diff --git a/uppsrc/Core/Core.h b/uppsrc/Core/Core.h
index 8e3356d13..2c1492775 100644
--- a/uppsrc/Core/Core.h
+++ b/uppsrc/Core/Core.h
@@ -3,6 +3,10 @@
 
 #define QLIB3
 
+#ifndef flagMT
+#define flagMT // MT is now always on
+#endif
+
 #if defined(flagMT)
 	#define _MULTITHREADED
 	#define MULTITHREADED
diff --git a/uppsrc/ide/Builders/GccBuilder.cpp b/uppsrc/ide/Builders/GccBuilder.cpp
index 8ade1d301..b04f1b8c1 100644
--- a/uppsrc/ide/Builders/GccBuilder.cpp
+++ b/uppsrc/ide/Builders/GccBuilder.cpp
@@ -110,7 +110,7 @@ bool GccBuilder::BuildPackage(const String& package, Vector<String>& linkfile, V
 	}
 
 	String cc = CmdLine(package, pkg);
-	if(HasFlag("WIN32") && HasFlag("MT"))
+	if(HasFlag("WIN32")/* && HasFlag("MT")*/)
 		cc << " -mthreads";
 	if(HasFlag("DEBUG_MINIMAL"))
 		cc << (HasFlag("WIN32") ? " -g1" : " -ggdb -g1");
@@ -455,7 +455,7 @@ bool GccBuilder::Link(const Vector<String>& linkfile, const String& linkoptions,
 				lnk << " -mwindowsce";
 			else if(HasFlag("WIN32") && !HasFlag("CLANG")) {
 				lnk << " -mwindows";
-				if(HasFlag("MT"))
+				// if(HasFlag("MT"))
 					lnk << " -mthreads";
 				if(!HasFlag("GUI"))
 					lnk << " -mconsole";
diff --git a/uppsrc/ide/Builders/MscBuilder.cpp b/uppsrc/ide/Builders/MscBuilder.cpp
index b96fc454b..ac3b112cb 100644
--- a/uppsrc/ide/Builders/MscBuilder.cpp
+++ b/uppsrc/ide/Builders/MscBuilder.cpp
@@ -272,8 +272,7 @@ bool MscBuilder::BuildPackage(const String& package, Vector<String>& linkfile, V
 	if(HasFlag("DEBUG_FULL"))
 		cc << " -Zi";
 	cc << ' ' << Gather(pkg.option, config.GetKeys());
-	cc << (HasFlag("SHARED") || is_shared || is_clr ? " -MD"
-	      : (HasFlag("MT") || IsMsc89()) ? " -MT" : " -ML");
+	cc << (HasFlag("SHARED") || is_shared || is_clr ? " -MD" : " -MT");
 
 	String cc_size = cc;
 	String cc_speed = cc;