--- setup.py.old	2018-10-31 19:13:17.000000000 -0700
+++ setup.py	2018-10-31 19:15:01.000000000 -0700
@@ -189,7 +189,7 @@
     cppflags = shlex.split(cppflags)
     cflags = os.environ.get(
         'OVERRIDE_CFLAGS', (
-            '-Wextra -Wno-missing-field-initializers -Wall -std=c99'
+            '-Wextra -Wno-missing-field-initializers -Wno-deprecated-declarations -Wall -std=c99'
             ' -pedantic-errors -Werror {} {} -fwrapv {} {} -pipe {} -fvisibility=hidden'
         ).format(
             optimize,