Remove a few unnecessary headers and unused functions. (#667)

* EXIT_SUCCESS and EXIT_FAILURE are defined in stdlib.h, not sysexits.h
so no need to include the latter.

* No need to include pthread.h.

* Remove the no longer used delay() function.
This also removes the reliance on nanosleep().

* Remove get_tcp_windowsize() and set_tcp_windowsize() which are unused.
These days, iperf uses get/setsockopt() with SO_SNDBUF SO_RCVBUF directly.

1 files changed, 0 insertions, 63 deletions

diff --git a/configure b/configure
index 3e3de25..045006c 100755
--- a/configure
+++ b/configure
@@ -12311,69 +12311,6 @@ exit 1
 fi
 
 
-# Solaris puts nanosleep in -lrt
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing nanosleep" >&5
-$as_echo_n "checking for library containing nanosleep... " >&6; }
-if ${ac_cv_search_nanosleep+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_func_search_save_LIBS=$LIBS
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char nanosleep ();
-int
-main ()
-{
-return nanosleep ();
-  ;
-  return 0;
-}
-_ACEOF
-for ac_lib in '' rt; do
-  if test -z "$ac_lib"; then
-    ac_res="none required"
-  else
-    ac_res=-l$ac_lib
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
-  fi
-  if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_search_nanosleep=$ac_res
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext
-  if ${ac_cv_search_nanosleep+:} false; then :
-  break
-fi
-done
-if ${ac_cv_search_nanosleep+:} false; then :
-
-else
-  ac_cv_search_nanosleep=no
-fi
-rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_nanosleep" >&5
-$as_echo "$ac_cv_search_nanosleep" >&6; }
-ac_res=$ac_cv_search_nanosleep
-if test "$ac_res" != no; then :
-  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
-
-else
-
-echo "nanosleep() required for timing operations."
-exit 1
-
-fi
-
-
 # On illumos we need -lsocket
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing socket" >&5
 $as_echo_n "checking for library containing socket... " >&6; }