a custom command (wrapped by meson to capture output, to feed input) [188/229] Compiling C++ object waybar.p/src_modules_upower.cpp.o [142/229] Compiling C++ object waybar.p/src_util_pipewire_pipewire_backend.cpp.o [139/229] Compiling C++ object waybar.p/src_modules_sway_window.cpp.o [121/229] Compiling C++ object test/waybar_test.p/.._src_config.cpp.o [76/229] Compiling C++ object waybar.p/src_modules_sway_scratchpad.cpp.o [123/229] Compiling C++ object waybar.p/src_modules_mpris_mpris.cpp.o [149/229] Compiling C++ object waybar.p/src_modules_cpu_usage_common.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 does not