From eb508e6e2cd54257708aed9b0cbd4bea358fc467 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Jos=C3=A9=20Fonseca?= <jose.r.fonseca@gmail.com>
Date: Sun, 8 May 2011 07:39:31 +0100
Subject: [PATCH] Fix build with MSVC 2005.

Thanks to horte for pointing this out on geeks3d comment.
---
 CMakeLists.txt | 3 +++
 os_win32.cpp   | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4594580..4648879 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,6 +40,9 @@ endif (NOT WIN32)
 if (WIN32)
     # MSVC & MinGW only define & use APIENTRY
     add_definitions (-DGLAPIENTRY=__stdcall)
+
+    # http://msdn.microsoft.com/en-us/library/aa383745.aspx
+    add_definitions (-D_WIN32_WINNT=0x0500 -DWINVER=0x0500)
 else (WIN32)
     CHECK_CXX_COMPILER_FLAG("-fvisibility=hidden" CXX_COMPILER_FLAG_VISIBILITY)
     if (CXX_COMPILER_FLAG_VISIBILITY)
diff --git a/os_win32.cpp b/os_win32.cpp
index 6cddc55..f220ae5 100644
--- a/os_win32.cpp
+++ b/os_win32.cpp
@@ -99,11 +99,18 @@ DebugMessage(const char *format, ...)
     va_end(ap);
 
     OutputDebugStringA(buf);
+
+    /*
+     * Also write the message to stderr, when a debugger is not present (to
+     * avoid duplicate messages in command line debuggers).
+     */
+#if _WIN32_WINNT > 0x0400
     if (!IsDebuggerPresent()) {
         fflush(stdout);
         fputs(buf, stderr);
         fflush(stderr);
     }
+#endif
 }
 
 long long GetTime(void)
-- 
2.45.2