fix-homereplace-win32.diff

diff -r 2cfb68fa26cd src/Make_ming.mak
--- a/src/Make_ming.mak	Wed Mar 28 20:51:51 2012 +0200
+++ b/src/Make_ming.mak	Wed Apr 18 17:44:32 2012 +0900
@@ -51,7 +51,9 @@
 # set to yes to enable OLE support
 OLE=no
 # Set the default $(WINVER) to make it work with pre-Win2k
+ifndef WINVER
 WINVER = 0x0400
+endif
 # Set to yes to enable Cscope support
 CSCOPE=yes
 # Set to yes to enable Netbeans support
diff -r 2cfb68fa26cd src/misc1.c
--- a/src/misc1.c	Wed Mar 28 20:51:51 2012 +0200
+++ b/src/misc1.c	Wed Apr 18 17:44:32 2012 +0900
@@ -4314,6 +4314,13 @@
 #else
     homedir_env = mch_getenv((char_u *)"HOME");
 #endif
+#if _WIN32_WINNT >= 0x0500
+    {
+	char_u	pathbuf[MAXPATHL];
+	if (GetLongPathName(homedir_env, pathbuf, sizeof(pathbuf)) != 0)
+	    homedir_env = pathbuf;
+    }
+#endif
 
     if (homedir_env != NULL && *homedir_env == NUL)
 	homedir_env = NULL;