File list of package libecm1-dev in bullseye of architecture arm64
/usr/lib/aarch64-linux-gnu/libecm.a
/usr/lib/aarch64-linux-gnu/libecm.so
/usr/share/doc/libecm1-dev/AUTHORS
/usr/share/doc/libecm1-dev/NEWS.gz
/usr/share/doc/libecm1-dev/README.gz
/usr/share/doc/libecm1-dev/README.lib.gz
/usr/share/doc/libecm1-dev/changelog.Debian.gz
/usr/share/doc/libecm1-dev/changelog.gz
/usr/share/doc/libecm1-dev/copyright
/usr/share/doc/libecm1-dev/examples/Makefile
/usr/share/doc/libecm1-dev/examples/ecmfactor.c