diff -Nuar a/configure.ac b/configure.ac
--- a/configure.ac	2016-01-20 10:47:36.000000000 +0100
+++ b/configure.ac	2016-01-25 20:05:49.310052130 +0100
@@ -10,6 +10,8 @@
 AC_STRUCT_ST_BLKSIZE
 AC_STRUCT_ST_BLOCKS
 
+AC_SYS_LARGEFILE
+
 AC_CHECK_LIB([popt],[poptParseArgvString],,
   AC_MSG_ERROR([libpopt required but not found]))