Fix CMake build break on windows (#101)

* Fix CMake build error in android build when compling on windows.

* Replace one more instance of REACTNATIVE_DIR

Author: Alex-MSFT

Modules/@babylonjs/react-native/android/CMakeLists.txt

@@ -23,11 +23,12 @@ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
 set(BABYLON_NATIVE_PLATFORM "Android")
 set(CMAKE_CXX_EXTENSIONS OFF)
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
+file(TO_CMAKE_PATH "${REACTNATIVE_DIR}" REACTNATIVE_DIR_CMAKE)
 
 # Configure Babylon Native to use JSI
 set(NAPI_JAVASCRIPT_ENGINE "JSI" CACHE STRING "The JavaScript engine to power N-API")
-add_subdirectory(${REACTNATIVE_DIR}/ReactCommon/jsi/jsi ${CMAKE_CURRENT_BINARY_DIR}/jsi)
-target_include_directories(jsi INTERFACE ${REACTNATIVE_DIR}/ReactCommon/jsi)
+add_subdirectory(${REACTNATIVE_DIR_CMAKE}/ReactCommon/jsi/jsi ${CMAKE_CURRENT_BINARY_DIR}/jsi)
+target_include_directories(jsi INTERFACE ${REACTNATIVE_DIR_CMAKE}/ReactCommon/jsi)
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/src/")
 
@@ -45,10 +46,10 @@ set_target_properties(fbjni PROPERTIES
 # Define a minimal version of libturbomodulejsijni.so that includes CallInvokerHolder.cpp.
 # This is the only part of the TurboModule system we need for now. Eventually when TurboModule
 # support ships with React Native, we'll need to strip this back out.
-list(APPEND TURBOMODULE_INC_DIRS "${REACTNATIVE_DIR}/ReactCommon/callinvoker")
-list(APPEND TURBOMODULE_INC_DIRS "${REACTNATIVE_DIR}/ReactAndroid/src/main/java/com/facebook/react/turbomodule/core/jni")
+list(APPEND TURBOMODULE_INC_DIRS "${REACTNATIVE_DIR_CMAKE}/ReactCommon/callinvoker")
+list(APPEND TURBOMODULE_INC_DIRS "${REACTNATIVE_DIR_CMAKE}/ReactAndroid/src/main/java/com/facebook/react/turbomodule/core/jni")
 add_library(turbomodulejsijni SHARED
-    ${REACTNATIVE_DIR}/ReactAndroid/src/main/java/com/facebook/react/turbomodule/core/jni/ReactCommon/CallInvokerHolder.cpp)
+    ${REACTNATIVE_DIR_CMAKE}/ReactAndroid/src/main/java/com/facebook/react/turbomodule/core/jni/ReactCommon/CallInvokerHolder.cpp)
 target_include_directories(turbomodulejsijni PUBLIC "${TURBOMODULE_INC_DIRS}")
 target_link_libraries(turbomodulejsijni
     fbjni)