* Include config.h before the C library headers, because it defines

  _FILE_OFFSET_BITS=64.  Without it, functions like stat() fail on
  large file sizes.  This happened with a Nix store on squashfs:

  $ nix-store --dump /tmp/mnt/46wzqnk4cbdwh1dclhrpqnnz1icak6n7-local-net-cmds > /dev/null
  error: getting attributes of path `/tmp/mnt/46wzqnk4cbdwh1dclhrpqnnz1icak6n7-local-net-cmds': Value too large for defined data type

  $ stat /tmp/mnt/46wzqnk4cbdwh1dclhrpqnnz1icak6n7-local-net-cmds
  File: `/tmp/mnt/46wzqnk4cbdwh1dclhrpqnnz1icak6n7-local-net-cmds'
  Size: 0               Blocks: 36028797018963968 IO Block: 1024   regular empty file

  (This is a bug in squashfs or mksquashfs, but it shouldn't cause Nix
  to fail.)

1 files changed, 2 insertions, 0 deletions

diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index d7d3e5edf817..a5d0445c14d4 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -1,6 +1,8 @@
 #ifndef __UTIL_H
 #define __UTIL_H
 
+#include "config.h"
+
 #include "types.hh"
 
 #include <sys/types.h>