c-ext: include sys/types.h before sys/sysctl.h

Closes #128.

Author: indygreg

c-ext/backend_c.c

@@ -13,8 +13,10 @@
 #include <Windows.h>
 #elif defined(__APPLE__) || defined(__OpenBSD__) || defined(__FreeBSD__) ||    \
     defined(__NetBSD__) || defined(__DragonFly__)
-#include <sys/sysctl.h>
 #include <sys/types.h>
+
+#include <sys/sysctl.h>
+
 #endif
 
 #include "python-zstandard.h"

docs/news.rst

@@ -80,6 +80,10 @@ Bug Fixes
 ---------
 
 * ``setup.py`` no longer attempts to build the C backend on PyPy. (#130)
+* ``<sys/types.h>`` is now included before ``<sys/sysctl.h>``. This was
+  the case in releases prior to 0.15.0 and the include order was reversed
+  as part of running ``clang-format``. The old/working order has been
+  restored. (#128)
 
 0.15.0 (released 2020-12-29)
 ============================