diff --git a/xorriso/xorriso_main.c b/xorriso/xorriso_main.c
index 10a0fe9f..a3e90bfa 100644
--- a/xorriso/xorriso_main.c
+++ b/xorriso/xorriso_main.c
@@ -132,6 +132,12 @@ int main(int argc, char **argv)
  struct XorrisO *xorriso= NULL;
  char **orig_argv= NULL;
 
+ if(sizeof(off_t) < 8) {
+   yell_xorriso();
+   fprintf(stderr,
+    "xorriso : FATAL : Compile time misconfiguration. sizeof(off_t) too small.\n\n");
+   exit(4);
+ }
  if(strcmp(Xorriso_main_program_versioN, Xorriso_program_versioN)) {
    yell_xorriso();
    fprintf(stderr,
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 6aad2745..a9dcfd13 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2010.05.16.113100"
+#define Xorriso_timestamP "2010.05.16.171056"