Transition to cmake on Windows

[xoft]

One option have just discovered is to have cmake run tolua++ during configure time using execute_process().

I'm trying that right now, but am having trouble - the command is not executed.

---

I currently have this code in the "MSVC" branch of $/src/CMakeLists.txt:

Code:

    if (NOT EXISTS "${PROJECT_SOURCE_DIR}/src/Bindings/Bindings.cpp")
        message("Bindings.cpp not found, generating now")
        execute_process(
            COMMAND ${PROJECT_SOURCE_DIR}/src/Bindings/tolua++.exe -L virtual_method_hooks.lua -o Bindings.cpp -H Bindings.h AllToLua.pkg
            COMMAND echo test
            WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/src/Bindings
            OUTPUT_VARIABLE ToLuaOut
            ERROR_VARIABLE  ToLuaErr
            RESULT_VARIABLE TOLuaRes
        )
        message("Result:" ${ToLuaRes})
        message("Output:" ${ToLuaOut})
        message("Error: " ${ToLuaErr})
    endif()

I get the following output, which I interpret as "no command has been run":

Code:

Bindings.cpp not found, generating now
Result:
Output:
Error:

---

Waitaminute! When I remove the tolua++ command and leave only the echo command, it works as expected.

---

Ah! It works! Seems like cmake cannot concat variables for the command, so I had to put the entire tolue++.exe path into a separate variable. This seems to have done the trick:

Code:

    # Check the Bindings existence:
    if (NOT EXISTS "${PROJECT_SOURCE_DIR}/Bindings/Bindings.cpp")
        message("Bindings.cpp not found, generating now")
        set(tolua_executable ${PROJECT_SOURCE_DIR}/Bindings/tolua++.exe)
        execute_process(
            COMMAND ${tolua_executable} -L virtual_method_hooks.lua -o Bindings.cpp -H Bindings.h AllToLua.pkg
            WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/Bindings
            OUTPUT_VARIABLE ToLuaOut
            ERROR_VARIABLE  ToLuaErr
            RESULT_VARIABLE ToLuaRes
        )
    endif()