C forbids braced-groups within expressions [-Wpedantic] 166 | ({ | ^ /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/utils/hook.h:243:9: note: in expansion of macro 'pw_log' 174 | #define pw_loop_add_signal(l,...) spa_loop_utils_add_signal((l)->utils,__VA_ARGS__) | ^~~~~~~~~~~~~~~~~~~~~~~~~ /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/param/audio/iec958-utils.h:26:15: note: in expansion of macro 'spa_interface_call_res' 101 | spa_interface_call_res(&o->iface,