File list of package libgail-dev in bullseye of architecture arm64
/usr/include/gail-1.0/gail/gailwidget.h /usr/include/gail-1.0/libgail-util/gail-util.h /usr/include/gail-1.0/libgail-util/gailmisc.h /usr/include/gail-1.0/libgail-util/gailtextutil.h /usr/lib/aarch64-linux-gnu/libgailutil.so /usr/lib/aarch64-linux-gnu/pkgconfig/gail.pc /usr/share/doc/libgail-dev/changelog.Debian.gz /usr/share/doc/libgail-dev/copyright