filesystem: wscript: disable RTTI and exceptions(useful on Android), we don't need it here. Link as C++ library.

filesystem/wscript

@@ -4,12 +4,17 @@ def options(opt):
 	pass
 
 def configure(conf):
+	nortti = {
+		'msvc': ['/GR-'],
+		'default': ['-fno-rtti', '-fno-exceptions']
+	}
+	conf.env.append_unique('CXXFLAGS', conf.get_flags_by_compiler(nortti, conf.env.COMPILER_CC))
 	if conf.env.cxxshlib_PATTERN.startswith('lib'):
 		conf.env.cxxshlib_PATTERN = conf.env.cxxshlib_PATTERN[3:]
 
 def build(bld):
 	bld.shlib(target = 'filesystem_stdio',
-		features = 'cxx c',
+		features = 'cxx',
 		source = bld.path.ant_glob(['*.c', '*.cpp']),
 		includes = ['.', '../common', '../public', '../engine'],
 		use = ['public'],