282 FTBFS packages on riscv64 without patch
atlas-ecmwf_0.25.0-3 
burrow_1.2.1-2 
caml-crush_1.0.10-4#973153 - caml-crush: FTBFS: ocamlopt: OCaml has been configured with -force-safe-string: -unsafe-string is not available.
cfgrib_0.9.8.5-1 
condor_8.6.8~dfsg.1-2 
consul_1.8.7+dfsg1-2#982931 - consul FTBFS in some environments.
crowdsec_1.0.9-2 
docker-registry_2.7.1+ds2-7 
docker.io_20.10.5+dfsg1-1 
doomsday_2.2.2+ds1-1 
fairy-stockfish_11.1-1 
gauche-c-wrapper_0.6.1-12 
gauche-gtk_0.6+git20160927-3#981928 - gauche-gtk FTBFS: unknown define-cclass qualifier(s) (::base)
gitlab-ci-multi-runner_13.3.1+dfsg-4 
glewmx_1.13.0-4 
go-exploitdb_0.0~git20181130.7c961e7-1.1 
go-gir-generator_2.0.2-1 
golang-github-containers-buildah_1.19.6+dfsg1-1 
golang-github-containers-storage_1.24.8+dfsg1-1 
golang-github-mendersoftware-mender-artifact_3.4.0-1 
gost_0.1.0+git20181204.5afeda5e-1.1 
goval-dictionary_0.2.0-4 
gtkpod_2.1.5-8 
ipp-usb_0.9.17-3 
kmplayer_1:0.12.0b-3 
krita_1:4.4.2+dfsg-1 
ladish_1+dfsg0-6 
libecap_1.0.1-3.2 
libpod_3.0.1+dfsg1-3 
linuxinfo_3.3.2-1 
lua-lgi_0.9.2-2 
lwatch_0.6.2-1 
nomad-driver-lxc_0.3.0-1 
nomad-driver-podman_0.1.0-2 
notary_0.6.1~ds2-6 
nx-libs_2:3.5.99.26-2 
octave-level-set_0.3.1~git.2019.04.13-2 
open-invaders_0.3-5 
openmsx-debugger_0.1~git20200913-1 
pivy_0.6.5-1 
process-cpp_3.0.1-8 
prometheus-snmp-exporter_0.19.0+ds-1 
quantlib_1.21-1 
quickfix_1.15.1+dfsg-4 
ruby-grib_0.4.0-4 
rust-caps_0.3.3-1 
rust-jemalloc-sys_0.3.2-2 
rust-sniffglue_0.11.1-6 
singularity-container_3.5.2+ds1-1#964779 - singularity-container: FTBFS against golang-github-vbauerster-mpb-dev 5.0.3-2 (experimental)
#966993 - singularity-container: FTBFS
sipxtapi_3.3.0~test18+dfsg.1-0.1 
siridb-server_2.0.43-1#983768 - siridb-server ftbfs on riscv64
skopeo_1.2.2+dfsg1-1 
sonic-visualiser_4.2-1 
spaln_2.4.1+dfsg-3 
stdx-allocator_3.1.0~beta.2-3 
suricata_1:6.0.1-3 
sysdig_0.27.1-0.2 
terminews_1.2.2-1 
textql_2.0.3-3 
thinkfan_1.2.1-3 
vuls_0.6.1-3#964548 - vuls: FTBFS: cannot find package "golang.org/x/oauth2"
weex_2.8.3 
yabause_0.9.14-4 
yubiserver_0.6-3.1 
binutils-msp430_2.22~msp20120406-5.1 
biobambam2_2.0.179+ds-1 
bitseq_0.7.5+dfsg-5 
blender_2.83.5+dfsg-5 
boxbackup_0.13~~git20200326.g8e8b63c-1 
clonalorigin_1.0-4 
clutter-1.0_1.26.4+dfsg-2 
earlyoom_1.6.2-1 
elkcode_6.3.2-2 
ffcall_2.2-1#883044 - ffcall: FTBFS on m68k and sh4: timeout checking whether code in malloc()ed memory is executable
gretl_2021a-1 
hatari_2.3.1+dfsg-1 
hyperic-sigar_1.6.4+dfsg-4 
intercal_30:0.30-3 
librsl_1.43-1.2#893023 - librsl FTBFS with flex 2.6.4-6
libticables_1.3.5+dfsg-3 
libview_0.6.6-2.1#727446 - libview: run dh-autoreconf to update config.{sub,guess} and {libtool,aclocal}.m4
#744625 - libview: run dh-autoreconf to update config.{sub,guess} and {libtool,aclocal}.m4
