Mark -sDETERMINISIC as deprecated.

ChangeLog.md

@@ -22,6 +22,7 @@ See docs/process.md for more on how version tagging works.
 ----------------------
 - The minimum version of node supported by the generated code was bumped from
   v12.22.0 to v18.3.0. (#26604)
+- The DETERMINISIC settings was marked as deprecated ()
 
 5.0.5 - 04/03/26
 ----------------

site/source/docs/tools_reference/settings_reference.rst

@@ -1787,6 +1787,8 @@ browser's language setting (which would mean you can get different results
 in different browsers, or in the browser and in node).
 Good for comparing builds for debugging purposes (and nothing else).
 
+.. note:: This setting is deprecated
+
 Default value: false
 
 .. _modularize:
@@ -3421,6 +3423,7 @@ these settings please open a bug (or reply to one of the existing bugs).
  - ``ASYNCIFY_EXPORTS``: please use JSPI_EXPORTS instead
  - ``LINKABLE``: under consideration for removal (https://github.com/emscripten-core/emscripten/issues/25262)
  - ``EXPORT_EXCEPTION_HANDLING_HELPERS``: getExceptionMessage is exported anyway when ASSERTIONS or EXCEPTION_STACK_TRACES is set, which are set by default at -O0. At -O1 or above, you can export it separately by -sEXPORTED_RUNTIME_METHODS=getExceptionMessage,decrementExceptionRefcount.
+ - ``DETERMINISTIC``: under consideration for removal (https://github.com/emscripten-core/emscripten/issues/26647)
 
 .. _legacy-settings:
 

src/settings.js

@@ -1213,6 +1213,7 @@ var SMALL_XHR_CHUNKS = false;
 // in different browsers, or in the browser and in node).
 // Good for comparing builds for debugging purposes (and nothing else).
 // [link]
+// [deprecated]
 var DETERMINISTIC = false;
 
 // By default we emit all code in a straightforward way into the output

test/test_other.py

@@ -12059,7 +12059,7 @@ def test_deterministic(self):
   printf("JS random: %d\n", EM_ASM_INT({ return Math.random() }));
 }
 ''')
-    self.run_process([EMCC, 'src.c', '-sDETERMINISTIC'] + self.get_cflags())
+    self.run_process([EMCC, 'src.c', '-sDETERMINISTIC', '-Wno-deprecated'] + self.get_cflags())
     one = self.run_js('a.out.js')
     # ensure even if the time resolution is 1 second, that if we see the real
     # time we'll see a difference

tools/settings.py

@@ -115,6 +115,7 @@
     'ASYNCIFY_EXPORTS': 'please use JSPI_EXPORTS instead',
     'LINKABLE': 'under consideration for removal (https://github.com/emscripten-core/emscripten/issues/25262)',
     'EXPORT_EXCEPTION_HANDLING_HELPERS': 'getExceptionMessage is exported anyway when ASSERTIONS or EXCEPTION_STACK_TRACES is set, which are set by default at -O0. At -O1 or above, you can export it separately by -sEXPORTED_RUNTIME_METHODS=getExceptionMessage,decrementExceptionRefcount.',
+    'DETERMINISTIC': 'under consideration for removal (https://github.com/emscripten-core/emscripten/issues/26647)',
 }
 
 # Settings that don't need to be externalized when serializing to json because they