147 FTBFS packages on i386 without patch
bb_1.3rc1-13 
btfs_3.1-1 
cantor_4:26.04.0-3 
cpu-x_5.4.0-2 
dpaste_0.4.0-1#1044272 - dpaste: Fails to build source after successful build
fp-units-win_3.2.2+dfsg-46#1105331 - fp-units-win: FTBFS with make --shuffle=reverse: make[1]: *** fpcsrc/rtl: No such file or directory. Stop.
genomicsdb_1.5.5-2#1092841 - genomicsdb: FTBFS with fmtlib 11.1
lmms_1.2.2+dfsg1-6#1048292 - lmms: Fails to build source after successful build
#1113238 - lmms: FTBFS with CMake 4
nbd_1:3.27.1-2#1080401 - "make check" is flaky, regularly FTBFS
#1137047 - nbd: FTBFS in bookworm
openturns_1.27.1-2 
rust-bmap-rs_0.2.2-1 
rust-lamco-pipewire_0.4.0-1 
vienna-rna_2.7.0+dfsg-2 
g-golf_0.8.7-5 
golang-github-awslabs-soci-snapshotter_0.4.1-6 
golang-github-containerd-accelerated-container-image_1.4.2-3 
haskell-zip_2.2.1-2 
hepmc3_3.1.2-2.1#1049185 - hepmc3: Fails to build source after successful build
#1064556 - hepmc3: FTBFS on i386: 86% tests passed, 2 tests failed out of 14
#1112989 - hepmc3: FTBFS with CMake 4
odr-dabmod_3.2.0+ds-1 
rust-apr-sys_0.2.1-1 
rust-pracstro_1.1.1-1 
rust-tagptr_0.2.0-1 
wcslib_8.9+ds-1 
appstream-generator_0.10.2-1 
bazaar_0.9.1-1 
ccls_0.20250815.1-1#1068055 - ccls: FTBFS on armel (undefined reference to symbol '__atomic_load_8@@LIBATOMIC_1.0')
#1068056 - ccls: FTBFS on armhf,i386 (test_response failures)
clipper2_2.0.1-2 
cyrus-imapd_3.12.3-1#1044140 - cyrus-imapd: Fails to build source after successful build
#1049814 - cyrus-imapd: Fails to build binary packages again after successful build
#1142273 - Reenable i386 arch generate FTBFS
debian-installer_20260628#806984 - debian-installer: ftbfs because d-i needs network to build…
#1068197 - debian-installer: accesses the internet during build
ensmallen_3.11.0-1 
megaglest_3.13.0-10.1#1116296 - megaglest: FTBFS on i386: killed with signal TERM after 150 minutes of inactivity
mgmt_0.0.26.git.2024.10.25.85e1d6c0e8-4#1131816 - mgmt: FTBFS: undefined: types.ImageSearchOptions
mysql-9.7_9.7.1-1 
rocalution_5.7.1-3#1067956 - rocalution: FTBFS on armhf (test failure with memory allocation)
rust-aya-obj_0.2.1-6 
rust-blosc2-sys_0.4.0+dfsg-1 
sch-rnd_1.0.10-1#1046531 - sch-rnd: Fails to build source after successful build
signalbackup-tools_20250313.1-1 
synfig_1.5.3+dfsg-1 
udev-hid-bpf_2.3.0.20260703.4.gef5fbe3-1 
feenox_1.2-1 
fortran-julienne_4.1.0-1 
golang-github-rootless-containers-bypass4netns_0.4.2-1 
goxel_0.15.1-1 
ifcopenshell_0.8.1+dfsg1-5#1140255 - ifcopenshell: FTBFS: /usr/include/c++/15/bits/stl_function.h:408:20: error: use of deleted function 'auto CGAL::Wrap::operator<(const Point_d > >&, const Point_d > >&)'
jujutsu_0.43.0-2 
osmocom-analog_0.0~git20250208.4ebf64f-1 
python-ocp_7.9.3.1+~cs7.9.3.1-1 
rust-cid-npm_0.0~git20200813.59cf068-2 
rust-clone-file_0.1.0-3 
scotchpy_1.0.1-2 
sonic-visualiser_5.2.1-2#1131336 - sonic-visualiser: FTBFS with Qt 6.10
teakra_0.0~git20250117.4dfebf8-2 
haskell-wide-word_0.1.8.1-1 
ipfixprobe_5.7.0-3 
macs_3.0.4-1 
rust-compound-duration_1.2.1-1 
rust-libdisplay-info-sys_0.3.0-1 
rust-pps-time_0.2.3-1 
rust-static-alloc_0.2.5-2 
gnote_50.1-1 
go-jsonschema_0.23.1-2 
golang-github-a-h-templ_0.3.1001+ds-2 
haunt_0.3.0-1 
kdiskmark_3.3.0+ds-1#1140620 - kdiskmark FTBFS on 32-bit
lomiri-location-service_3.4.1-2 
oaknut_1.2.2+git20240301.94c726c-2 
ocaml-decimal_1.0.2-1 
prometheus-libvirt-exporter_0.2.0-2 
ruby-cbor_0.5.10.3-1 
rust-libsensors-sys_0.2.0-1#1114359 - rust-libsensors-sys: FTBFS: error: test failed, to rerun pass `--lib`
rust-perf-event-open-sys_6.0.0-1 
sccache_0.16.0+ds-1#1048427 - sccache: Fails to build source after successful build
#1138282 - sccache FTBFS: Unknown cache level: 'redis'
swt4-gtk_4.30.0-1#960769 - swt4-gtk FTBFS on 32bit
#1074011 - 32 bit package is missing in stable (bookworm) and testing (trixie)
#1074012 - 32 bit package is missing in stable (bookworm) and testing (trixie)
wmbusmeters_2.0.0-2 
bbhash_1.0.0-7#1049876 - bbhash: FTBFS on 32 bit architectures
libmath-int128-perl_0.22-5#1066062 - libmath-int128-perl: FTBFS on i386 "your compiler doesn't support a 128-bit integer type"
libstrato_1.0.19+dfsg-1 
openvpn3-client_27.1+dfsg-1 
p4est_2.3.6-3#1133601 - p4est: ftbfs with GCC-16
snowflake_2.10.1-2 
bifrost_1.3.5-2 
bustools_0.45.1+dfsg-2 
gjh-asl-json_0.0+git20210628.867c5da-1 
guile-hoot_0.9.0-4 
haskell-arithmoi_0.13.2.0-2 
haskell-ram_0.19.0-1 
python-cx-oracle_8.3.0-3#1137169 - python-cx-oracle FTBFS: error: implicit declaration of function ‘dpiConn_beginDistribTrans’
flye_2.9.6+dfsg-2 
golang-github-d5-tengo_2.17.0-2 
golang-github-tetratelabs-wazero_1.12.0-1 
prjxray_0.1+git3356.gc9f02d85+~db20211214.g0a0added-2 
rust-kvm-ioctls_0.22.1-1 
dump_0.4b55-1 
linksem_0.8+dfsg3-2 
openfoam_1912.200626-3#1097519 - openfoam: ftbfs with GCC-15
organicmaps_2026.03.12-05+ds-1 
ply-probe_2.4.0-1 
rust-cee-scape_0.2.0-1 
cpptraj_5.1.0+dfsg-5#1035833 - cpptraj: FTBFS on \!amd64
#1091156 - cpptraj: FTBFS on arm64: make[2]: *** [Makefile:662: summary] Error 4
herdtools7_7.58-1 
pdfsandwich_0.1.7-3.1 
pplacer_1.1~alpha19-8#1074546 - FTBFS with OCaml 5.2.0 (Uses C functions without caml_ prefix)
#1093109 - pplacer: FTBFS with OCaml 5.3.0 (error in C stubs)
abpoa_1.5.6-1 
libmaus2_2.0.813+ds-5#934619 - libmaus2 FTBFS (mostly 32bit): error: no matching function for call
#1069691 - libmaus2: FTBFS on arm64: what(): AutoArray failed to allocate 1398102 elements (11184816 bytes)
#1091144 - libmaus2: ftbfs on arm64 prevents building biobambam2
#1091568 - libmaus2: FTBFS on i386: ld: ./.libs/libmaus2.so: undefined reference to `libmaus2::posix::PosixFunctions::fstatSizeAndMode(int, long long&, unsigned char*)'
ocaml-process_0.2.1-1 
tinyarray_1.2.5-1#1017051 - tinyarray: FTBFS on i386
pyemd_0.5.1.54.g802fa86-2#1080277 - FTBFS with setuptools >= 72: error: invalid command 'test'
rust-generator_0.7.1-1.1#1003070 - rust-generator should not claim to build on "any" as upstream only supports amd64/arm64
cypari2_2.1.4-1#1081687 - Times out building on arm64
coq-simple-io_1.11.0-1#1139503 - coq-simple-io: FTBFS: Error: Can't find file coqsimpleio_plugin.cmxs on loadpath.
selinux-python_3.11-1#1141881 - selinux-python FTBFS: /usr/bin/python3: No module named build
xemacs21_21.4.24-12#1075659 - xemacs21: ftbfs with GCC-14
aflplusplus_4.33c-1.1#1132061 - aflplusplus: ftbfs with GCC-16
#1141089 - aflplusplus: FTBFS: Build killed with signal TERM after 150 minutes of inactivity
aj-snapshot_0.9.9-4#1093685 - aj-snapshot: FTBFS with mxml 4.0.3
anytun_0.3.8-1.1#1127165 - anytun: libboost-system-dev package is obsolete with boost 1.89 and newer
breezy_3.3.22-1#1043708 - breezy: Fails to build source after successful build
#1139501 - breezy: FTBFS: build timeouts
broker_1.4.0+ds1-1#1037597 - broker: ftbfs with GCC-13
#1112758 - broker: FTBFS with CMake 4
debian-codemods_0.182#1142066 - debian-codemodes: FTBFS: error: test failed, to rerun pass `-p lintian-brush --lib`
elpi_2.0.7-3#1131646 - elpi: FTBFS: Error: The value valid_category has type (string -> [> `Error of string | `Ok of string ]) * string printer but an expression was expected of type 'a conv
frama-c_20220511-manganese-5#1044539 - frama-c: Fails to build source after successful build
#1093102 - frama-c: FTBFS with OCaml 5.3.0 (syntax error due to new "effect" keyword)
gnucap-python_0.0.2-1.2#1067335 - gnucap-python: FTBFS: _gnucap_swig.cxx:4535:10: fatal error: numpy/arrayobject.h: No such file or directory
gpyfft_0.7.1-3#1120241 - gpyfft: FTBFS: AttributeError: module 'gpyfft.gpyfftlib' has no attribute 'CLFFT_DOUBLE'
gtsam_4.2.0+dfsg-6#1136237 - gtsam: FTBFS with libeigen3-dev 5.0 (major version transition)
#1136918 - gtsam: FTBFS: TypeError: setInlierCostThresholds(): incompatible function arguments.