#976498 - libview: FTBFS on arm64: configure: error: /bin/bash ./config.sub aarch64-linux-gnu failed
macaulay2_1.17.1+ds-2 
mender-client_2.4.1-2 
mixxx_2.2.4~dfsg-1 
muse_3.1.1-1 
netw-ib-ox-ag_5.39.0-1.4 
nwchem_7.0.2-1 
openmsx_17.0-1 
prads_0.3.3-6 
prometheus_2.24.1+ds-1 
smbc_1.2.2-4 
systemd-bootchart_234-1 
termshark_2.2.0-1 
uc-echo_1.12-15 
argyll_2.0.1+repack-2 
cgit_1.2.3+git2.25.1-1 
codeblocks_20.03-3 
ffcvt_1.6.1-1 
fizmo_0.7.10-2#877015 - fizmo FTBFS with debhelper 10.9
gcl_2.6.12-102 
gemma_0.98.4+dfsg-3 
gitbatch_0.5.0-3 
golang-github-appc-docker2aci_0.17.2+dfsg-2.1 
gridengine_8.1.9+dfsg-9.1 
gromacs_2020.6-2 
haskell-charsetdetect-ae_1.1.0.4-3 
iem-plugin-suite_1.11.1-1 
inventor_2.1.5-10-23.1 
kbuild_1:0.1.9998svn3489+dfsg-2 
kexec-tools_1:2.0.22-2 
libapp-stacktrace-perl_0.09-3 
libgdata_0.17.13-3 
micro_2.0.8-1 
psocksxx_1.1.1-1 
qtox_1.17.3-1 
ruby-ferret_0.11.8.7-2 
searchandrescue_1.5.0-2.1 
shoelaces_1.2.0+ds-1 
sia_1.3.0-1.1 
sidplay_2.0.9-6#727965 - sidplay: run dh-autoreconf to update config.{sub,guess} and {libtool,aclocal}.m4
#744508 - sidplay: run dh-autoreconf to update config.{sub,guess} and {libtool,aclocal}.m4
#976580 - sidplay: FTBFS on arm64: configure: error: /bin/bash unix/config.sub aarch64-linux-gnu failed
simgear_1:2020.3.6+dfsg-1 
snapd_2.49-1 
teem_1.12.0~20160122-4#880316 - teem: FTBFS: Test failures
telegram-desktop_2.6.1+ds-1 
tightvnc_1:1.3.10-3 
a2jmidid_9-2 
acbuild_0.4.0+dfsg-3 
commons-daemon_1.0.15-8 
go-cve-dictionary_0.3.1-4 
golang-github-cloudflare-cfssl_1.2.0+git20160825.89.7fb22c8-3.1 
golang-pault-go-ykpiv_1.3.4-2 
libbson-xs-perl_0.8.4-1 
llvmlite_0.35.0-3 
ncl_6.6.2-7#983253 - ncl: FTBFS with PROJ 8.0.0
purelibc_1.0.4-1 
pvm_3.4.6-3 
python-aiortc_0.9.28-3 
qtdeclarative-opensource-src_5.15.2+dfsg-6#929682 - libqt5qml5: QQmlEngine segfaults on ia64
seq24_0.9.3-2 
siconos_4.3.1+dfsg-2 
uvloop_0.14.0+ds1-2 
appstream-generator_0.8.4-1#966249 - appstream-generator FTBFS with gdc: error: undefined identifier ‘JSONType’
dmarc-cat_0.14.0-1 
gcc-m68hc1x_1:3.3.6+3.1+dfsg-3.1#536003 - (gcc-m68hc1x_1:3.3.6+3.1+dfsg-3/avr32): FTBFS: Outdated config.{sub,guess}
#982703 - gcc-m68hc1x: FTBFS: ../../src/gcc/config/m68hc11/larith.asm:108: Error: attempt to store non-zero value in section `.softregs'
golang-github-anacrolix-missinggo_2.1.0-6 
golang-github-coreos-discovery-etcd-io_2.0.0+git2019.04.19.git.78fb45d3c9-4 
golang-github-mattn-go-gtk_0.1+git20190405.4deadb4-1 
ion_3.2.1+dfsg-1.1#853456 - ion: ftbfs with GCC-7
kalign_1:3.3-1 
kytea_0.4.6+dfsg-2#799805 - kytea: Problem with upcoming new version of liblinear
#804356 - kytea: FTBFS: kytea-model.cpp:180:12: error: cannot convert 'int*' to 'double*' in assignment
libcds_2.3.3-2 
libsys-syscall-perl_0.25-6#824937 - libsys-syscall-perl: FTBFS on kfreebsd-*: test failures
memcached_1.6.9+dfsg-1 
