Silence ignore attributes warnings in templates

For the 32-bit host.

meson.build

@@ -107,7 +107,14 @@ if get_option('use-bitbridge')
     native : false,
     include_directories : include_dir,
     dependencies : [boost_dep, bitsery_dep, wine_threads_dep, xcb_dep],
-    cpp_args : compiler_options + ['-m32'],
+    # FIXME: 32-bit winegcc defines `__stdcall` differently than the 64-bit
+    #        version, and one of the changes is the inclusion of
+    #        `__atribute__((__force_align_arg_pointer__))`. For whetever reason
+    #        this causes GCC to complain when using function pointers with the
+    #        `__stdcall` calling convention in template arguments, although it
+    #        otherwise works just fine. We don't ignore any warnings in the
+    #        regular host application so this should not cause any issues!
+    cpp_args : compiler_options + ['-m32', '-Wno-ignored-attributes'],
     link_args : ['-m32']
   )
 endif