fix msvc6 warnings

Modified: trunk/reactos/tools/rbuild/backend/msvc/vcprojmaker.cpp

--- trunk/reactos/tools/rbuild/backend/msvc/vcprojmaker.cpp	2006-01-05 16:30:20 UTC (rev 20582)
+++ trunk/reactos/tools/rbuild/backend/msvc/vcprojmaker.cpp	2006-01-05 16:32:49 UTC (rev 20583)
@@ -243,8 +243,8 @@

 	{
 		std::string& cfg = cfgs[icfg];
 

-		bool debug = strstr ( cfg.c_str(), "Debug" );
-		bool speed = strstr ( cfg.c_str(), "Speed" );

+		bool debug = strstr ( cfg.c_str(), "Debug" ) != NULL;
+		bool speed = strstr ( cfg.c_str(), "Speed" ) != NULL;

 		bool release = (!debug && !speed );
 
 		//bool msvc_headers = ( 0 != strstr ( cfg.c_str(), "MSVC Headers" ) );