File list of package libfcgi-dev in buster of architecture arm64
/usr/include/fastcgi.h /usr/include/fcgi_config.h /usr/include/fcgi_stdio.h /usr/include/fcgiapp.h /usr/include/fcgimisc.h /usr/include/fcgio.h /usr/include/fcgios.h /usr/lib/aarch64-linux-gnu/libfcgi++.a /usr/lib/aarch64-linux-gnu/libfcgi++.so /usr/lib/aarch64-linux-gnu/libfcgi.a /usr/lib/aarch64-linux-gnu/libfcgi.so /usr/share/doc/libfcgi-dev/changelog.Debian.gz /usr/share/doc/libfcgi-dev/copyright