9 files changed, 9 insertions, 45 deletions
diff --git a/src/libstore/derivations.hh b/src/libstore/derivations.hh
index 27e471d885cc..8f22b4afa6a1 100644
--- a/src/libstore/derivations.hh
+++ b/src/libstore/derivations.hh
@@ -1,5 +1,4 @@
-#ifndef __DERIVATIONS_H
-#define __DERIVATIONS_H
+#pragma once
 
 #include <map>
 
@@ -81,6 +80,3 @@ typedef std::map<Path, Hash> DrvHashes;
 extern DrvHashes drvHashes;
 
 }
-
-
-#endif /* !__DERIVATIONS_H */
diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh
index 12a9b9ca15c0..1c0877a5e1e9 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -1,5 +1,4 @@
-#ifndef __GLOBALS_H
-#define __GLOBALS_H
+#pragma once
 
 #include "types.hh"
 
@@ -118,6 +117,3 @@ void setDefaultsFromEnvironment();
 
 
 }
-
-
-#endif /* !__GLOBALS_H */
diff --git a/src/libstore/local-store.hh b/src/libstore/local-store.hh
index 65ee029c261e..eb7705219ac7 100644
--- a/src/libstore/local-store.hh
+++ b/src/libstore/local-store.hh
@@ -1,5 +1,4 @@
-#ifndef __LOCAL_STORE_H
-#define __LOCAL_STORE_H
+#pragma once
 
 #include <string>
 
@@ -302,6 +301,3 @@ void deletePathWrapped(const Path & path,
 void deletePathWrapped(const Path & path);
  
 }
-
-
-#endif /* !__LOCAL_STORE_H */
diff --git a/src/libstore/misc.hh b/src/libstore/misc.hh
index 850c12af4ebc..fe0bbdd799d7 100644
--- a/src/libstore/misc.hh
+++ b/src/libstore/misc.hh
@@ -1,5 +1,4 @@
-#ifndef __MISC_H
-#define __MISC_H
+#pragma once
 
 #include "derivations.hh"
 
@@ -35,6 +34,3 @@ void queryMissing(StoreAPI & store, const PathSet & targets,
 
 
 }
-
-
-#endif /* !__MISC_H */
diff --git a/src/libstore/pathlocks.hh b/src/libstore/pathlocks.hh
index 57ca1584a6d6..8a6b1450da2a 100644
--- a/src/libstore/pathlocks.hh
+++ b/src/libstore/pathlocks.hh
@@ -1,5 +1,4 @@
-#ifndef __PATHLOCKS_H
-#define __PATHLOCKS_H
+#pragma once
 
 #include "types.hh"
 
@@ -44,6 +43,3 @@ bool pathIsLockedByMe(const Path & path);
 
 
 }
-
-
-#endif /* !__PATHLOCKS_H */
diff --git a/src/libstore/references.hh b/src/libstore/references.hh
index 158c08a77646..013809d122f3 100644
--- a/src/libstore/references.hh
+++ b/src/libstore/references.hh
@@ -1,5 +1,4 @@
-#ifndef __REFERENCES_H
-#define __REFERENCES_H
+#pragma once
 
 #include "types.hh"
 #include "hash.hh"
@@ -10,5 +9,3 @@ PathSet scanForReferences(const Path & path, const PathSet & refs,
     HashResult & hash);
     
 }
-
-#endif /* !__REFERENCES_H */
diff --git a/src/libstore/remote-store.hh b/src/libstore/remote-store.hh
index f0e5dbf7695a..c57b49ce15e4 100644
--- a/src/libstore/remote-store.hh
+++ b/src/libstore/remote-store.hh
@@ -1,5 +1,4 @@
-#ifndef __REMOTE_STORE_H
-#define __REMOTE_STORE_H
+#pragma once
 
 #include <string>
 
@@ -101,6 +100,3 @@ private:
 
 
 }
-
-
-#endif /* !__REMOTE_STORE_H */
diff --git a/src/libstore/store-api.hh b/src/libstore/store-api.hh
index 0ab15c38063e..9ba67852efec 100644
--- a/src/libstore/store-api.hh
+++ b/src/libstore/store-api.hh
@@ -1,5 +1,4 @@
-#ifndef __STOREAPI_H
-#define __STOREAPI_H
+#pragma once
 
 #include "hash.hh"
 #include "serialise.hh"
@@ -356,6 +355,3 @@ MakeError(BuildError, Error) /* denotes a permanent build failure */
 
 
 }
-
-
-#endif /* !__STOREAPI_H */
diff --git a/src/libstore/worker-protocol.hh b/src/libstore/worker-protocol.hh
index b08410fa1c42..501c0b3db5b9 100644
--- a/src/libstore/worker-protocol.hh
+++ b/src/libstore/worker-protocol.hh
@@ -1,6 +1,4 @@
-#ifndef __WORKER_PROTOCOL_H
-#define __WORKER_PROTOCOL_H
-
+#pragma once
 
 namespace nix {
 
@@ -64,6 +62,3 @@ template<class T> T readStorePaths(Source & from);
 
     
 }
-
-
-#endif /* !__WORKER_PROTOCOL_H */