Use shared libraries for dependencies in pyodide

Author: oscarbenjamin

bin/pyodide_build_dependencies.sh

@@ -129,3 +129,18 @@ fi
     emmake make install
 
 cd ..
+
+
+# ----------------Build shared libraries from static archives --------------#
+
+
+emcc -shared -sSIDE_MODULE=2 -o "$WASM_LIBRARY_DIR/lib/libgmp.so" \
+    -Wl,--whole-archive "$WASM_LIBRARY_DIR/lib/libgmp.a" -Wl,--no-whole-archive
+
+emcc -shared -sSIDE_MODULE=2 -o "$WASM_LIBRARY_DIR/lib/libmpfr.so" \
+    -Wl,--whole-archive "$WASM_LIBRARY_DIR/lib/libmpfr.a" -Wl,--no-whole-archive \
+    -L"$WASM_LIBRARY_DIR/lib" -lgmp
+
+emcc -shared -sSIDE_MODULE=2 -o "$WASM_LIBRARY_DIR/lib/libflint.so" \
+    -Wl,--whole-archive "$WASM_LIBRARY_DIR/lib/libflint.a" -Wl,--no-whole-archive \
+    -L"$WASM_LIBRARY_DIR/lib" -lmpfr -lgmp

pyproject.toml

@@ -179,15 +179,16 @@ repair-wheel-command = [
 
 [tool.cibuildwheel.pyodide]
 before-all = "bin/cibw_before_all_pyodide.sh"
-before-build = "pip install wheel"
+before-build = "pip install wheel auditwheel_emscripten"
 
 # This needs to be kept in sync with the Pyodide row in
 # .github/workflows/buildwheel.yml. The Pyodide version pins both an
 # Emscripten version and a CPython minor version. The command
 # `pyodide xbuildenv search --all` shows the compatible combinations.
 pyodide-version = "0.28.2"
 
-# GMP, MPFR, and FLINT are built as static libraries for Pyodide.
+# GMP, MPFR, and FLINT are built as shared libraries for Pyodide and bundled
+# into the wheel.
 repair-wheel-command = [
 """python bin/cibw_repair_wheel_licenses.py "{wheel}" \
     --license LGPL-3.0-or-later \
@@ -198,7 +199,7 @@ repair-wheel-command = [
     --license-file 'wasm-library-dir/src/flint-*/COPYING:python-flint.libs/flint-*/COPYING' \
     --license-file 'wasm-library-dir/src/flint-*/COPYING.LESSER:python-flint.libs/flint-*/COPYING.LESSER' \
 """,
-"cp \"{wheel}\" \"{dest_dir}\"",
+"pyodide auditwheel repair --libdir wasm-library-dir --output-dir {dest_dir} {wheel}",
 ]
 
 [tool.cibuildwheel.pyodide.environment]