C forbids braced-groups within expressions [-Wpedantic] 199 | ({ | ^ ../subprojects/cava-0.10.2/src/output/common.c:35:29: note: in expansion of macro 'spa_interface_call_res' 113 | spa_interface_call_res(&o->iface, | ^~~~~~~~~~~~~~~~~~~~~~ /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/support/loop.h:341:9: note: in expansion of macro 'spa_pod_builder_add_object' 100 | return pw_core_error(core, id, seq, res, buffer); | ^~~~~~~~~~~~~ In file included from /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/pod/builder.h:23, from /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/param/audio/format-utils.h:13: /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/pod/builder.h: