Compare to unicode in example builder

tools/test/examples/examples_lib.py

@@ -18,8 +18,9 @@ sys.path.insert(0, ROOT)
 from tools.build_api import get_mbed_official_release
 from tools.targets import TARGET_MAP
 from tools.export import EXPORTERS
+from tools.toolchains import TOOLCHAINS
 
-SUPPORTED_TOOLCHAINS = ["ARM", "IAR", "GCC_ARM", "ARMC6"]
+SUPPORTED_TOOLCHAINS = list(TOOLCHAINS - set(u'uARM'))
 SUPPORTED_IDES = [exp for exp in EXPORTERS.keys() if exp != "cmsis" and exp != "zip"]