 #define EXPLAIN(fmt, ...) {                                             \
@@ -20,3 +23,5 @@
 }
 
 extern bool g_explaining;
+
+#endif // NINJA_EXPLAIN_H_
diff --git a/src/lexer.h b/src/lexer.h
index 75c1b2f..19008d7 100644
--- a/src/lexer.h
+++ b/src/lexer.h
@@ -12,6 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#ifndef NINJA_LEXER_H_
+#define NINJA_LEXER_H_
+
 #include "string_piece.h"
 
 // Windows may #define ERROR.
@@ -95,3 +98,4 @@ private:
   const char* last_token_;
 };
 
+#endif // NINJA_LEXER_H_
diff --git a/src/metrics.h b/src/metrics.h
index 74f5f8f..af6e9a2 100644
--- a/src/metrics.h
+++ b/src/metrics.h
@@ -12,6 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#ifndef NINJA_METRICS_H_
+#define NINJA_METRICS_H_
+
 #include <string>
 #include <vector>
 using namespace std;
@@ -62,3 +65,5 @@ private:
   ScopedMetric metrics_h_scoped(metrics_h_metric);
 
 extern Metrics* g_metrics;
+
+#endif // NINJA_METRICS_H_
-- 
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