Error on use of for MINIMAL_RUNTIME_STREAMING_* + SINGLE_FILE (#24859)

Fundamentally streaming compilation and streaming instantiation operate
on fetch responses but in `SINGLE_FILE` mode the module bytes are always
local.

Author: sbc100

ChangeLog.md

@@ -23,6 +23,9 @@ See docs/process.md for more on how version tagging works.
 - emcc will now error if `MINIMAL_RUNTIME_STREAMING_WASM_COMPILATION` is used
   when not generating html output.  This was always incompatible but previously
   ignored. (#24849)
+- emcc will now error if `MINIMAL_RUNTIME_STREAMING_WASM_COMPILATION` or
+  `MINIMAL_RUNTIME_STREAMING_WASM_INSTANTIATION` are used with `SINGLE_FILE`.
+  These are fundamentally incompatible but were previously ignored. (#24849)
 
 4.0.12 - 08/01/25
 -----------------

test/test_other.py

@@ -1661,6 +1661,12 @@ def test_minimal_runtime_errors(self):
     err = self.expect_fail([EMCC, test_file('hello_world.c'), '-sMINIMAL_RUNTIME', '-sMINIMAL_RUNTIME_STREAMING_WASM_COMPILATION'])
     self.assertContained('emcc: error: MINIMAL_RUNTIME_STREAMING_WASM_COMPILATION is only compatible with html output', err)
 
+    err = self.expect_fail([EMCC, test_file('hello_world.c'), '-sMINIMAL_RUNTIME', '-sMINIMAL_RUNTIME_STREAMING_WASM_COMPILATION', '-oout.html', '-sSINGLE_FILE'])
+    self.assertContained('emcc: error: MINIMAL_RUNTIME_STREAMING_WASM_COMPILATION is not compatible with SINGLE_FILE', err)
+
+    err = self.expect_fail([EMCC, test_file('hello_world.c'), '-sMINIMAL_RUNTIME', '-sMINIMAL_RUNTIME_STREAMING_WASM_INSTANTIATION', '-oout.html', '-sSINGLE_FILE'])
+    self.assertContained('emcc: error: MINIMAL_RUNTIME_STREAMING_WASM_INSTANTIATION is not compatible with SINGLE_FILE', err)
+
   def test_export_all_and_exported_functions(self):
     # EXPORT_ALL should not export library functions by default.
     # This means that to export library function you also need to explicitly

tools/link.py

@@ -668,6 +668,8 @@ def report_incompatible_settings():
     ('STRICT_JS', 'MODULARIZE', None),
     ('STRICT_JS', 'EXPORT_ES6', None),
     ('MINIMAL_RUNTIME_STREAMING_WASM_COMPILATION', 'MINIMAL_RUNTIME_STREAMING_WASM_INSTANTIATION', 'they are mutually exclusive'),
+    ('MINIMAL_RUNTIME_STREAMING_WASM_COMPILATION', 'SINGLE_FILE', None),
+    ('MINIMAL_RUNTIME_STREAMING_WASM_INSTANTIATION', 'SINGLE_FILE', None),
     ('SEPARATE_DWARF', 'WASM2JS', 'as there is no wasm file'),
     ('GL_SUPPORT_AUTOMATIC_ENABLE_EXTENSIONS', 'NO_GL_SUPPORT_SIMPLE_ENABLE_EXTENSIONS', None),
     ('MODULARIZE', 'NODEJS_CATCH_REJECTION', None),