compiler command line. Don't bother to conditionalize code in .c
files that are only compiled when their thread package is used.
(_EMPTH_LWP, EMPTH_LWP, _EMPTH_POSIX, EMPTH_POSIX, _EMPTH_WIN32)
(EMPTH_W32): Identifiers beginning with an underscore and an uppercase
letter are reserved for any use. Rename.
(empth_t, empth_sem_t): Define as incomplete types in empthread.h,
complete in pthread.c, to avoid exposing implementation details.
(EMPTH_KILLED): Move from empthread.h to pthread.c.
which are obsolete since at least 1997.
(empth_terminate, empth_wakeup) [__ppc__]: Ancient versions of OS X
lacked pthread_kill(). As a work-around, its use was disabled here
for all versions of OS X. The work-around could lead to hangs.
Remove it and drop support for ancient versions of OS X.
(empth_create) [__linux__]: Linux has supported thread attribute
stacksize for ages. Remove the special case.
(_MIT_POSIX_THREADS): Unused, remove.
empth_request_shutdown,loc_BlockMainThread,empth_init,
service_ctrl_handler) [_WIN32]: Remove the Windows Build UI and
replace with Ctrl-c signal trap. The shutdown event that was used for
STOPPING the service is now used for both foreground and background
(service) modes of operation. Also move the shutdown event from service
code to empth_t library.
thread entrypoints:
(lwpSelect, shutdown_sequence): Parameters didn't match thread entry
point prototype.
(lwpEntryPoint): Arguments didn't match thread entry point prototype.
Change linkage of functions without prototype declaration to static
where possible.
Remove some superflous declarations, replace others by suitable
includes.
