From 1ae87178ba3e14d23e0a0617f6b73e7e9a8b63ab Mon Sep 17 00:00:00 2001
From: David Nadlinger <code@klickverbot.at>
Date: Fri, 22 Apr 2011 18:41:16 +0200
Subject: [PATCH] Merged DMD commit fb9df45c499e7e314642fc2de2ae6fd0ba1cfbbd:
 -m

This commit actually adds some more import hints.
---
 dmd/mtype.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/dmd/mtype.c b/dmd/mtype.c
index 2e289bef..cf5f48bf 100644
--- a/dmd/mtype.c
+++ b/dmd/mtype.c
@@ -3651,9 +3651,22 @@ L1:
         else
             *pt = t->merge();
     }
+
     if (!s)
     {
-        error(loc, "identifier '%s' is not defined", toChars());
+        const char *p = toChars();
+        const char *n = importHint(p);
+        if (n)
+            error(loc, "'%s' is not defined, perhaps you need to import %s; ?", p, n);
+        else
+        {
+            Identifier *id = new Identifier(p, TOKidentifier);
+            s = sc->search_correct(id);
+            if (s)
+                error(loc, "undefined identifier %s, did you mean %s %s?", p, s->kind(), s->toChars());
+            else
+                error(loc, "undefined identifier %s", p);
+        }
     }
 }