From fd8bb4f1d42f6ef6c37bda226492befe267d8a36 Mon Sep 17 00:00:00 2001
From: ruki <waruqi@gmail.com>
Date: Fri, 21 Feb 2020 23:04:50 +0800
Subject: improve os.iorunv errors

---
 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 9faa61d59..52e9bf075 100644
--- a/xmake/core/base/os.lua
+++ b/xmake/core/base/os.lua
@@ -774,6 +774,13 @@ function os.iorunv(program, argv, opt)
 
     -- run command
     local ok, errors = os.execv(program, argv, table.join(opt, {stdout = outfile, stderr = errfile}))
+    if ok == nil then
+        local cmd = program
+        if argv then
+            cmd = cmd .. " " .. os.args(argv)
+        end
+        errors = string.format("cannot runv(%s), error: %s", cmd, errors and errors or "unknown")
+    end
 
     -- get output and error data
     local outdata = io.readfile(outfile)
-- 
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