chore: force build_shared_libs if directml was set

CMakeLists.txt

@@ -95,6 +95,19 @@ to install CUDA toolkit if you have not installed it.")
   endif()
 endif()
 
+if(SHERPA_ONNX_ENABLE_DIRECTML)
+  message(WARNING "\
+Compiling with DirectML enabled. Please make sure Windows 10 SDK
+is installed on your system. Otherwise, you will get errors at runtime.
+Please refer to
+  https://onnxruntime.ai/docs/execution-providers/DirectML-ExecutionProvider.html#requirements
+to install Windows 10 SDK if you have not installed it.")
+  if(NOT BUILD_SHARED_LIBS)
+    message(STATUS "Set BUILD_SHARED_LIBS to ON since SHERPA_ONNX_ENABLE_DIRECTML is ON")
+    set(BUILD_SHARED_LIBS ON CACHE BOOL "" FORCE)
+  endif()
+endif()
+
 # see https://cmake.org/cmake/help/latest/prop_tgt/MSVC_RUNTIME_LIBRARY.html
 # https://stackoverflow.com/questions/14172856/compile-with-mt-instead-of-md-using-cmake
 if(MSVC)