wscript: force /MT for msvc explicitly

wscript

@@ -131,7 +131,7 @@ def configure(conf):
 	compiler_c_cxx_flags = {
 		'common': {
 			# disable thread-safe local static initialization for C++11 code, as it cause crashes on Windows XP
-			'msvc':    ['/D_USING_V110_SDK71_', '/Zi', '/FS', '/Zc:threadSafeInit-'],
+			'msvc':    ['/D_USING_V110_SDK71_', '/Zi', '/FS', '/Zc:threadSafeInit-', '/MT'],
 			'clang':   ['-g', '-gdwarf-2', '-Werror=implicit-function-declaration', '-Werror=return-type'],
 			'gcc':     ['-g', '-Werror=implicit-function-declaration', '-fdiagnostics-color=always', '-Werror=return-type']
 		},