138 FTBFS packages on i386 without patch
bb_1.3rc1-13 
btfs_3.1-1 
cantor_4:25.04.2-3 
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_1.5.5-1#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
mwrap_1.2.1-2 
odr-dabmod_3.0.0+ds-1#1097500 - odr-dabmod: ftbfs with GCC-15
openjdk-11-jre-dcevm_11.0.15+1-1 
uftrace_0.18-1#1105724 - uftrace: FTBFS with make --shuffle=random: mcount.c:33:10: fatal error: version.h: No such file or directory
vienna-rna_2.6.4+dfsg-1#1114434 - vienna-rna: FTBFS: subopt.c:618:28: error: passing argument 2 of 'lst_kill' from incompatible pointer type [-Wincompatible-pointer-types]
dpaste_0.4.0-1#1044272 - dpaste: Fails to build source after successful build
#1082991 - dpaste: FTBFS: /usr/include/curlpp/Options.hpp:281:74: error: invalid conversion from ‘int’ to ‘CURLoption’ [-fpermissive]
g-golf_0.8.2-1 
haskell-zip_2.0.1-2 
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
ippsample_0.0~git20220607.72f89b3-1#1046955 - ippsample: Fails to build source after successful build
casparcg-server_2.3.3+dfsg-3.2#1077504 - casparcg-server FTBFS with ffmpeg 7
#1112604 - casparcg-server: FTBFS with SFML 3.0
#1113666 - casparcg-server: FTBFS with CMake 4
golang-github-awslabs-soci-snapshotter_0.4.1-5 
jeolib-miallib_1.1.6-2 
mgmt_0.0.26.git.2024.10.25.85e1d6c0e8-4 
osmocom-analog_0.0~git20250208.4ebf64f-1 
sch-rnd_1.0.9-2 
signalbackup-tools_20250313.1-1 
teakra_0.0~git20250117.4dfebf8-2 
ccls_0.20241108-1#1068055 - ccls: FTBFS on armel (undefined reference to symbol '__atomic_load_8@@LIBATOMIC_1.0')
#1068056 - ccls: FTBFS on armhf,i386 (test_response failures)
dtkdeclarative_5.7.12-1 
golang-github-rootless-containers-bypass4netns_0.4.2-1 
lfortran_0.48.0-2#1113103 - lfortran: FTBFS with CMake 4
receptor_1.5.5-2#1109561 - receptor: flaky autopkgtest: panic: Fail in goroutine after TestTCPProxyServiceOutbound has completed
rocm-compilersupport_6.0+git20231212.4510c28+dfsg-3 
abinit_9.10.4-3#1076027 - abinit: FTBFS with mpich as default MPI implementation on 32 bit architectures: Error: Type mismatch in argument ‘block_displ’ at (1); passed INTEGER(8) to INTEGER(4)
#1089281 - abinit: Supporting rootless builds
chafa_1.16.2-1 
code-saturne_6.0.2-2#1078336 - code-saturne: FTBFS with GCC 14: error: assignment to 'const cs_real_t *' {aka 'const double *'} from incompatible pointer type 'float *'
esys-particle_2.3.5+dfsg2-11#1044644 - esys-particle: Fails to build source after successful build
#1096589 - esys-particle: ftbfs with GCC-15
gatk-bwamem_1.0.4+dfsg2-3#1096676 - gatk-bwamem: ftbfs with GCC-15
gitlab-ci-multi-runner_14.10.1-1#1033480 - gitlab-ci-multi-runner: FTBFS on 32 bit archs: src/gitlab.com/gitlab-org/gitlab-runner/common/buildtest/masking.go:48:32: cannot use math.MaxInt64 (untyped int constant 9223372036854775807) as int value in argument to buf.Bytes (overflows)
#1080062 - gitlab-ci-multi-runner FTBFS: go install fails mysteriously
linbox_1.7.1-1 
rust-aya-obj_0.2.1-4 
rust-cid-npm_0.0~git20200813.59cf068-2 
rust-clone-file_0.1.0-3 
lomiri-location-service_3.3.0-2 
openturns_1.24-4 
python-jpype_1.6.0-1 
rust-apr_0.1.16-1 
rust-compound-duration_1.2.1-1 
rust-libdisplay-info-sys_0.2.2-1 
rust-liblzma-sys_0.3.7-1 
rust-libsensors-sys_0.2.0-1#1114359 - rust-libsensors-sys: FTBFS: error: test failed, to rerun pass `--lib`
rust-static-alloc_0.2.5-2 
libmath-int128-perl_0.22-5#1066062 - libmath-int128-perl: FTBFS on i386 "your compiler doesn't support a 128-bit integer type"
oaknut_1.2.2+git20240301.94c726c-2 
ocaml-decimal_1.0.2-1 
ocaml-iter_1.9-1 
ruby-cbor_0.5.9.8-1 
bbhash_1.0.0-6#1049876 - bbhash: FTBFS on 32 bit architectures
#1096359 - bbhash: ftbfs with GCC-15
bustools_0.43.2+dfsg-1#1112739 - bustools: FTBFS with CMake 4
feenox_1.2-1 
