Skip jsmathz.test_emscripten_api_export_all (emscripten-core#25622)

Fixes: emscripten-core#25620

Author: sbc100

test/test_core.py

@@ -1863,6 +1863,8 @@ def test_set_align(self):
   })
   def test_emscripten_api(self, args):
     if '-sMAIN_MODULE' in args:
+      if self.get_setting('JS_MATH'):
+        self.skipTest('JS_MATH is not compatible with MAIN_MODULE')
       self.check_dylink()
     self.do_core_test('test_emscripten_api.c', cflags=args)
 

tools/link.py

@@ -1089,9 +1089,10 @@ def limit_incoming_module_api():
 
   # Use settings
 
-  if settings.JS_MATH:
-    if settings.MAIN_MODULE == 1:
-      exit_with_error('JS_MATH is not compatible with dynamic linking (MAIN_MODULE=1)')
+  if settings.JS_MATH and settings.MAIN_MODULE == 1:
+    # MODULE_MODULE=1 adds`--whole-archive` around all the system libraries which
+    # results in duplicate math symbols when JS_MATH is used.
+    exit_with_error('JS_MATH is not compatible with dynamic linking (MAIN_MODULE=1)')
 
   if settings.WASM == 2 and settings.SINGLE_FILE:
     exit_with_error('cannot have both WASM=2 and SINGLE_FILE enabled at the same time')