151 FTBFS packages on i386 without patch
bb_1.3rc1-13 
btfs_3.3-1 
cantor_4:26.04.0-3 
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_1.5.5-3 
ipfixprobe_5.8.0-1 
lmms_1.2.2+dfsg1-6#1048292 - lmms: Fails to build source after successful build
#1113238 - lmms: FTBFS with CMake 4
odr-dabmod_3.2.1+ds-1 
openturns_1.27.3-1 
rust-rootasrole_4.1.0-1 
rust-sed_0.3.0-1 
rust-tagptr_0.2.0-1 
vienna-rna_2.7.2+dfsg-1 
appstream-generator_1.0.0-1 
bazaar_0.9.4-2 
ccls_0.20261004-1 
g-golf_0.8.7-5 
go-jsonschema_0.24.1-1 
golang-github-a-h-templ_0.3.1001+ds-2 
golang-github-containerd-accelerated-container-image_1.4.3-2 
golang-github-d5-tengo_2.17.0-2 
golang-github-rootless-containers-bypass4netns_0.4.2-1 
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
python-rosettasciio_0.14.0-2 
rkcommon_1.15.2-2 
rust-apr-sys_0.2.4-2 
rust-bmap-rs_0.2.3-1 
rust-lamco-pipewire_0.8.1-1 
rust-loom_0.7.2-1 
rust-pracstro_1.1.1-1 
snowflake_2.10.1-2 
golang-github-awslabs-soci-snapshotter_0.4.1-6 
golang-github-tetratelabs-wazero_1.12.0-2 
jujutsu_0.46.0-2 
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
openmm_8.1.2+dfsg-12#1146865 - openmm: FTBFS on i386: 29 - TestReferenceLocalEnergyMinimizer (Failed)
prometheus-libvirt-exporter_0.2.0-2 
python-escript_6.1.1-2 
python-ocp_7.9.3.1+~cs7.9.3.1-2 
rocalution_5.7.1-3#1067956 - rocalution: FTBFS on armhf (test failure with memory allocation)
ruby-cool.io_1.10.1-1 
rust-blosc2-sys_0.4.0+dfsg-1 
rust-libmpv2-sys_4.0.1-1 
sch-rnd_1.0.12-1#1046531 - sch-rnd: Fails to build source after successful build
scotchpy_1.0.1-2 
signalbackup-tools_20250313.1-1 
udev-hid-bpf_2.3.0.20260703.4.gef5fbe3-1 
atuin_18.24.1+ds-1 
feenox_1.2-1 
fortran-julienne_4.1.2-1 
goxel_0.15.1-1#1143659 - goxel: FTBFS: src/palette.c:69:9: error: variable 'linen' set but not used [-Werror=unused-but-set-variable=]
ifcopenshell_0.8.1+dfsg1-10 
osmocom-analog_0.0~git20251206.0c72677-1 
python-primer3-py_2.3.1-1 
rust-aya-obj_0.2.1-6 
rust-cid-npm_0.0~git20200813.59cf068-2.1 
rust-clone-file_0.1.0-3 
rust-libdisplay-info-sys_0.3.0-2 
teakra_0.0~git20250117.4dfebf8-2 
abseil_20260526.0-2#1126886 - abseil fails two tests on riscv64
haskell-ram_0.19.0-1 
haskell-wide-word_0.1.8.1-1 
mdanalysis_2.10.0-4 
rust-compound-duration_1.2.1-1 
rust-guillotiere_0.7.0-1 
rust-pps-time_0.2.3-1 
rust-random-color_1.1.0-2 
stellarium_26.3-1 
arb_7.0+ds-1 
haunt_0.4.0-1 
oaknut_1.2.2+git20240301.94c726c-2 
ocaml-decimal_1.0.2-1 
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`
swt4-gtk_4.31.0-1#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 
debian-installer_20260628#806984 - debian-installer: ftbfs because d-i needs network to build…
#1068197 - debian-installer: accesses the internet during build
f3_10.0-1#1149660 - f3 FTBFS on 32-bit
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 
ott_0.34+ds-5 
p4est_2.3.6-3 
pybdsf_1.14.1-2#1152567 - pybdsf: FTBFS: Could NOT find Python (missing: Python_LIBRARIES Development
rust-perf-event-open-sys_6.0.0-1 
rust-samply_0.13.1-1 
bitshuffle_0.5.2-3 
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 
imath_3.2.3-2#1152719 - imath FTBFS on most architectures
python-pysam_0.24.1+ds-2 
quanty_0.9.0+ds-1 
rust-hyperfine_2.0.0-2 
rust-snphost_0.7.0-1 
s2geometry_0.14.0+git079611b-1 
abpoa_1.5.7-1 
bind-dyndb-ldap_13.0-1 
flye_2.9.6+dfsg-2 
libsonlib_1.1+git20220915.5cbc158+dfsg-1 
organicmaps_2026.09.29-32+ds-2 
coq-dpdgraph_1.0+9.1-2 
coq-equations_1.3.2-9.2-2#1044207 - coq-equations: Fails to build source after successful build
coq-hammer_1.3.3+9.2-2 
coq-reduction-effects_0.1.6-4 
coq-unicoq_1.6-9.1-4 
librpmalloc_2.0.1-1#1149775 - librpmalloc: portability improvements
rocq-micromega-plugin_1.1.1-2 
rocqnavi_0.5.1-2 
rust-dtact_0.2.8-1 
rust-kvm-ioctls_0.25.1-1 
gnote_51.0-1#1148857 - gnote: FTBFS on ppc64el: gnote_unit_tests killed by SIGABRT (not reproducible locally)
libmaus2_2.0.813+ds-6#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*)'
linksem_0.8+dfsg3-2 
ply-probe_2.4.0-1 
rust-cee-scape_0.2.0-1 
ufo-filters_0.17.0.76.g691aa0e+dfsg1-2#1113596 - ufo-filters: FTBFS with CMake 4
cpptraj_5.1.0+dfsg-5#1035833 - cpptraj: FTBFS on \!amd64
#1091156 - cpptraj: FTBFS on arm64: make[2]: *** [Makefile:662: summary] Error 4
ocaml-process_0.2.1-1 
pdfsandwich_0.1.7-3.1 
libultrahdr_2.0.2-1 
llvm-toolchain-19_1:19.1.7-22#1095866 - llvm-toolchain-19: unsoundness/miscompilations on i386
#1142869 - llvm-toolchain-19: FTBFS: fatal error: 'linux/scc.h' file not found
commons-daemon_1.6.1-1 
yt_4.4.2-1#1152672 - yt: FTBFS: unyt.exceptions.UnitConversionError: Cannot convert between 'code_length' (dim '(length)') and 'dimensionless' (dim '1')
dmrgpp_6.06-2#1096531 - dmrgpp: ftbfs with GCC-15
xemacs21_21.4.24-12#1075659 - xemacs21: ftbfs with GCC-14
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
coq-relation-algebra_1.7.11-1#1143295 - coq-relation-algebra: FTBFS: findlib error: coq-core.plugins.ltac not found in:
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)
libgee-0.8_0.20.8-2 
libomemo_0.8.1-3#1131332 - libomemo: FTBFS with mxml 4
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]'
ocaml-gavl_0.1.6-2#1047051 - ocaml-gavl: Fails to build source after successful build
#1127729 - ovaml-gavl: FTBFS with gavl_2.0.1
octave-video_2.1.3-3#1115036 - octave-video: FTBFS with ffmpeg 8.0
#1132464 - octave-video: prevents upgrade of octave and related packages
rust-sequoia-sop_0.37.3-2#1152059 - rust-sequoia-sop: FTBFS: error: failed to select a version for the requirement `sequoia-wot = "^0.14.0"`
schroot_1.6.13-8#1150310 - schroot: FTBFS: undefined reference to `boost::iostreams::file_descriptor::close()
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.
#1146238 - siconos: FTBFS with swig 4.5.0
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
vagrant_2.3.7+git20230731.5fc64cde+dfsg-4.1#1126086 - vagrant: FTBFS with Errors::BoxMetadataDownloadError
#1150361 - vagrant: FTBFS: raise Errors::BoxMetadataDownloadError,
lightningcss_1.33.0+ds-5 
8 FTBFS packages on i386 with a patch pending
bifrost_1.3.5-2#1150991 - bifrost FTBFS on 32bit architectures
epics-base_7.0.8.1+dfsg1-10#1079604 - epics-base:FTBFS:build failure (not support riscv64)
firefox_159.0-1#1035947 - fresh build from git fails with cannot access local variable 'new_file'
freehsm-c_2.0.0-1#1144631 - freehsm-c FTBFS on non-x86: cc1: error: ‘-fcf-protection=full’ is not supported for this target
#1149536 - freehsm-c: FTBFS on non-amd64 architectures
libgrokj2k_10.0.5-1#1085165 - libgrokj2k: FTBFS on armhf: ‘vreinterpret_f16_u16’ was not declared in this scope
openms_2.6.0+cleaned1-6#1148933 - openms: FTBFS with hdf5 2.2: ld: cannot find -lhdf5_cpp-shared
openvpn3-client_27.1+dfsg-2#1138369 - openvpn3-client: FTBFS with openssl 4.0
pyopencl_2025.1-2#1149461 - pyopencl: FTBFS: FAILED test_array.py::test_xdg_cache_home[>] - FileNotFoundError: [Errno 2] No such file or directory: 'tmpdir_pyopencl_xdg_test'