gjh-asl-json_0.0+git20210628.867c5da-1 
golang-github-tinylib-msgp_1.4.0-1 
gtsam_4.2.0+dfsg-1#1112982 - gtsam: FTBFS with CMake 4
haskell-arithmoi_0.13.0.0-1 
iem-plugin-suite_1.15.0-2#1107569 - iem-plugin-suite: FTBFS on armhf, i386, ppc64el, s390x
p4est_2.3.6-2 
spooles_2.2-14.2#1046321 - spooles: Fails to build source after successful build
#1049610 - spooles: Fails to build binary packages again after successful build
tracy_0.11.0+ds-1 
bifrost_1.3.1-1#1096367 - bifrost: ftbfs with GCC-15
#1112726 - bifrost: FTBFS with CMake 4
debian-installer_20250803+deb13u1#806984 - debian-installer: ftbfs because d-i needs network to build…
#1068197 - debian-installer: accesses the internet during build
flye_2.9.6+dfsg-1 
gdbuspp_3-2#1100841 - gdbuspp: FTBFS on 32 bit architectures
#1114118 - gdbuspp: FTBFS: /usr/include/c++/15/bits/new_allocator.h:172:66: error: 'void operator delete(void*, std::size_t)' called on pointer '__result' with nonzero offset 32 [-Werror=free-nonheap-object]
golang-github-d5-tengo_2.17.0-2 
haskell-cborg_0.2.10.0-1#968157 - src:haskell-cborg: testsuite fails due to bus errors on armhf
#1016062 - haskell-cborg FTBFS on 32bit: error: Couldn't match expected type ‘Int64#’ with actual type ‘Int#’
haskell-github_0.29-1#1085141 - haskell-github: FTBFS on 32-bit architectures
haskell-wide-word_0.1.6.0-1 
ply-probe_2.4.0-1 
prime-phylo_1.0.11-13#1097647 - prime-phylo: ftbfs with GCC-15
#1113421 - prime-phylo: FTBFS with CMake 4
prometheus-libvirt-exporter_0.2.0-1 
py-libzfs_0.0+git20240510.5ae7d5e-1#1082340 - py-libzfs FTBFS with Python 3.13
swt4-gtk_4.29.0-1#960769 - swt4-gtk FTBFS on 32bit
#1097959 - swt4-gtk: ftbfs with GCC-15
tinydyndns_0.4.2.debian1-4#1090038 - tinydyndns: FTBFS: Oops. Your getgroups() returned 0, and setgroups() failed
bpftune_0.0~git20250723.5966387-1 
webcamoid_9.3.0-1#1046833 - webcamoid: Fails to build source after successful build
linksem_0.8+dfsg3-2 
rust-kvm-ioctls_0.19.1-1 
libmaus2_2.0.813+ds-4#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*)'
pdfsandwich_0.1.7-3 
telegram-desktop_4.14.9+ds-1.1#1091237 - telegram-desktop: FTBFS on armhf: make[1]: *** [debian/rules:99: execute_before_dh_strip] Error 1
#1114647 - telegram: FTBFS: many undefined references
wlmaker_0.6-2 
abpoa_1.5.3-1 
cpptraj_5.1.0+dfsg-4#1091156 - cpptraj: FTBFS on arm64: make[2]: *** [Makefile:662: summary] Error 4
#1096471 - cpptraj: ftbfs with GCC-15
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)
tinyarray_1.2.4-1#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
#1017051 - tinyarray: FTBFS on i386
gforth_0.7.3+dfsg-9#1067376 - gforth: FTBFS: make[1]: *** [Makefile:655: build-libcc-named] Error 1
endless-sky_0.10.14-1#1112871 - endless-sky: FTBFS with CMake 4
giada_1.2.1-1#1112121 - giada_1.2.1-1_riscv64-buildd.changes REJECTED
slcfitsio_0.4.7~pre.19-3 
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
pyemd_0.5.1.54.g802fa86-2#1080277 - FTBFS with setuptools >= 72: error: invalid command 'test'
denemo_2.6.39-0.3#1106646 - denemo ftbfs with libxml 2.14.x from experimental
haskell-hindent_5.3.4-1#1053982 - haskell-hindent: Cannot update this package to newer version
rapmap_0.15.0+dfsg-4#976588 - rapmap: FTBFS on arm64 (when trying to build arch:all)
#1097770 - rapmap: ftbfs with GCC-15
audiotools_3.1.1-1.1#1080546 - Missing Build-Depends on python3-setuptools
#1098528 - audiotools: FTBFS: error: implicit declaration of function 'total_frame_sizes';
broker_1.4.0+ds1-1#1037597 - broker: ftbfs with GCC-13
#1112758 - broker: FTBFS with CMake 4
cheesecutter_2.9+git20211011-3#1096432 - cheesecutter: ftbfs with GCC-15
#1105302 - cheesecutter: FTBFS with make --shuffle=reverse: base.d:1244:44: error: file ‘"player.bin"’ cannot be found or not in a path specified with ‘-J’
