C forbids braced-groups within expressions [-Wpedantic] 199 | ({ | ^ /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/pod/builder.h:210:9: note: in expansion of macro 'spa_callbacks_call' 230 | spa_callbacks_call(&(iface)->cb,method_type,method,vers,##__VA_ARGS__) | ^~~~~~~~~~~~~~~~~~ [60/229] Compiling C object protocol/libclient_protos.a.p/meson-generated_river-status-unstable-v1-protocol.c.o [52/229] Compiling C object protocol/libclient_protos.a.p/meson-generated_dwl-ipc-unstable-v2-protocol.c.o [56/229] Compiling C object subprojects/cava-0.10.2/libcava.so.p/src_output_raw.c.o