mutextrace_0.1.4-1#743062 - mutextrace: sometimes FTBFS: testsuite races
#754606 - mutextrace: FTBFS on s390x: test failures
ogre-1.12_1.12.10+dfsg2-1.2 
prometheus-postfix-exporter_0.2.0-3 
rspamd_2.7-1 
ruby-ffi_1.12.2+dfsg-2#654531 - ruby-ffi: port this to more (debian, debian-ports) architectures (was Re: Accepted ruby-ffi 1.0.11debian-2 (source all amd64))
trinity_1.9+git20200331.4d2343bd18c7b-2 
vg_1.30.0+ds-1#976511 - vg: FTBFS on arm64: configure: error: Could not find a version of the library!
clickhouse_18.16.1+ds-7.2 
crash_7.2.9-2 
elisa-player_20.12.3-1 
fife_0.4.2-3 
flexpart_9.02-23 
gluegen2_2.3.2-8 
golang-github-docker-docker-credential-helpers_0.6.3-1 
pyfftw_0.12.0-1#917095 - python3-pyfftw: alignment tests fail on several arches
qiskit-aer_0.4.1-2 
scm_5f2-2#387087 - scm: make it work on s390
st_1.9-3.2 
tup_0.7.8-3 
bedops_2.4.39+dfsg1-2 
clippoly_0.11-10#976540 - clippoly: FTBFS on arm64,ppc64el: dh_auto_test: error: make -j4 check VERBOSE=1 returned exit code 2
diet-ng_1.5.0-1#944626 - diet-ng FTBFS on armhf: gdc: error: unrecognized command line option ‘-main’; did you mean ‘-Wmain’?
fscrypt_0.2.9-1 
golang-github-rubenv-sql-migrate_0.0~git20191213.0633851-2 
golang-github-vbatts-tar-split_0.11.1-2 
horizon-eda_1.4.0-1 
libuv1_1.40.0-2 
libvirt-sandbox_0.5.1+git20160404-1#939940 - libvirt-sandbox: missing python build-dependency causes FTBFS with gtk-doc-tools 1.32
llvm-toolchain-12_1:12.0.1-1 
lz4-java_1.5.1-3 
mame_0.230+dfsg.1-1#983507 - mame FTBFS on armel and mipsel: Cannot allocate memory (armel) / ar failure (mipsel)
mingw-w64_8.0.0-1 
openni_1.5.4.0+dfsg-4 
papi_6.0.0~dfsg-2 
perceptualdiff_2.1-4#982864 - perceptualdiff FTBFS with test failure on several architectures
ruby-gitlab-pg-query_1.3.1-2#981878 - ruby-gitlab-pg-query downloads from the internet during the build
secsipidx_1.1.1~git20210601.d388d64-1 
tty-share_2.2.0+ds-1 
ucspi-unix_1.0-1 
aerc_0.3.0-2 
golang-github-sylabs-sif_1.0.9-2.1 
libbiod_0.2.3+git20191120.b8eecef-2 
openjfx_11.0.11+0-1 
perftest_4.4+0.37-1#863158 - perftest FTBFS on mips*/armel/armhf: get_cycles not implemented for this architecture
pocl_1.6-5 
primus_0~20150328-13 
prometheus-libvirt-exporter_0.2.0-1 
rust-mach-o-sys_0.1.1-3#953285 - rust-mach-o-sys fails on architectures with unsigned char
#976484 - rust-mach-o-sys: unsigned values cannot be negated
rust-ring_0.16.9-4 
badger_2.2007.2-2 
deepin-boot-maker_5.6.5+dfsg-2 
elektra_0.8.14-5.1#844145 - elektra: FTBFS: kdberrors.h:489:0: error: invalid storage class for function 'elektraSetErrorf8'
#846200 - FTBFS: test_kdb failing: libelektra-resolver.so: cannot open shared object file: No such file or directory
#851592 - elektra: creates huge temporary file (100 GB) during build
#881676 - elektra: FTBFS with current cmake: A duplicate ELSE command was found inside an IF block.
