From ace90a47416b74f0fcfc34b5da3fe8ac6d03609d Mon Sep 17 00:00:00 2001
From: Matthias Koeppe <mkoeppe@math.ucdavis.edu>
Date: Sun, 19 Jul 2026 17:26:25 -0700
Subject: [PATCH 1/2] recipes/recipes_emscripten/mathics3: New

---
 .../recipes_emscripten/mathics3/recipe.yaml   | 83 +++++++++++++++++++
 .../mathics3/test_import_mathics.py           |  5 ++
 2 files changed, 88 insertions(+)
 create mode 100644 recipes/recipes_emscripten/mathics3/recipe.yaml
 create mode 100644 recipes/recipes_emscripten/mathics3/test_import_mathics.py

diff --git a/recipes/recipes_emscripten/mathics3/recipe.yaml b/recipes/recipes_emscripten/mathics3/recipe.yaml
new file mode 100644
index 0000000000..4be4d28cd4
--- /dev/null
+++ b/recipes/recipes_emscripten/mathics3/recipe.yaml
@@ -0,0 +1,83 @@
+context:
+  version: 10.0.1
+
+package:
+  name: mathics3
+  version: ${{ version }}
+
+source:
+- url: https://files.pythonhosted.org/packages/source/m/mathics3/mathics3-${{ version }}.tar.gz
+  sha256: fbf153b110245fbfa4e7f4098f13c86e8d616f986b805ede80d3051b400ddd94
+
+build:
+  number: 0
+  script: ${{ PYTHON }} -m pip install .
+
+requirements:
+  build:
+  - python
+  - cross-python_${{ target_platform }}
+  - ${{ compiler('c') }}
+  - pip
+  - cython
+  - setuptools
+  - wheel
+  host:
+  - python
+  - mathics3-scanner
+  - packaging
+  run:
+  - python
+  - mathics3-scanner
+  - mpmath
+  - numpy
+  - palettable
+  - pillow
+  - pint
+  - python-dateutil
+  - pympler
+  - requests
+  - scipy
+  - setuptools
+  - timed-threads
+  - sympy
+  # - pexpect # extra == "dev"
+  # - pytest # extra == "dev"
+  # - ipywidgets # extra == "full"
+  # - llvmlite # extra == "full"
+  # - lxml # extra == "full"
+  # - psutil # extra == "full"
+  # - pyocr # extra == "full"
+  # - scikit-image >=0.17 # extra == "full"
+  # - unidecode # extra == "full"
+  # - wordcloud >=1.9.3 # extra == "full"
+  # - cython # extra == "cython"
+
+tests:
+- script: pytester
+  files:
+    recipe:
+    - test_import_mathics.py
+  requirements:
+    build:
+    - pytester
+    run:
+    - pytester-run
+    - pexpect
+
+about:
+  summary: 'A general-purpose computer algebra system.'
+  description: |
+    Core of Mathics3, the open-source Mathematica, a general-purpose computer algebra system.
+  license: GPL-3.0-or-later
+  license_file:
+  - COPYING.txt
+  - AUTHORS.txt
+
+extra:
+  emscripten_tests:
+    python:
+      pytest_files:
+      - test_import_mathics.py
+  recipe-maintainers:
+  - mkoeppe
diff --git a/recipes/recipes_emscripten/mathics3/test_import_mathics.py b/recipes/recipes_emscripten/mathics3/test_import_mathics.py
new file mode 100644
index 0000000000..787178908f
--- /dev/null
+++ b/recipes/recipes_emscripten/mathics3/test_import_mathics.py
@@ -0,0 +1,5 @@
+import pytest
+
+
+def test_import_mathics():
+    import mathics

From 9cde197ccd99c95208f42400a66718cb718bf041 Mon Sep 17 00:00:00 2001
From: Matthias Koeppe <mkoeppe@math.ucdavis.edu>
Date: Sun, 19 Jul 2026 17:49:15 -0700
Subject: [PATCH 2/2] recipes/recipes_emscripten/mathics3/recipe.yaml: Set
 USE_CYTHON=True

---
 recipes/recipes_emscripten/mathics3/recipe.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/recipes/recipes_emscripten/mathics3/recipe.yaml b/recipes/recipes_emscripten/mathics3/recipe.yaml
index 4be4d28cd4..cafca7a461 100644
--- a/recipes/recipes_emscripten/mathics3/recipe.yaml
+++ b/recipes/recipes_emscripten/mathics3/recipe.yaml
@@ -11,7 +11,9 @@ source:
 
 build:
   number: 0
-  script: ${{ PYTHON }} -m pip install .
+  script: |
+    export USE_CYTHON=True
+    ${{ PYTHON }} -m pip install .
 
 requirements:
   build: