diff --git a/setup.py b/setup.py
index d809be74c..a2631a25a 100644
--- a/setup.py
+++ b/setup.py
@@ -273,8 +273,6 @@ class Config(object):
                         quote_path("-I" + os.path.join(bits, "curl", "include"))]
             else:
                 return []
-        elif platform.system() == "Darwin":
-            return []
         else:
             return ["-Wno-strict-aliasing",  # Avoids many "type-punned pointer" warnings
                     "-std=c++11",  # because we use unordered_map/unordered_set
@@ -534,6 +532,7 @@ tl = Extension(config.root + '.tlcore',
                include_dirs=[_tl_path, _gsi_path, _pya_path],
                extra_objects=[config.path_of('_tl', _tl_path), config.path_of('_gsi', _gsi_path), config.path_of('_pya', _pya_path)],
                extra_link_args=config.link_args('tlcore'),
+               extra_compile_args=config.compile_args('tlcore'),
                sources=list(tl_sources))
 
 # ------------------------------------------------------------------
@@ -547,6 +546,7 @@ db = Extension(config.root + '.dbcore',
                include_dirs=[_db_path, _tl_path, _gsi_path, _pya_path],
                extra_objects=[config.path_of('_db', _db_path), config.path_of('_tl', _tl_path), config.path_of('_gsi', _gsi_path), config.path_of('_pya', _pya_path)],
                extra_link_args=config.link_args('dbcore'),
+               extra_compile_args=config.compile_args('dbcore'),
                sources=list(db_sources))
 
 # ------------------------------------------------------------------
@@ -560,6 +560,7 @@ lib = Extension(config.root + '.libcore',
                include_dirs=[_lib_path, _tl_path, _gsi_path, _pya_path],
                extra_objects=[config.path_of('_lib', _lib_path), config.path_of('_tl', _tl_path), config.path_of('_gsi', _gsi_path), config.path_of('_pya', _pya_path)],
                extra_link_args=config.link_args('libcore'),
+               extra_compile_args=config.compile_args('libcore'),
                sources=list(lib_sources))
 
 # ------------------------------------------------------------------
@@ -573,6 +574,7 @@ rdb = Extension(config.root + '.rdbcore',
                 include_dirs=[_rdb_path, _tl_path, _gsi_path, _pya_path],
                 extra_objects=[config.path_of('_rdb', _rdb_path), config.path_of('_tl', _tl_path), config.path_of('_gsi', _gsi_path), config.path_of('_pya', _pya_path)],
                 extra_link_args=config.link_args('rdbcore'),
+                extra_compile_args=config.compile_args('rdbcore'),
                 sources=list(rdb_sources))
 
 # ------------------------------------------------------------------