if var in env:
if var == "LD_LIBRARY_PATH":
env[var] = ":".join([env[var], value])
+ elif var == "CPPFLAGS" or var == "CFLAGS" or var == "LDFLAGS":
+ env[var] = " ".join([env[var], value])
else:
_logger.warning("{} Special var {} is already defined".format(
self.label, var))