Expand the responsefiles earlier

* Move the expansion of response files to module Commandline,
  during the initialization of `Commandline.argv`.
  This way we're sure it's done exactly once.
* Make `Commandline.argv` a `string array` instead of a `string array ref`.
  We no longer need to update it after initialization!
* Improve reporting of errors during expansion of response files.

1 files changed, 3 insertions, 3 deletions

diff --git a/driver/Configuration.ml b/driver/Configuration.ml
index 972fd295..68531701 100644
--- a/driver/Configuration.ml
+++ b/driver/Configuration.ml
@@ -13,11 +13,11 @@
 open Printf
 
 let search_argv key =
-  let len = Array.length Sys.argv in
+  let len = Array.length Commandline.argv in
   let res: string option ref = ref None in
   for i = 1 to len - 2 do
-    if Sys.argv.(i) = key then
-      res := Some Sys.argv.(i + 1);
+    if Commandline.argv.(i) = key then
+      res := Some Commandline.argv.(i + 1);
   done;
   !res