with a custom command (wrapped by meson to capture output, to feed input) [219/229] Linking target subprojects/cava-0.10.2/libcava.so [63/229] Generating symbol file subprojects/cava-0.10.2/libcava.so.p/libcava.so.symbols [64/229] Compiling C++ object waybar.p/src_modules_cpu.cpp.o [97/229] Compiling C++ object waybar.p/src_factory.cpp.o In file included from /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/pipewire-0.3/pipewire/loop.h:12, from /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/pipewire-0.3/pipewire/context.h:49: /nix/store/jd6h07kk8y8pxlha2gisrzfifpscm5kq-pipewire-1.2.7-dev/include/spa-0.2/spa/support/loop.h:338:1: warning: ISO C