diff --git a/configure b/configure
index 8ada6765a..f27b00bb5 100755
--- a/configure
+++ b/configure
@@ -28178,6 +28178,78 @@ fi
 	;;
 esac
 
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the linker accepts -Wl,--allow-multiple-definition" >&5
+printf %s "checking whether the linker accepts -Wl,--allow-multiple-definition... " >&6; }
+if test ${ax_cv_check_ldflags___Wl___allow_multiple_definition+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+  ax_check_save_flags=$LDFLAGS
+  LDFLAGS="$LDFLAGS  -Wl,--allow-multiple-definition"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main (void)
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ax_cv_check_ldflags___Wl___allow_multiple_definition=yes
+else $as_nop
+  ax_cv_check_ldflags___Wl___allow_multiple_definition=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  LDFLAGS=$ax_check_save_flags
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_ldflags___Wl___allow_multiple_definition" >&5
+printf "%s\n" "$ax_cv_check_ldflags___Wl___allow_multiple_definition" >&6; }
+if test x"$ax_cv_check_ldflags___Wl___allow_multiple_definition" = xyes
+then :
+
+if test ${LDFLAGS+y}
+then :
+
+  case " $LDFLAGS " in #(
+  *" -Wl,--allow-multiple-definition "*) :
+    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : LDFLAGS already contains -Wl,--allow-multiple-definition"; } >&5
+  (: LDFLAGS already contains -Wl,--allow-multiple-definition) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } ;; #(
+  *) :
+
+     as_fn_append LDFLAGS " -Wl,--allow-multiple-definition"
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : LDFLAGS=\"\$LDFLAGS\""; } >&5
+  (: LDFLAGS="$LDFLAGS") 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+     ;;
+esac
+
+else $as_nop
+
+  LDFLAGS=-Wl,--allow-multiple-definition
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : LDFLAGS=\"\$LDFLAGS\""; } >&5
+  (: LDFLAGS="$LDFLAGS") 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+
+fi
+
+else $as_nop
+  :
+fi
+
+
 if test -n "$GCC"; then
     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -fvisibility=hidden" >&5
 printf %s "checking whether C compiler accepts -fvisibility=hidden... " >&6; }
diff --git a/configure.ac b/configure.ac
index 5667dfb47..d554be2f4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4456,6 +4456,12 @@ case "$OS" in
 	;;
 esac
 
+dnl
+dnl For fuzz_policy we redefine getaddrinfo() and freeaddrinfo(), but
+dnl this can cause problems with ld.lld when sanitizers are enabled.
+dnl
+AX_CHECK_LINK_FLAG([-Wl,--allow-multiple-definition], [AX_APPEND_FLAG([-Wl,--allow-multiple-definition], [LDFLAGS])])
+
 dnl
 dnl Check for symbol visibility support.
 dnl This test relies on AC_LANG_WERROR