diff --git a/src/sage/doctest/parsing.py b/src/sage/doctest/parsing.py
index 5c37ea1422b..506d3208d47 100644
--- a/src/sage/doctest/parsing.py
+++ b/src/sage/doctest/parsing.py
@@ -1651,6 +1651,17 @@ def do_fixup(self, want, got):
             pythran_numpy_warning_regex = re.compile(r'WARNING: Overriding pythran description with argspec information for: numpy\.random\.[a-z_]+')
             got = pythran_numpy_warning_regex.sub('', got)
             did_fixup = True
+
+        if "duplicate" in got:
+            # New warnings as of Sept '23, OS X 13.6, new command-line
+            # tools. In particular, these seem to come from ld in
+            # Xcode 15.
+            dup_rpath_regex = re.compile("ld: warning: duplicate -rpath .* ignored")
+            dup_lib_regex = re.compile("ld: warning: ignoring duplicate libraries: .*")
+            got = dup_rpath_regex.sub('', got)
+            got = dup_lib_regex.sub('', got)
+            did_fixup = True
+
         return did_fixup, want, got
 
     def output_difference(self, example, got, optionflags):