Don't use $<CONFIG> in runtime output dir

Setting `CMAKE_RUNTIME_OUTPUT_DIRECTORY` to
`${CMAKE_BINARY_DIR}/bin/$<CONFIG>` breaks intel/llvm on Windows when
using `ur_loader.dll` because the loader library does not exist beside
`sycl8.dll` or the various `.exe` tools which depend on it.

Author: kbenzie

CMakeLists.txt

@@ -76,16 +76,13 @@ include(Assertions)
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
-if(MSVC)
-    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin/$<CONFIG>)
-endif()
 
 # Define rpath for libraries so that adapters can be found automatically
 set(CMAKE_BUILD_RPATH "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
 
 # Define a path for custom commands to work around MSVC
 set(CUSTOM_COMMAND_BINARY_DIR ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
-if(MSVC)
+if(CMAKE_SYSTEM_NAME STREQUAL Windows AND NOT CMAKE_GENERATOR STREQUAL Ninja)
     # MSVC implicitly adds $<CONFIG> to the output path
     set(CUSTOM_COMMAND_BINARY_DIR ${CUSTOM_COMMAND_BINARY_DIR}/$<CONFIG>)
 endif()