From 195de65a84864cf5931325eeb2356f7d98155055 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 21 Jun 2021 11:59:04 +0200
Subject: Add support for automatic generation of symbol exporting .def file

---
 libbuild2/cc/msvc.cxx | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

(limited to 'libbuild2/cc/msvc.cxx')

diff --git a/libbuild2/cc/msvc.cxx b/libbuild2/cc/msvc.cxx
index cceb1fe..9e8ae18 100644
--- a/libbuild2/cc/msvc.cxx
+++ b/libbuild2/cc/msvc.cxx
@@ -426,6 +426,7 @@ namespace build2
       bool obj (false), dll (false);
       string s;
 
+      bool io (false);
       try
       {
         ifdstream is (
@@ -465,14 +466,18 @@ namespace build2
             }
           }
         }
+
+        is.close ();
       }
       catch (const io_error&)
       {
-        // Presumably the child process failed. Let run_finish() deal with
-        // that.
+        // Presumably the child process failed so let run_finish() deal with
+        // that first.
+        //
+        io = true;
       }
 
-      if (!run_finish_code (args, pr, s))
+      if (!run_finish_code (args, pr, s) || io)
       {
         diag_record dr;
         dr << warn << "unable to detect " << l << " library type, ignoring" <<
-- 
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