C forbids braced-groups within expressions [-Wpedantic] 5 | ({ | ^ /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/pod/parser.h:556:9: note: in expansion of macro 'pw_log' 174 | #define pw_log_warn(...) pw_log(SPA_LOG_LEVEL_WARN,__VA_ARGS__) | ^~~~~~ ../subprojects/cava-0.10.2/src/input/pipewire.c:30:9: note: in expansion of macro 'spa_callbacks_call_res' 127 | spa_callbacks_call_res(&builder->callbacks,