- adds several config-options to allow for turning off certain features

  like
  o UCLIBC_HAS_GNU_ERROR
  o UCLIBC_HAS_BSD_ERR
  o UCLIBC_HAS_PTY
  o UCLIBC_HAS_GETPT (1)
  o UCLIBC_SYSCALL_STUBS
  o UCLIBC_SYSCALL_STUB_WARNING
  o UCLIBC_LINUX_SPECIFIC (2)
  o UCLIBC_BSD_SPECIFIC (3)
  o UCLIBC_NTP_LEGACY (4)
  o UCLIBC_SV4_DEPRECATED (5)
  o UCLIBC_HAVE_REALTIME (6)
  o UCLIBC_HAVE_ADVANCED_REALTIME (7)
  o UCLIBC_HAVE_EPOLL (8)
  o UCLIBC_HAVE_XATTR (9)
  o UCLIBC_HAVE_PROFILING (10)

(1) make non-standard getpt optional and implement standard posix_openpt
(2) fstatfs(), inotify_*(), ioperm(), iopl(), madvise(), modify_ldt(),
    personality()
    ppoll(), setresuid()
(3) mincore(), getdomainname(), setdomainname()
(4) ntp_adjtime(), ntp_gettime() aliases
(5) ustat() [use statfs(2) in your code instead]
(6) All marked as "(REALTIME)" in SUSv3
(7) All marked as "(ADVANCED REALTIME)" in SUSv3
(8) epoll_create(), epoll_ctl(), epoll_wait()
(9) all Extended Attributes
(10) helpers for gcc's -finstrument-functions

- Fixes _dl_exit()
- Implements sleep(3) for !UCLIBC_HAVE_REALTIME
- Implements usleep(3) for !UCLIBC_HAVE_REALTIME
- adds #warning about incorrect posix_fadvise{,64}()
- removes unused and unwanted uselib()

Net outcome is that an allnoconfig with HAVE_SHARED is now about 88k instead 
of formerly 130k.

1 files changed, 63 insertions, 0 deletions

diff --git a/Makefile.in b/Makefile.in
index 1608dc7da..b593a64dc 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -221,6 +221,69 @@ ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
 	# Remove this as it is only used internally.
 	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/tls.h
 endif
+ifneq ($(UCLIBC_HAS_GNU_ERROR),y)
+	# Remove error.h upon request
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/error.h
+endif
+ifneq ($(UCLIBC_HAS_BSD_ERR),y)
+	# Remove err.h upon request
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/err.h
+endif
+ifneq ($(UCLIBC_SUSV3_LEGACY),y)
+	# Remove timeb.h since the LEGACY ftime() was disabled upon request
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/timeb.h
+endif
+ifneq ($(UCLIBC_HAS_EPOLL),y)
+	# Remove epoll.h since epoll_*() were disabled upon request
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/epoll.h
+endif
+ifneq ($(UCLIBC_HAS_XATTR),y)
+	# Remove xattr.h since extended attributes were disabled upon request
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/xattr.h
+endif
+ifneq ($(UCLIBC_SV4_DEPRECATED),y)
+	# Remove ustst.h since ustat was disabled upon request
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/ustat.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/ustat.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/bits/ustat.h
+endif
+ifneq ($(UCLIBC_HAS_PTY),y)
+	# Remove pty.h since PTY support was disabled upon request
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/pty.h
+endif
+ifneq ($(UCLIBC_LINUX_SPECIFIC),y)
+	# Remove linux-specific headers as requested
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/inotify.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/perm.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/personality.h
+endif
+ifneq ($(UCLIBC_SV4_DEPRECATED),y)
+	# Remove ustat.h since deprecated SV4 support was disabled upon request
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/ustat.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/ustat.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/bits/ustat.h
+endif
+ifeq ($(UCLIBC_HAS_REALTIME)$(UCLIBC_HAS_ADVANCED_REALTIME),)
+	# Remove SUSv-realtime related message-queue headers upon request
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/mqueue.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/mqueue.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/bits/mqueue.h
+endif
+ifneq ($(UCLIBC_HAS_REALTIME),y)
+	# Remove SUSv-realtime related headers upon request
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sched.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/sched.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/bits/sched.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/semaphore.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/semaphore.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/bits/semaphore.h
+endif
+ifneq ($(UCLIBC_HAS_SOCKET),y)
+	# Remove socket related headers upon request
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/socket.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/bits/socket.h
+	$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/socketvar.h
+endif
 
 # Installs development library links.
 install_dev: install_headers