Remove -Wno-cast-function-type flag when compiling for Windows (not supported by msvc)

Author: touilleMan

src/godot/hazmat/meson.build

@@ -77,20 +77,23 @@ c_gdnative_ptrs = custom_target(
 
 if host_platform.startswith('linux')
     gdnative_ptrs_rpath = '$ORIGIN/../../../..'
+    # LoadedGDExtensionInterface's initialization code uses
+    # `pythonscript_gdextension_get_proc_address` which provide opaque function pointers,
+    # which we must then cast to the correct type before using them.
+    gdnative_ptrs_c_args = ['-Wno-cast-function-type']
 elif host_platform.startswith('macos')
     gdnative_ptrs_rpath = '@loader_path/../../../..'
+    gdnative_ptrs_c_args = ['-Wno-cast-function-type']
 else
     gdnative_ptrs_rpath = ''
+    gdnative_ptrs_c_args = []
 endif
 
 
 shared_library(
     'gdnative_ptrs',
     c_gdnative_ptrs,
-    # LoadedGDExtensionInterface's initialization code uses
-    # `pythonscript_gdextension_get_proc_address` which provide opaque function pointers,
-    # which we must then cast to the correct type before using them.
-    c_args: ['-Wno-cast-function-type'],
+    c_args: gdnative_ptrs_c_args,
     dependencies : [dep_godot, dep_python, dep_pythonscript],
     install_rpath: gdnative_ptrs_rpath,  # To find libpython
     name_prefix: python_native_module_name_prefix,