Use "#pragma once" to prevent repeated header file inclusion

7 files changed, 7 insertions, 34 deletions

diff --git a/src/libutil/archive.hh b/src/libutil/archive.hh
index fff6203139..ccac92074d 100644
--- a/src/libutil/archive.hh
+++ b/src/libutil/archive.hh
@@ -1,5 +1,4 @@
-#ifndef __ARCHIVE_H
-#define __ARCHIVE_H
+#pragma once
 
 #include "types.hh"
 #include "serialise.hh"
@@ -74,6 +73,3 @@ void restorePath(const Path & path, Source & source);
 
  
 }
-
-
-#endif /* !__ARCHIVE_H */
diff --git a/src/libutil/hash.hh b/src/libutil/hash.hh
index e0b6478cc4..781f517428 100644
--- a/src/libutil/hash.hh
+++ b/src/libutil/hash.hh
@@ -1,5 +1,4 @@
-#ifndef __HASH_H
-#define __HASH_H
+#pragma once
 
 #include "types.hh"
 #include "serialise.hh"
@@ -109,6 +108,3 @@ public:
 
 
 }
-
-
-#endif /* !__HASH_H */
diff --git a/src/libutil/immutable.hh b/src/libutil/immutable.hh
index 5a42a46107..8af4190049 100644
--- a/src/libutil/immutable.hh
+++ b/src/libutil/immutable.hh
@@ -1,5 +1,4 @@
-#ifndef __IMMUTABLE_H
-#define __IMMUTABLE_H
+#pragma once
 
 #include <types.hh>
 
@@ -15,5 +14,3 @@ void makeImmutable(const Path & path);
 void makeMutable(const Path & path);
 
 }
-
-#endif /* !__IMMUTABLE_H */
diff --git a/src/libutil/serialise.hh b/src/libutil/serialise.hh
index ded4b12a04..42dd271176 100644
--- a/src/libutil/serialise.hh
+++ b/src/libutil/serialise.hh
@@ -1,5 +1,4 @@
-#ifndef __SERIALISE_H
-#define __SERIALISE_H
+#pragma once
 
 #include "types.hh"
 
@@ -130,6 +129,3 @@ MakeError(SerialisationError, Error)
 
 
 }
-
-
-#endif /* !__SERIALISE_H */
diff --git a/src/libutil/types.hh b/src/libutil/types.hh
index 844ad6f76a..165a46fa28 100644
--- a/src/libutil/types.hh
+++ b/src/libutil/types.hh
@@ -1,5 +1,4 @@
-#ifndef __TYPES_H
-#define __TYPES_H
+#pragma once
 
 #include <string>
 #include <list>
@@ -74,6 +73,3 @@ typedef enum {
 
 
 }
-
-
-#endif /* !__TYPES_H */
diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index ee0f3862a8..362d0f65e2 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -1,5 +1,4 @@
-#ifndef __UTIL_H
-#define __UTIL_H
+#pragma once
 
 #include "types.hh"
 
@@ -333,6 +332,3 @@ void ignoreException();
 
 
 }
-
-
-#endif /* !__UTIL_H */
diff --git a/src/libutil/xml-writer.hh b/src/libutil/xml-writer.hh
index e5cc5f8c54..fee2eb495e 100644
--- a/src/libutil/xml-writer.hh
+++ b/src/libutil/xml-writer.hh
@@ -1,5 +1,4 @@
-#ifndef __XML_WRITER_H
-#define __XML_WRITER_H
+#pragma once
 
 #include <iostream>
 #include <string>
@@ -70,6 +69,3 @@ public:
 
  
 }
-
-
-#endif /* !__XML_WRITER_H */