Add _calloc to exported methods

Author: carlopi

lib/CMakeLists.txt

@@ -293,6 +293,7 @@ if(EMSCRIPTEN)
       -s EXPORTED_FUNCTIONS='[ \
           _main, \
           _malloc, \
+          _calloc, \
           _free, \
           _duckdb_web_clear_response, \
           _duckdb_web_collect_file_stats, \

scripts/wasm_build_lib.sh

@@ -71,7 +71,7 @@ emmake make \
 
 npm install -g js-beautify
 js-beautify ${BUILD_DIR}/duckdb_wasm.js > ${BUILD_DIR}/beauty.js
-awk '!(/var .*wasmExports\[/ || /var [_a-z0-9A-Z]+ = Module\[\"[_a-z0-9A-Z]+\"\] = [0-9]+;/) || /var _duckdb_web/ || /var _main/ || /var _malloc/ || /var _free/ || /var stack/ || /var ___dl_seterr/ || /var __em/ || /var _em/ || /var _pthread/' ${BUILD_DIR}/beauty.js > ${BUILD_DIR}/duckdb_wasm.js
+awk '!(/var .*wasmExports\[/ || /var [_a-z0-9A-Z]+ = Module\[\"[_a-z0-9A-Z]+\"\] = [0-9]+;/) || /var _duckdb_web/ || /var _main/ || /var _calloc/ || /var _malloc/ || /var _free/ || /var stack/ || /var ___dl_seterr/ || /var __em/ || /var _em/ || /var _pthread/' ${BUILD_DIR}/beauty.js > ${BUILD_DIR}/duckdb_wasm.js
 
 cp ${BUILD_DIR}/duckdb_wasm.wasm ${DUCKDB_LIB_DIR}/duckdb${SUFFIX}.wasm
 sed \