The source project of this merge request has been removed.
fix includes of wait.h and sys/fcntl.h to use standard locations
POSIX standard specifies that wait.h should be in sys/wait.h and fcntl.h at top-level, not under sys. This is true for all unix systems, even glibc. glibc provides wait.h and sys/fcntl.h, but these just includes the same-named headers from the correct locations.