Update CMakeLists.txt

Author: mcbarton

unittests/CppInterOp/CMakeLists.txt

@@ -33,7 +33,7 @@ endif()
 if(EMSCRIPTEN)
   set_target_properties(CppInterOpTests PROPERTIES
     COMPILE_FLAGS "-s MAIN_MODULE=1"
-    LINK_FLAGS "-s MAIN_MODULE=1 -s WASM_BIGINT -s EXPORTED_RUNTIME_METHODS='[\"FS\",\"PATH\",\"LDSO\",\"loadDynamicLibrary\",\"ERRNO_CODES\"]' -s ALLOW_MEMORY_GROWTH=1"
+    LINK_FLAGS "-s MAIN_MODULE=1 -s WASM_BIGINT -s EXPORTED_RUNTIME_METHODS='[\"FS\",\"PATH\",\"LDSO\",\"loadDynamicLibrary\",\"ERRNO_CODES\"]' --preload-file ${SYSROOT_PATH}/include@/include -s ALLOW_MEMORY_GROWTH=1"
   )
 endif()
   target_link_libraries(CppInterOpTests
@@ -80,7 +80,7 @@ target_link_libraries(DynamicLibraryManagerTests
 if(EMSCRIPTEN)
   set_target_properties(DynamicLibraryManagerTests PROPERTIES
     COMPILE_FLAGS "-s MAIN_MODULE=1"
-    LINK_FLAGS "-s MAIN_MODULE=1 -s WASM_BIGINT -s EXPORTED_RUNTIME_METHODS='[\"FS\",\"PATH\",\"LDSO\",\"loadDynamicLibrary\",\"ERRNO_CODES\"]' -s ALLOW_MEMORY_GROWTH=1"
+    LINK_FLAGS "-s MAIN_MODULE=1 -s WASM_BIGINT -s EXPORTED_RUNTIME_METHODS='[\"FS\",\"PATH\",\"LDSO\",\"loadDynamicLibrary\",\"ERRNO_CODES\"]' --preload-file ${SYSROOT_PATH}/include@/include -s ALLOW_MEMORY_GROWTH=1"
   )
 endif()