From be0535a48070ab2a8f11caf2f034e55262a6b448 Mon Sep 17 00:00:00 2001
From: ruki <waruqi@gmail.com>
Date: Wed, 15 Mar 2017 18:23:54 +0800
Subject: add os.run error info

---
 xmake/core/base/os.lua | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/xmake/core/base/os.lua b/xmake/core/base/os.lua
index 9fcae713a..cfbc00611 100644
--- a/xmake/core/base/os.lua
+++ b/xmake/core/base/os.lua
@@ -444,6 +444,13 @@ function os.runv(shellname, argv)
 
         -- make errors
         local errors = io.readall(log)
+        if not errors or #errors == 0 then
+            if argv ~= nil then
+                errors = string.format("runv(%s %s) failed(%d)!", shellname, table.concat(argv, ' '), ok)
+            else
+                errors = string.format("runv(%s) failed(%d)!", shellname, ok)
+            end
+        end
 
         -- remove the temporary log file
         os.rm(log)
-- 
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