diff --git a/configure b/configure
index 0381739..a26c477 100755
--- a/configure
+++ b/configure
@@ -6845,93 +6845,6 @@ _ACEOF
 
 
 
-{ echo "$as_me:$LINENO: checking the system's memory page size" >&5
-echo $ECHO_N "checking the system's memory page size... $ECHO_C" >&6; }
-pagesize="no"
-if test "$cross_compiling" = yes; then
-  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
-See \`config.log' for more details." >&5
-echo "$as_me: error: cannot run test program while cross compiling
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-#include <stdio.h>
-#if HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-
-int main(void) {
-    FILE *fp = fopen("conftest.malloc", "w");
-
-    if (fp != NULL) {
-        fprintf(fp, "%d\n", getpagesize());
-        fclose(fp);
-    } else
-        exit(1);
-    exit(0);
-}
-_ACEOF
-rm -f conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_link") 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-
-if test -f "conftest.malloc" ; then
-    pagesize=`cat conftest.malloc`
-fi
-
-else
-  echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-
-
-if test "$pagesize" != "no" ; then
-    { echo "$as_me:$LINENO: result: $pagesize" >&5
-echo "${ECHO_T}$pagesize" >&6; }
-else
-    if test "$ac_cv_sizeof_int" = "4" ; then
-        pagesize=4096
-    else
-        pagesize=8192
-    fi
-    { echo "$as_me:$LINENO: result: $pagesize (guessing)" >&5
-echo "${ECHO_T}$pagesize (guessing)" >&6; }
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define MALLOC_PAGESIZE $pagesize
-_ACEOF
-
-
-
 { echo "$as_me:$LINENO: checking for library containing socket" >&5
 echo $ECHO_N "checking for library containing socket... $ECHO_C" >&6; }
 if test "${ac_cv_search_socket+set}" = set; then
@@ -7110,114 +7023,6 @@ fi
 
 fi
 
-{ echo "$as_me:$LINENO: checking for struct sockaddr.sa_len" >&5
-echo $ECHO_N "checking for struct sockaddr.sa_len... $ECHO_C" >&6; }
-if test "${ac_cv_member_struct_sockaddr_sa_len+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <sys/socket.h>
-
-
-int
-main ()
-{
-static struct sockaddr ac_aggr;
-if (ac_aggr.sa_len)
-return 0;
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_cv_member_struct_sockaddr_sa_len=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <sys/socket.h>
-
-
-int
-main ()
-{
-static struct sockaddr ac_aggr;
-if (sizeof ac_aggr.sa_len)
-return 0;
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_cv_member_struct_sockaddr_sa_len=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_member_struct_sockaddr_sa_len=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_member_struct_sockaddr_sa_len" >&5
-echo "${ECHO_T}$ac_cv_member_struct_sockaddr_sa_len" >&6; }
-if test $ac_cv_member_struct_sockaddr_sa_len = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define SOCKADDR_IN_HAS_LEN 1
-_ACEOF
-
-fi
-
-
 { echo "$as_me:$LINENO: checking for socklen_t" >&5
 echo $ECHO_N "checking for socklen_t... $ECHO_C" >&6; }
 if test "${ac_cv_type_socklen_t+set}" = set; then
diff --git a/include/setup.h.in b/include/setup.h.in
index f999e3f..5a50b6b 100644
--- a/include/setup.h.in
+++ b/include/setup.h.in
@@ -174,9 +174,6 @@
 /* Prefix where help file are installed. */
 #undef HELP_DIR
 
-/* Define if IPv6 support is present and available. */
-#undef IPV6
-
 /* Prefix where the ircd is installed. */
 #undef IRCD_PREFIX
 
@@ -189,9 +186,6 @@
 /* Prefix where to write logfiles. */
 #undef LOG_DIR
 
-/* the system's memory page size */
-#undef MALLOC_PAGESIZE
-
 /* Sizeof member heap. */
 #undef MEMBER_HEAP_SIZE
 
@@ -216,9 +210,6 @@
 /* Define to 1 if you wish to disable the block allocator. */
 #undef NOBALLOC
 
-/* Define to 1 if your system has no in6addr_any. */
-#undef NO_IN6ADDR_ANY
-
 /* Define to the address where bug reports for this package should be sent. */
 #undef PACKAGE_BUGREPORT
 
@@ -258,9 +249,6 @@
 /* The size of `short', as computed by sizeof. */
 #undef SIZEOF_SHORT
 
-/* Define to 1 if sockaddr has a 'sa_len' member. */
-#undef SOCKADDR_IN_HAS_LEN
-
 /* Define this to enable soft asserts. */
 #undef SOFT_ASSERT