C forbids braced-groups within expressions [-Wpedantic] 531 | ({ | ^ /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/support/loop.h:356:49: note: in expansion of macro 'spa_interface_call_res' 381 | spa_interface_call_res((struct spa_interface*)registry, | ^~~~~~~~~~~~~~~~~~~~~~ /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/support/loop.h:356:49: note: in expansion of macro 'spa_loop_utils_method_s' 356 | #define pw_core_error(c,...) pw_core_method(c,error,0,__VA_ARGS__) | ^~~~~~~~~~~~~~ /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/param/format-utils.h: In function 'spa_thread_utils_drop_rt': /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/utils/hook.h:199:1: warning: ISO C forbids