Update CMakeLists.txt

Author: mcbarton

CMakeLists.txt

@@ -129,14 +129,14 @@ function(configure_kernel kernel)
     string(REPLACE "\\" "/" XEUS_CPP_INCLUDE_DIR "${XEUS_CPP_INCLUDE_DIR}")
   endif()
   if(EMSCRIPTEN)
-    set(prefix "wasm")
+    set(prefix "wasm_")
   else()
     set(XEUS_CPP_PATH "$ENV{PATH}")
     set(XEUS_CPP_LD_LIBRARY_PATH "$ENV{LD_LIBRARY_PATH}")
     set(XEUS_CPP_INCLUDE_DIR ${CMAKE_INSTALL_PREFIX}/include)
   endif()
   configure_file(
-    "${CMAKE_CURRENT_SOURCE_DIR}${kernel}${prefix}_kernel.json.in"
+    "${CMAKE_CURRENT_SOURCE_DIR}${kernel}${prefix}kernel.json.in"
     "${CMAKE_CURRENT_BINARY_DIR}${kernel}kernel.json"
   )
   configure_file(