#956949 - elektra build depends on cruft package swig3.0
godot_3.2.3-stable-1#978567 - src:godot: fails to migrate to testing for too long: FTBFS on mips64el
golang-github-bmatsuo-lmdb-go_1.8.0+git20170215.a14b5a3-2 
herbstluftwm_0.9.2-1 
libfm-qt_0.16.0-3 
openlibm_0.7.0+dfsg-2 
r-cran-ff_4.0.4+ds-1 
sphde_1.4.0-2 
golang-github-canonical-go-dqlite_1.8.0-1#981680 - golang-github-canonical-go-dqlite FTBFS: test failures
kodi_2:19.1+dfsg2-2 
lsp-plugins_1.1.29-1 
mongo-tools_3.4.14-4#935286 - mongo-tools: FTBFS on amd64
octave-tisean_0.2.3.hg.2019.08.26-1#874116 - octave-tisean FTBFS on !amd64: test failure
openstructure_2.2.0-6#976491 - openstructure: FTBFS on arm64: E: Build killed with signal TERM after 150 minutes of inactivity
patat_0.8.6.1-1 
rkt_1.30.0+dfsg1-9#835360 - rkt: FTBFS on several architectures
#964871 - rkt: FTBFS: make[2]: *** No rule to make target 'stage1/usr_from_coreoskvmhostsrcfly/usr_from_coreoskvmhostsrcfly.mk'. Stop.
rust-nodrop-union_0.1.9-1#952159 - rust-nodrop-union: FTBFS: dh_auto_test: error: /usr/share/cargo/bin/cargo build returned exit code 101
xtensor_0.22.0-5 
ctfutils_10.3~svn297264-2#791927 - Please support ARM64 (#error "ISA not supported")
haskell-ghc-lib-parser_8.10.2.20200808-1#967074 - haskell-ghc-lib-parser: FTBFS on arm{el,hf}: ghc: out of memory (requested 1048576 bytes)
#967075 - haskell-ghc-lib-parser: FTBFS on mips* and s390x: /usr/lib/ghc/include/stg/SMP.h:390:2: error: #error memory barriers unimplemented on this architecture
rust-kvm-ioctls_0.2.0-1 
kafs-client_0.5-2#976557 - kafs-client: FTBFS: cc: error: unrecognized command-line option ‘-m64’
pdfsandwich_0.1.7-2 
r-cran-s2_1.0.4-1#976473 - r-cran-s2: FTBFS: ../inst/include/s2/third_party/absl/base/internal/unaligned_access.h:289:8: error: ‘uint64’ does not name a type; did you mean ‘uint64_t’?
