interim commit with incomplete tasking routines

qse/configure

@@ -16070,7 +16070,7 @@ fi
 
 done
 
-for ac_header in time.h sys/time.h utime.h spawn.h execinfo.h
+for ac_header in time.h sys/time.h utime.h spawn.h execinfo.h ucontext.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
@@ -16260,6 +16260,18 @@ _ACEOF
 fi
 done
 
+for ac_func in makecontext swapcontext getcontext setcontext
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
 for ac_func in if_nametoindex if_indextoname
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`