From e4e9562c9250423c45a52009659b632eab905f8c Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Fri, 30 Mar 2012 01:43:38 +0900
Subject: [PATCH] Get the home directory of the effective user ID using
 getpwuid() if $HOME is not defined.

---
 src/util.cc | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/util.cc b/src/util.cc
index 9f6ad391..466f6751 100644
--- a/src/util.cc
+++ b/src/util.cc
@@ -35,6 +35,8 @@
 #include "util.h"
 
 #include <signal.h>
+#include <sys/types.h>
+#include <pwd.h>
 
 #include <cerrno>
 #include <cassert>
@@ -1008,7 +1010,12 @@ std::string getHomeDir()
         }
       }
     }
-#endif
+#else // !__MINGW32__
+    passwd* pw = getpwuid(geteuid());
+    if(pw && pw->pw_dir) {
+      return pw->pw_dir;
+    }
+#endif // !__MINGW32__
     return A2STR::NIL;
   }
 }