* Work around a bug in Apple's GCC preprocessor.

src/libmain/shared.cc

@@ -1,10 +1,10 @@
+#include "config.h"
+
 #include "shared.hh"
 #include "globals.hh"
 #include "store-api.hh"
 #include "util.hh"
 
-#include "config.h"
-
 #include <iostream>
 #include <cctype>
 

src/libstore/local-store.cc

@@ -1,3 +1,4 @@
+#include "config.h"
 #include "local-store.hh"
 #include "util.hh"
 #include "globals.hh"
@@ -7,7 +8,6 @@
 #include "aterm.hh"
 #include "derivations-ast.hh"
 #include "worker-protocol.hh"
-#include "config.h"
     
 #include <iostream>
 #include <algorithm>

src/nix-setuid-helper/nix-setuid-helper.cc

@@ -1,3 +1,5 @@
+#include "config.h"
+
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
@@ -10,7 +12,6 @@
 #include <iostream>
 #include <vector>
 
-#include "config.h"
 #include "util.hh"
 
 using namespace nix;