Add makefile changes for duckdb-wasm (#90)

Makefile

@@ -119,22 +119,27 @@ clean:
 	cd duckdb && make clean
 	cd duckdb && make clean-python
 
-WASM_LINK_TIME_FLAGS=
+WASM_LINK_TIME_FLAGS=h3/lib/libh3.a
+WASM_COMPILE_TIME_COMMON_FLAGS=-DWASM_LOADABLE_EXTENSIONS=1 -DBUILD_EXTENSIONS_ONLY=1 -DSKIP_EXTENSIONS="parquet;json"
+WASM_CXX_MVP_FLAGS=
+WASM_CXX_EH_FLAGS=$(WASM_CXX_MVP_FLAGS) -fwasm-exceptions -DWEBDB_FAST_EXCEPTIONS=1
+WASM_CXX_THREADS_FLAGS=$(WASM_COMPILE_TIME_EH_FLAGS) -DWITH_WASM_THREADS=1 -DWITH_WASM_SIMD=1 -DWITH_WASM_BULK_MEMORY=1 -DUSE_PTHREADS=1 -pthread
+WASM_LINK_TIME_FLAGS=-O3 -sSIDE_MODULE=2 -sEXPORTED_FUNCTIONS="_${EXT_NAME}_version,_${EXT_NAME}_init" h3/lib/libh3.a
 
 wasm_mvp:
 	mkdir -p build/wasm_mvp
-	emcmake cmake $(GENERATOR) -DWASM_LOADABLE_EXTENSIONS=1 -DBUILD_EXTENSIONS_ONLY=1 -Bbuild/wasm_mvp -DCMAKE_CXX_FLAGS="-DDUCKDB_CUSTOM_PLATFORM=wasm_mvp" -DSKIP_EXTENSIONS="parquet" -S duckdb $(TOOLCHAIN_FLAGS) $(EXTENSION_FLAGS) -DVCPKG_CHAINLOAD_TOOLCHAIN_FILE=$(EMSDK)/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake -DDUCKDB_EXPLICIT_PLATFORM='${DUCKDB_PLATFORM}'
+	emcmake cmake $(GENERATOR) $(EXTENSION_FLAGS) $(WASM_COMPILE_TIME_COMMON_FLAGS) -Bbuild/wasm_mvp -DCMAKE_CXX_FLAGS="$(WASM_CXX_MVP_FLAGS) -DDUCKDB_CUSTOM_PLATFORM=wasm_mvp" -S duckdb -DDUCKDB_EXPLICIT_PLATFORM="wasm_mvp"
 	emmake make -j8 -Cbuild/wasm_mvp
-	cd build/wasm_mvp/extension/${EXT_NAME} && emcc $f -sSIDE_MODULE=1 -o ../../${EXT_NAME}.duckdb_extension.wasm -O3 ${EXT_NAME}.duckdb_extension.wasm $(WASM_LINK_TIME_FLAGS)
+	cd build/wasm_mvp/extension/${EXT_NAME} && emcc $f -o ../../${EXT_NAME}.duckdb_extension.wasm ${EXT_NAME}.duckdb_extension.wasm.lib $(WASM_LINK_TIME_FLAGS)
 
 wasm_eh:
 	mkdir -p build/wasm_eh
-	emcmake cmake $(GENERATOR) -DWASM_LOADABLE_EXTENSIONS=1 -DBUILD_EXTENSIONS_ONLY=1 -Bbuild/wasm_eh -DCMAKE_CXX_FLAGS="-fwasm-exceptions -DWEBDB_FAST_EXCEPTIONS=1 -DDUCKDB_CUSTOM_PLATFORM=wasm_eh" -DSKIP_EXTENSIONS="parquet" -S duckdb $(TOOLCHAIN_FLAGS) $(EXTENSION_FLAGS) -DVCPKG_CHAINLOAD_TOOLCHAIN_FILE=$(EMSDK)/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake -DDUCKDB_EXPLICIT_PLATFORM='${DUCKDB_PLATFORM}'
+	emcmake cmake $(GENERATOR) $(EXTENSION_FLAGS) $(WASM_COMPILE_TIME_COMMON_FLAGS) -Bbuild/wasm_eh -DCMAKE_CXX_FLAGS="$(WASM_CXX_EH_FLAGS) -DDUCKDB_CUSTOM_PLATFORM=wasm_eh" -S duckdb -DDUCKDB_EXPLICIT_PLATFORM="wasm_eh"
 	emmake make -j8 -Cbuild/wasm_eh
-	cd build/wasm_eh/extension/${EXT_NAME} && emcc $f -sSIDE_MODULE=1 -o ../../${EXT_NAME}.duckdb_extension.wasm -O3 ${EXT_NAME}.duckdb_extension.wasm $(WASM_LINK_TIME_FLAGS)
+	cd build/wasm_eh/extension/${EXT_NAME} && emcc $f -o ../../${EXT_NAME}.duckdb_extension.wasm ${EXT_NAME}.duckdb_extension.wasm.lib $(WASM_LINK_TIME_FLAGS)
 
 wasm_threads:
 	mkdir -p ./build/wasm_threads
-	emcmake cmake $(GENERATOR) -DWASM_LOADABLE_EXTENSIONS=1 -DBUILD_EXTENSIONS_ONLY=1 -Bbuild/wasm_threads -DCMAKE_CXX_FLAGS="-fwasm-exceptions -DWEBDB_FAST_EXCEPTIONS=1 -DWITH_WASM_THREADS=1 -DWITH_WASM_SIMD=1 -DWITH_WASM_BULK_MEMORY=1 -DDUCKDB_CUSTOM_PLATFORM=wasm_threads" -DSKIP_EXTENSIONS="parquet" -S duckdb $(TOOLCHAIN_FLAGS) $(EXTENSION_FLAGS) -DVCPKG_CHAINLOAD_TOOLCHAIN_FILE=$(EMSDK)/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake -DDUCKDB_EXPLICIT_PLATFORM='${DUCKDB_PLATFORM}'
+	emcmake cmake $(GENERATOR) $(EXTENSION_FLAGS) $(WASM_COMPILE_TIME_COMMON_FLAGS) -Bbuild/wasm_threads -DCMAKE_CXX_FLAGS="$(WASM_CXX_THREADS_FLAGS) -DDUCKDB_CUSTOM_PLATFORM=wasm_threads" -DCMAKE_C_FLAGS="-pthread" -S duckdb -DDUCKDB_EXPLICIT_PLATFORM="wasm_threads"
 	emmake make -j8 -Cbuild/wasm_threads
-	cd build/wasm_threads/extension/${EXT_NAME} && emcc $f -sSIDE_MODULE=1 -o ../../${EXT_NAME}.duckdb_extension.wasm -O3 ${EXT_NAME}.duckdb_extension.wasm $(WASM_LINK_TIME_FLAGS)
+	cd build/wasm_threads/extension/${EXT_NAME} && emcc $f -o ../../${EXT_NAME}.duckdb_extension.wasm ${EXT_NAME}.duckdb_extension.wasm.lib $(WASM_LINK_TIME_FLAGS) -sSHARED_MEMORY=1 -pthread