bpo-11102: Make configure enable major(), makedev(), and minor() on H…

…P-UX (GH-19856)

Always include <sys/types.h> before <sys/sysmacros.h>.

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Misc/NEWS.d/next/Build/2020-05-01-23-44-31.bpo-11102.Fw9zeS.rst

@@ -0,0 +1,2 @@
+The :func:`os.major`, :func:`os.makedev`, and :func:`os.minor` functions are
+now available on HP-UX v3.

Modules/posixmodule.c

@@ -236,15 +236,16 @@ corresponding Unix manual entries for more information on calls.");
 #  include <sys/uio.h>
 #endif
 
+#ifdef HAVE_SYS_TYPES_H
+/* Should be included before <sys/sysmacros.h> on HP-UX v3 */
+#  include <sys/types.h>
+#endif /* HAVE_SYS_TYPES_H */
+
 #ifdef HAVE_SYS_SYSMACROS_H
 /* GNU C Library: major(), minor(), makedev() */
 #  include <sys/sysmacros.h>
 #endif
 
-#ifdef HAVE_SYS_TYPES_H
-#  include <sys/types.h>
-#endif /* HAVE_SYS_TYPES_H */
-
 #ifdef HAVE_SYS_STAT_H
 #  include <sys/stat.h>
 #endif /* HAVE_SYS_STAT_H */

configure.ac

@@ -5102,6 +5102,7 @@ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 #if defined(MAJOR_IN_MKDEV)
 #include <sys/mkdev.h>
 #elif defined(MAJOR_IN_SYSMACROS)
+#include <sys/types.h>
 #include <sys/sysmacros.h>
 #else
 #include <sys/types.h>