diff -up configure.orig configure
--- configure.orig	2022-01-19 20:48:45.387511953 +0100
+++ configure	2022-01-19 20:59:28.559523809 +0100
@@ -15016,108 +15016,13 @@ else
 printf "%s\n" "no" >&6; }
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking default TCP send buffer size" >&5
-printf %s "checking default TCP send buffer size... " >&6; }
-if test "$cross_compiling" = yes
-then :
-  CONF_TCP_SO_SNDBUF=65536
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#include <stdio.h>
-#ifdef STDC_HEADERS
-# include <stdlib.h>
-# include <stddef.h>
-#else
-# if HAVE_STDLIB_H
-#  include <stdlib.h>
-# endif
-#endif
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-int main(void)
-{
-    int fd,val=0,len=sizeof(int);
-    if ((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0) return 1;
-        if (getsockopt(fd, SOL_SOCKET, SO_SNDBUF, &val, &len) < 0) return 1;
-    if (val <= 0) return 1;
-        fprintf (fopen("conftestval", "w"), "%d\n", val);
-    return 0;
-}
-
-_ACEOF
-if ac_fn_c_try_run "$LINENO"
-then :
-  CONF_TCP_SO_SNDBUF=`cat conftestval`
-else $as_nop
-  CONF_TCP_SO_SNDBUF=65536
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CONF_TCP_SO_SNDBUF" >&5
-printf "%s\n" "$CONF_TCP_SO_SNDBUF" >&6; }
-
 
-printf "%s\n" "#define CONF_TCP_SO_SNDBUF $CONF_TCP_SO_SNDBUF" >>confdefs.h
+printf "%s\n" "#define CONF_TCP_SO_SNDBUF 65536" >>confdefs.h
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking default TCP receive buffer size" >&5
-printf %s "checking default TCP receive buffer size... " >&6; }
-if test "$cross_compiling" = yes
-then :
-  CONF_TCP_SO_RCVBUF=65536
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#include <stdio.h>
-#ifdef STDC_HEADERS
-# include <stdlib.h>
-# include <stddef.h>
-#else
-# if HAVE_STDLIB_H
-#  include <stdlib.h>
-# endif
-#endif
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-int main(void)
-{
-    int fd,val=0,len=sizeof(int);
-    if ((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0) return 1;
-        if (getsockopt(fd, SOL_SOCKET, SO_RCVBUF, &val, &len) < 0) return 1;
-    if (val <= 0) return 1;
-        fprintf (fopen("conftestval", "w"), "%d\n", val);
-    return 0;
-}
-
-_ACEOF
-if ac_fn_c_try_run "$LINENO"
-then :
-  CONF_TCP_SO_RCVBUF=`cat conftestval`
-else $as_nop
-  CONF_TCP_SO_RCVBUF=65536
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CONF_TCP_SO_RCVBUF" >&5
-printf "%s\n" "$CONF_TCP_SO_RCVBUF" >&6; }
 
 
-printf "%s\n" "#define CONF_TCP_SO_RCVBUF $CONF_TCP_SO_RCVBUF" >>confdefs.h
+printf "%s\n" "#define CONF_TCP_SO_RCVBUF 65536" >>confdefs.h