rust-file-diff_1.0.0-1#990382 - rust-file-diff FTBFS
sleef_3.5.1-1 
tiledb_1.7.7-1.1#981925 - tiledb FTBFS: test failures
xnnpack_0.0~git20201031.beca652+really.git20200323.1b35463-2 
bornagain_1.18.0-1 
paryfor_0.1-3 
tinyarray_1.2.3-2#976514 - tinyarray: FTBFS: dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p "3.8 3.9" --test-pytest --test-args=../../../test_tinyarray.py returned exit code 13
haskell-xml-html-qq_0.1.0.1-2#976469 - haskell-xml-html-qq: FTBFS: tests failed
libmaus2_2.0.768+dfsg-2#934619 - libmaus2 FTBFS (mostly 32bit): error: no matching function for call
neuron_7.6.3-1#889886 - neuron FTBFS on !x86/ppc: #error "This code has only been tested on x86 and powerpc platforms."
kcov_38+dfsg-1#964654 - kcov: FTBFS: ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libbfd.a(plugin.o): undefined reference to symbol 'dlclose@@GLIBC_2.2.5'
vowpal-wabbit_8.6.1.dfsg1-1#836450 - FTBFS: RunTests: test 5: FAILED: ref(train-sets/ref/0002a.stderr) != stderr(0002a.stderr)
#893031 - vowpal-wabbit: Baseline violation on i386 and FTBFS on !x86
dballe_8.6-1#957123 - dballe: ftbfs with GCC-10
openmm_7.5.0+dfsg-1 
blastem_0.6.3.3-3#976494 - blastem: FTBFS on arm64: z80_to_x86.c:634:21: error: invalid operands to binary - (have ‘code_ptr’ {aka ‘unsigned int *’} and ‘uint8_t *’ {aka ‘unsigned char *’})
lizardfs_3.12.0+dfsg-4 
dbcsr_2.1.0-1#981831 - dbcsr FTBFS: dbcsr_perf:inputs/test_square_sparse_rma.perf (Failed)
gnome-shell-xrdesktop_3.36.1-2 
traildb_0.6+dfsg1-1#862919 - traildb: FTBFS on non-x86: emmintrin.h absent
#862920 - traildb: FTBFS (32-bit): __uint128_t not defined
graftcp_0.3.1+ds1-1 
mes_0.22-5 
mpqc3_0.0~git20170114-4.1#946452 - mpqc3: FTBFS in sid
myodbc_5.1.10-3#841561 - myodbc: FTBFS: stringutil.c:71:29: error: too few arguments to function 'my_malloc'
vdr-plugin-remoteosd_1.0.0-5#872495 - vdr-plugin-remoteosd FTBFS with vdr 2.3.8
cduce_0.6.0-5#878983 - cduce FTBFS with OCaml 4.05.0
massivethreads_1.00-1 
matita_0.99.3-1#913606 - matita FTBFS with lablgtk2 2.18.5+dfsg-2
python-enable_4.8.1-1#951888 - python-enable FTBFS with swig 4.0.1
#972023 - python-enable ftbfs with python3.9 as supported python3 version
rust-generator_0.6.20-2#976584 - rust-generator: FTBFS: dh_auto_test: error: /usr/share/cargo/bin/cargo test --all returned exit code 101
rust-libnotcurses-sys_2.1.8-1 
vdr-plugin-softhddevice_0.6.0+git20160108-3#888331 - vdr-plugin-softhddevice: FTBFS with FFmpeg 4.0
aac-tactics_8.11.0-1#970454 - aac-tactics: FTBFS in sid
cernlib_20061220+dfsg3-4.4#957080 - cernlib: ftbfs with GCC-10
debiman_0.0~git20200217.fc82521-1#983010 - mdocml breaks debiman autopkgtest: different output
flannel_0.9.1~ds1-1#880914 - flannel FTBFS with golang-github-vishvananda-netlink-dev 0.0~git20170407.0.1e86b2b-1
freeture_1.3.0-1#922579 - FTBFS against opencv 4.0.1 (exp)
galax_1.1-16#972259 - FTBFS with OCaml 4.11.1 (-unsafe-string is not available)
haskell-easytest_0.2.1-2#963072 - haskell-easytest: Does not build with hedgehog 1.x
haskell-gitlib_3.1.2-3#963748 - haskell-gitlib: FTBFS with ghc-8.8
libgtk2-perl_2:1.24993-1#942135 - libgtk2-perl: FTBFS with gdk-pixbuf 2.39+ and not built against perl 5.30
#942365 - libgtk2-perl: Package uninstallable
#949013 - Upgrade of Perl stymied by a dependency issue
#959394 - perlapi-5.28.1: Package Won't Install
limereg_1.4.1-4#922584 - FTBFS against opencv 4.0.1 (exp)
mclibs_20061220+dfsg3-3.1#776567 - mclibs: FTBFS - segfault in testsuite
meliae_0.5.1+bzr231-3#972011 - meliae's autopkg tests fail, and package ftbfs with python3.9
mldonkey_3.1.7-2#972211 - FTBFS with OCaml 4.11.1 (-unsafe-string is not available)
mod-gearman_1.5.5-1#957557 - mod-gearman: ftbfs with GCC-10
morse-simulator_1.4-6#963651 - morse-simulator: FTBFS with Sphinx 3.1: Theme error: An error happened in rendering the page morse.
