--- asterisk-1.4.39-rc1/configure.ac.orig	2011-01-09 12:46:51.000000000 -0600
+++ asterisk-1.4.39-rc1/configure.ac	2011-01-09 12:48:28.000000000 -0600
@@ -485,40 +485,6 @@
 	AC_MSG_RESULT(cross-compile)
 )
 
-ac_cv_have_variable_fdset=0
-AC_MSG_CHECKING(if we can increase the maximum select-able file descriptor)
-AC_RUN_IFELSE(
-AC_LANG_PROGRAM([
-#include <stdio.h>
-#include <sys/select.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-#include <string.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-], [[
-	struct rlimit rlim = { FD_SETSIZE + 2, FD_SETSIZE + 2 };
-	int fd[[2]];
-	struct timeval tv = { 0, };
-	struct ast_fdset { long fds_bits[[1024]]; } fds = { { 0, } };
-	if (setrlimit(RLIMIT_NOFILE, &rlim)) { exit(1); }
-	if ((fd0 = open("/dev/null", O_RDONLY)) < 0) { exit(1); }
-	if (dup2(fd0, (fd1 = FD_SETSIZE + 1)) < 0) { exit(1); }
-	FD_SET(fd[[0]], (fd_set *) &fds);
-	FD_SET(fd[[1]], (fd_set *) &fds);
-	if (select(FD_SETSIZE + 2, (fd_set *) &fds, NULL, NULL, &tv) < 0) { exit(1); }
-	exit(0)]]),
-	AC_MSG_RESULT(yes)
-	ac_cv_have_variable_fdset=1
-	AC_DEFINE([HAVE_VARIABLE_FDSET], 1, [Define to 1 if your system can support larger than default select bitmasks.]),
-	AC_MSG_RESULT(no),
-	AC_MSG_RESULT(cross-compile)
-)
-
 if test "${ac_cv_have_variable_fdset}x" = "0x"; then
 	AC_RUN_IFELSE(
 		AC_LANG_PROGRAM([