- 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, 9 insertions, 6 deletions

diff --git a/libc/sysdeps/linux/common/sysctl.c b/libc/sysdeps/linux/common/sysctl.c
index 3cd4f5e41..adee22837 100644
--- a/libc/sysdeps/linux/common/sysctl.c
+++ b/libc/sysdeps/linux/common/sysctl.c
@@ -8,6 +8,8 @@
  */
 
 #include <sys/syscall.h>
+#if defined __NR__sysctl && (defined __USE_GNU || defined __USE_BSD)
+
 /* psm: including sys/sysctl.h would depend on kernel headers */
 extern int sysctl (int *__name, int __nlen, void *__oldval,
 		   size_t *__oldlenp, void *__newval, size_t __newlen) __THROW;
@@ -29,13 +31,14 @@ int sysctl(int *name, int nlen, void *oldval, size_t * oldlenp,
 		   void *newval, size_t newlen)
 {
 	struct __sysctl_args args = {
-	  name:name,
-	  nlen:nlen,
-	  oldval:oldval,
-	  oldlenp:oldlenp,
-	  newval:newval,
-	  newlen:newlen
+	  .name = name,
+	  .nlen = nlen,
+	  .oldval = oldval,
+	  .oldlenp = oldlenp,
+	  .newval = newval,
+	  .newlen = newlen
 	};
 
 	return _sysctl(&args);
 }
+#endif