Fix in-source build of MaxCtrl

The npm install command must generate the version.js file in order for the
in-source builds to work.

maxctrl/CMakeLists.txt

@@ -4,7 +4,7 @@ if (BUILD_MAXCTRL)
 
   if (NPM_FOUND AND NODEJS_FOUND AND NODEJS_VERSION VERSION_GREATER "6.0.0")
 
-    configure_file(${CMAKE_CURRENT_SOURCE_DIR}/lib/version.js.in ${CMAKE_CURRENT_BINARY_DIR}/lib/version.js @ONLY)
+    include(configure_version.cmake)
 
     add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/maxctrl/maxctrl
       COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/build.sh ${CMAKE_SOURCE_DIR}

maxctrl/configure_version.cmake

@@ -0,0 +1,2 @@
+include(../VERSION22.cmake)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/lib/version.js.in ${CMAKE_CURRENT_BINARY_DIR}/lib/version.js @ONLY)

maxctrl/package.json

@@ -5,7 +5,8 @@
   "repository": "https://github.com/mariadb-corporation/MaxScale",
   "main": "maxctrl.js",
   "scripts": {
-    "test": "nyc mocha --timeout 15000 --slow 10000"
+    "test": "nyc mocha --timeout 15000 --slow 10000",
+    "preinstall": "cmake -P configure_version.cmake"
   },
   "keywords": [
     "maxscale"