whisper : update CMakeLists.txt to handle deprecated gpu Warnings (#3163)

* Fix CMakeLists.txt to handle deprecated gpu Warnings

* Conditionally apply -Wno-deprecated-gpu-targets only when GGML_CUDA is enabled

* Conditionally apply -Wno-deprecated-gpu-targets only when GGML_CUDA is enabled and not MSVC

---------

Co-authored-by: Jugal Sheth <[email protected]>

CMakeLists.txt

@@ -119,6 +119,11 @@ whisper_option_depr(WARNING     WHISPER_SYCL                GGML_SYCL)
 whisper_option_depr(WARNING     WHISPER_SYCL_F16            GGML_SYCL_F16)
 whisper_option_depr(WARNING     WHISPER_CCACHE              GGML_CCACHE)
 
+if (GGML_CUDA AND NOT MSVC)
+    #GGML_CUDA enabled, add the necessary compile options -Wno-deprecated-gpu-targets
+    add_compile_options(-Wno-deprecated-gpu-targets)
+endif()
+
 #
 # build the library
 #