From 9c94b7c1e748743309dae75ec95e374f26624d5f Mon Sep 17 00:00:00 2001
From: Alexander Gavrilov <angavrilov@gmail.com>
Date: Sat, 28 Apr 2012 11:53:26 +0400
Subject: [PATCH] Make the hash map implementation error more useful.

It instructs to update GCC, but actually the most common
reason for the error is missing 32-bit development libs.
---
 depends/protobuf/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/depends/protobuf/CMakeLists.txt b/depends/protobuf/CMakeLists.txt
index 92504f059..dddefb06b 100644
--- a/depends/protobuf/CMakeLists.txt
+++ b/depends/protobuf/CMakeLists.txt
@@ -57,7 +57,7 @@ IF(CMAKE_COMPILER_IS_GNUCC)
     ENDIF()
 
     IF (HAVE_HASH_MAP EQUAL 0)
-        MESSAGE(SEND_ERROR "Could not find a working hash map implementation. Please update GCC.")
+        MESSAGE(SEND_ERROR "Could not find a working hash map implementation. Please install GCC >= 4.4, and all necessary 32-bit C++ development libraries.")
     ENDIF()
 
     FIND_PACKAGE(Threads)