Index: configure.ac
===================================================================
--- configure.ac.orig
+++ configure.ac
@@ -129,7 +129,7 @@ if test ".$ac_cv_sys_largefile_sensitive
 elif test ".$with_largefile" != ".no" ; then
   AC_MSG_RESULT(compiles library as 64bit off_t variant dnl
 - and renaming some function names)
-  LARGEFILE_CFLAGS="$LARGEFILE_CFLAGS -D_LARGEFILE_SOURCE"
+  LARGEFILE_CFLAGS="$LARGEFILE_CFLAGS -D_ZZIP_LARGEFILE -D_LARGEFILE_SOURCE"
   AC_MSG_RESULT(..adding CFLAGS $LARGEFILE_CFLAGS)
   CFLAGS="$CFLAGS $LARGEFILE_CFLAGS"
   AC_MSG_RESULT(..adding 64 into RELEASE_INFO for the libraries)