build(win): Add dep to create dir before use

Add a CMake dependency for Windows builds to create
the layers/$CONFIG directory before running any of the
other steps that copy the layer json files to this directory.

This failure was sporadic and often did not fail because
other build steps that compiled the layers often created this
directory before the copy steps executed.

Because of the difficulty in reproducing this problem, it is not
certain that this fixes the problem.  However, the mac Xcode
builds were already using this pattern to achieve the same goal.

diff --git a/layers/CMakeLists.txt b/layers/CMakeLists.txt
index 7a1390a..9ade6a0 100644 (file)
--- a/layers/CMakeLists.txt
+++ b/layers/CMakeLists.txt
@@ -1,6 +1,8 @@
 cmake_minimum_required (VERSION 2.8.11)
 if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
     add_definitions(-DVK_USE_PLATFORM_WIN32_KHR -DVK_USE_PLATFORM_WIN32_KHX -DWIN32_LEAN_AND_MEAN)
+    add_custom_target(mk_layer_config_dir ALL COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/$<CONFIG>)
+    set_target_properties(mk_layer_config_dir PROPERTIES FOLDER ${LVL_TARGET_FOLDER})
     set(DisplayServer Win32)
 elseif(CMAKE_SYSTEM_NAME STREQUAL "Android")
     add_definitions(-DVK_USE_PLATFORM_ANDROID_KHR -DVK_USE_PLATFORM_ANDROID_KHX)
@@ -48,8 +50,9 @@ if (WIN32)
         if (CMAKE_GENERATOR MATCHES "^Visual Studio.*")
             foreach (config_file ${LAYER_JSON_FILES})
                 FILE(TO_NATIVE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/windows/${config_file}.json src_json)
-                FILE(TO_NATIVE_PATH ${CMAKE_CURRENT_BINARY_DIR}/$<CONFIGURATION>/${config_file}.json dst_json)
+                FILE(TO_NATIVE_PATH ${CMAKE_CURRENT_BINARY_DIR}/$<CONFIG>/${config_file}.json dst_json)
                 add_custom_target(${config_file}-json ALL
+                    DEPENDS mk_layer_config_dir
                     COMMAND copy ${src_json} ${dst_json}
                     VERBATIM
                     )