adjust memory setting for wasm, hoping to run it on mobile.

Author: syoyo

web/CMakeLists.txt

@@ -53,7 +53,8 @@ if (EMSCRIPTEN)
 endif()
 
 # TODO: Adjust memory size.
-set_target_properties(${BUILD_TARGET} PROPERTIES LINK_FLAGS "-s INITIAL_MEMORY=32MB -s TOTAL_MEMORY=256MB -sTOTAL_STACK=32MB -sASSERTIONS -s ALLOW_MEMORY_GROWTH=1 -s WASM=1 -sMODULARIZE -sEXPORT_ES6=1 --bind")
+# 4MB stack
+set_target_properties(${BUILD_TARGET} PROPERTIES LINK_FLAGS "-sENVIRONMENT='web,worker' -sSTACK_SIZE=4000000 -sASSERTIONS -s ALLOW_MEMORY_GROWTH=1 -sMODULARIZE=1 -sEXPORT_ES6 -sINVOKE_RUN=0 --bind")
 
 # ENVIRONMENT=web
 # SINGLE_FILE=1