Move inclusion of errno.h so it follows that of sys/types.h,
-rw-r--r-- 2884 Makefile.in
-rw-r--r-- 439 configure.in
drwxr-xr-x - lib
drwxr-xr-x - m4
-rw-r--r-- 169650 regex.c
-rw-r--r-- 19563 regex.h