Enable threads support on emscripten build.

Adventures in Lestoria/Version.h

@@ -39,7 +39,7 @@ All rights reserved.
 #define VERSION_MAJOR 1
 #define VERSION_MINOR 2
 #define VERSION_PATCH 3
-#define VERSION_BUILD 10901
+#define VERSION_BUILD 10910
 
 #define stringify(a) stringify_(a)
 #define stringify_(a) #a

CMakeLists.txt

@@ -10,6 +10,7 @@ project("Adventures in Lestoria")
 
 if (EMSCRIPTEN)
     add_compile_options("-s" "USE_FREETYPE=1")
+    add_compile_options("-pthread")
 endif()
 add_compile_options("-O2")
 
@@ -308,6 +309,8 @@ if (EMSCRIPTEN)
 	    -sFETCH=1
 	    -sEXPORTED_RUNTIME_METHODS=stringToNewUTF8
 	    -std=c++2a
+	    -pthread
+            -sPTHREAD_POOL_SIZE=navigator.hardwareConcurrency
 	    --proxy-to-worker
             --preload-file ${SOURCE_DATA_EMSCRIPTEN_DIR}@assets)
     else()