libhdate_1.6.02-2.1#1045497 - libhdate: Fails to build source after successful build
#1102875 - libhdate: add perl-xs-dev to Build-Depends
libomemo_0.8.1-3#1131332 - libomemo: FTBFS with mxml 4
libpreludedb_5.2.0-2.2#1047160 - libpreludedb: Fails to build source after successful build
#1049794 - libpreludedb: Fails to build binary packages again after successful build
#1080884 - libpreludedb: Missing Build-Depends on python3-setuptools
libpwiz_3.0.18342-4.2#1110624 - libpwiz ftbfs with boost 1.88
#1127228 - libpwiz: libboost-system-dev package is obsolete with boost 1.89 and newer
libvirt-php_0.5.8-7#1106642 - libvirt-php ftbfs with libxml 2.14.x from experimental
linphone_5.3.105-6#1119745 - linphone: FTBFS: /<>/src/db/main-db.cpp:1530:58: error: use of deleted function 'soci::details::use_container soci::use(T&&, const std::string&) [with T = long long int; std::string = std::__cxx11::basic_string]'
openstructure_2.11.1-3#976491 - openstructure: FTBFS on arm64: E: Build killed with signal TERM after 150 minutes of inactivity
#1129279 - openstructure: FTBFS with Python 3.14: tests segfault
python-cython-blis_1.0.0-2#1097676 - python-cython-blis: ftbfs with GCC-15
python-escript_5.6-10 
python-lua_1.0-1#1114309 - python-lua: FTBFS: module.h:94:13: error: 'bool' cannot be defined via 'typedef'
python-nss_1.0.1-2#1045451 - python-nss: Fails to build source after successful build
#1080757 - python-nss: Missing Build-Depends on python3-setuptools
s2geometry_0.10.0-6.1#1059228 - build system hard-codes -std=c++11
scram_0.16.2-4#1129858 - scram: FTBFS with boost 1.90
sdml_0.3.2+20250310-7#1140282 - sdml: FTBFS: error: failed to select a version for the requirement `tree-sitter = "^0.25"`
siconos_4.4.0+dfsg-6#1020544 - siconos: FTBFS on s390x: Cholesky solve kNM_test failed
#1046177 - siconos: Fails to build source after successful build
#1136873 - siconos: FTBFS: E ValueError: setting an array element with a sequence.
simgrid_4.1-2#1140533 - simgrid FTBFS with ns3 3.48
solarpowerlog_0.26-1#1110665 - solarpowerlog ftbfs with boost 1.88
#1127284 - solarpowerlog: libboost-system-dev package is obsolete with boost 1.89 and newer
stdgpu_1.3.0+git20220507.32e0517-6#1119033 - stdgpu: FTBFS with libamdhip64-dev 6.4.3
swift-im_5.0~alpha2.145.g12d031cf8+dfsg-5#1127287 - swift-im: libboost-system-dev package is obsolete with boost 1.89 and newer
tiledarray_1.0.0-1#1087560 - tiledarray: FTBFS: missing cstdint include
tulip_6.0.1+dfsg-3#793137 - tulip: FTBFS on armel and armhf
#1127042 - tulip: FTBFS with Python 3.14
vera++_1.3.0-3#1140903 - vera++: FTBFS with Python 3.14
xpra_3.1.5+dfsg1-0.2#1067627 - FTBFS: error: comparison of integer expressions of different signedness: ‘long unsigned int’ and ‘long int’
#1072463 - xpra: FTBFS with ffmpeg 7.0: xpra/codecs/enc_ffmpeg/encoder.c:11208:115: error: passing argument 6 of ‘avio_alloc_context’ from incompatible pointer type [-Werror=incompatible-pointer-types]
6 FTBFS packages on i386 with a patch pending
blender_4.3.2+dfsg-2#1101474 - blender: FTBFS: Please add loongarch64 support
epics-base_7.0.8.1+dfsg1-10#1079604 - epics-base:FTBFS:build failure (not support riscv64)
libprelude_5.2.0-5.6#1081473 - FTBFS with Python 3.13
mumble_1.5.857-1#1138349 - mumble: FTBFS with openssl 4.0
openafs_1.8.16~pre1-1#926321 - openafs: FTBFS on arm64
valentina_1.1.0+dfsg-1#1122981 - FTBFS: valentina fails to build on riscv64 with GCC 15.2