Don't detect host compiler on Linux

Modified: branches/xmlbuildsystem/reactos/tools/rbuild/backend/mingw/mingw.cpp

--- branches/xmlbuildsystem/reactos/tools/rbuild/backend/mingw/mingw.cpp	2005-04-23 17:11:51 UTC (rev 14781)
+++ branches/xmlbuildsystem/reactos/tools/rbuild/backend/mingw/mingw.cpp	2005-04-23 17:24:13 UTC (rev 14782)
@@ -590,11 +590,13 @@

 		compilerCommand = ROS_PREFIXValue + "-gcc";
 		detectedCompiler = TryToDetectThisCompiler ( compilerCommand );
 	}

+#if defined(WIN32)

 	if ( !detectedCompiler )
 	{
 		compilerCommand = "gcc";
 		detectedCompiler = TryToDetectThisCompiler ( compilerCommand );
 	}

+#endif

 	if ( !detectedCompiler )
 	{
 		compilerCommand = "mingw32-gcc";