fix cmake

CMakeLists.txt

@@ -51,7 +51,17 @@ set_target_properties(argon PROPERTIES
 find_package(BDWgc REQUIRED)
 find_package(gmp REQUIRED)
 
-target_compile_options(argon PRIVATE -O3 -Wall -Wno-unused-function -s)
+target_compile_options(argon PRIVATE -O3 -Wall -s)
+if(MSVC)
+    # Disable warning C4061 (enum in switch not handled)
+    target_compile_options(argon PRIVATE /wd4061)
+
+    # Disable Spectre mitigation warning C5045
+    target_compile_options(argon PRIVATE /wd5045)
+
+    # Optionally, remove "treat warnings as errors" if enabled
+    # target_compile_options(argon PRIVATE /WX-)  # uncomment if you previously used /WX
+endif()
 if(NOT APPLE)
     target_link_options(argon PRIVATE -static)
 endif()