From 40b06694f1f2aa6cdcf71fdd3f3d717154ee1c06 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Mon, 20 Aug 2018 17:58:23 +0300
Subject: Adapt to new process::try_wait() function signature

---
 msvc-common/msvc-filter.cxx | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/msvc-common/msvc-filter.cxx b/msvc-common/msvc-filter.cxx
index ae1a3ff..b45a90b 100644
--- a/msvc-common/msvc-filter.cxx
+++ b/msvc-common/msvc-filter.cxx
@@ -18,6 +18,7 @@
 #include <libbutl/path.mxx>     // path::traits::realize()
 #include <libbutl/utility.mxx>  // alpha(), throw_generic_error()
 #include <libbutl/process.mxx>
+#include <libbutl/optional.mxx>
 #include <libbutl/fdstream.mxx>
 
 #include <msvc-common/version.hxx>
@@ -297,10 +298,10 @@ try
 
     // Timeout occured. Apply wineserver bug workaround if required.
     //
-    bool status;
-    if (r == 0 && pr.try_wait (status))
+    butl::optional<bool> status;
+    if (r == 0 && (status = pr.try_wait ()))
     {
-      if (!status)
+      if (!*status)
         // Handle the child failure outside the loop.
         //
         break;
-- 
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