ocaml-melt_1.4.0-3#972261 - FTBFS with OCaml 4.11.1 (-unsafe-string is not available)
ocaml-reins_0.1a-9#971176 - ocaml-reins: FTBFS: File config.omake: line 9, characters 10-29 unbound variable: this.OCAMLDEP_MODULES
python-hug_2.6.0-2 
python-thinc_6.12.1-1#947111 - python-thinc: FTBFS with Python 3.8
qdjango_0.6.2-3.1#980267 - qdjango: FTBFS on buildds
undertaker_1.6.1-4.2#938754 - undertaker: Python2 removal in sid/bullseye
#966796 - undertaker: Unversioned Python removal in sid/bullseye
vdr-plugin-infosatepg_0.0.12-6#872487 - vdr-plugin-infosatepg FTBFS with vdr 2.3.8
haskell-dpkg_0.0.3-12#880879 - haskell-dpkg FTBFS: hlibrary.setup: parsing output of pkg-config --modversion failed
19 FTBFS packages on riscv64 with a patch pending
ensmallen_2.17.0-1#990927 - ensmallen FTBFS: test not run
hidrd_0.2.0-12#853443 - hidrd: ftbfs with GCC-7
libatomic-ops_7.6.10-1#962917 - libatomic-ops: FTBFS in the testsuite on riscv64 due to missing -pthread
libcreg_20200725-1#978460 - libcreg: memory tests fundamentally broken, please disable them on riscv64
libfsapfs_20201107-1#978463 - libfsapfs: memory tests fundamentally broken, please disable them on riscv64
libfsext_20201107-1#978464 - libfsext: memory tests fundamentally broken, please disable them on riscv64
libfshfs_20201104-1#978465 - libfshfs: memory tests fundamentally broken, please disable them on riscv64
libfsxfs_20201117-1#978467 - libfsxfs: memory tests fundamentally broken, please disable them on riscv64
libhdf4_4.2.15-3#978099 - Please add support for riscv64
libluksde_20200205-1#978468 - libluksde: memory tests fundamentally broken, please disable them on riscv64
mariadb-connector-odbc_3.1.9-1#942412 - Does not build on platform other than i386/amd64
micropython_1.14+ds-1#988267 - micropython ftbfs on at least arm64 where it built before
mojoshader_0.0~hg1314+dfsg-1.1#976553 - mojoshader: FTBFS on architectures with unsigned char: segfaults
#991343 - mojoshader: FTBFS if libsdl2-dev is installed
nss_2:3.68-1#979159 - nss: pkg build fails on m68k due to insufficient LD_LIBRARY_PATH
openturns_1.14-1#790327 - openturns: FTBFS on mipsel "package requires more than 1GB RAM; do not build on mips/mipsel. Stop."
sofia-sip_1.12.11+20110422.1-2.1#978498 - FTBFS on riscv64: machine `riscv64' not recognized
srg_1.3.6-2#912072 - srg: FTBFS with GCC 8
uhub_0.4.1-3.1#770175 - uhub: FTBFS on arm64
xfsprogs_5.10.0-4#987093 - xfsprogs: need config.guess/sub update for riscv64