cpm_0.32-1.6#1106610 - cpm ftbfs with libxml 2.14.x from experimental
cython-legacy_0.29.37-2#1078460 - cython-legacy: Keep out of testing
ecere-sdk_0.44.15-1#898832 - ecere-sdk: FTBFS on i386: /usr/lib/gcc/i686-linux-gnu/7/include/stddef.h:435:78: error: syntax error
#995050 - ecere-sdk FTBFS with gcc 10
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)
globjects_1.1.0-3#1090229 - globjects: FTBFS: error: ‘gl::BufferAccessMask’ has not been declared
#1112960 - globjects: FTBFS with CMake 4
gnome-subtitles_1.8-1#1069308 - FTBFS: tests failed
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
libvirt-php_0.5.8-7#1106642 - libvirt-php ftbfs with libxml 2.14.x from experimental
mia_2.4.7-13#1075270 - mia: ftbfs with GCC-14
#1113285 - mia: FTBFS with CMake 4
mongrel2_1.12.2-3#1075866 - mongrel2: FTBFS with MbedTLS 3.6
musescore2_2.3.2+dfsg4-16#1113306 - musescore2: FTBFS with CMake 4
#1114631 - musecore2: FTBFS: /usr/bin/ld: cannot find -lporttime: No such file or directory
musescore3_3.2.3+dfsg2-19#1113307 - musescore3: FTBFS with CMake 4
#1114632 - musecore3: FTBFS: collect2: error: ld returned 1 exit status
narcissus_1.0.7+ds-3#1103295 - narcissus: binary-any FTBFS
open-coarrays_2.10.2+ds-4#1097507 - open-coarrays: ftbfs with GCC-15
#1113349 - open-coarrays: FTBFS with CMake 4
plplot_5.15.0+dfsg2-15#1055228 - plplot: FTBFS on armhf (test segfault)
#1055750 - gfortran: [armhf] Yield SIGBUS when compiling with -fstack-clash-protection
#1097622 - plplot: ftbfs with GCC-15
pocketsphinx-python_1:0.1.15-7#1088764 - pocketsphinx-python: autopkgtest failure with Python 3.13
prody_2.4.1+dfsg-2#1058454 - prody: autopkgtest regression on i386
#1071807 - prody: FTBFS: ModuleNotFoundError: No module named 'numpy.testing.decorators'
#1114707 - prody: FTBFS with NumPy 2.3
pygccjit_0.4-13#1082097 - pygccjit FTBFS with Python 3.13
pysph_1.0~b1-8#1084148 - FTBFS: tests abort in pysph/base/tests/test_nnps.py
python-cogent_2024.5.7a1+dfsg-3#1090269 - python-cogent: FTBFS: E ImportError: Numba could not be imported.
python-cramjam_2.7.0.1+ds1-2#1061310 - python-cramjam FTBFS with pyo3 0.20
python-mbedtls_2.10.1-1#1075872 - python-mbedtls: FTBFS with MbedTLS 3.6
ruby-gd_0.8.0-8#1075461 - ruby-gd: ftbfs with GCC-14
ruby-mmap2_2.2.9-1#1075466 - ruby-mmap2: ftbfs with GCC-14
s2geometry_0.10.0-6.1#1059228 - build system hard-codes -std=c++11
segyio_1.8.3-1.2#1055728 - segyio ftbfs with Python 3.12
#1113495 - segyio: FTBFS with CMake 4
siconos_4.4.0+dfsg-4#1020544 - siconos: FTBFS on s390x: Cholesky solve kNM_test failed
#1046177 - siconos: Fails to build source after successful build
#1066316 - siconos: FTBFS: lcp_nsqp.c:139:3: error: implicit declaration of function ‘numerics_error’; did you mean ‘numerics_EXPORTS’? [-Werror=implicit-function-declaration]
#1113500 - siconos: FTBFS with CMake 4
swift-im_5.0~alpha2.145.g12d031cf8+dfsg-4.1#1111250 - swift-im ftbfs in unstable
#1111335 - swift-im FTBFS with libxml2 2.14.5
synfig_1.5.1+dfsg-4#1079335 - synfig FTBFS with autoconf 2.72
tiledarray_1.0.0-1#1087560 - tiledarray: FTBFS: missing cstdint include
xcolors_1.5a-11#1098126 - xcolors: ftbfs with GCC-15
xemacs21_21.4.24-12#1075659 - xemacs21: ftbfs with GCC-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]
silx_2.2.1+dfsg-4#1114379 - silx: FTBFS: dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p 3.13 returned exit code 13
9 FTBFS packages on i386 with a patch pending
epics-base_7.0.8.1+dfsg1-7#1079604 - epics-base:FTBFS:build failure (not support riscv64)
hx_25.01.1+20250505-3#1111814 - hx: FTBFS on 32 bit due to type mismatch
justbuild_1.6.0-1#1104294 - justbuild: FTBFS: Add loongarch64 support
libapache2-mod-python_3.5.0.1-3#1092440 - FTBFS with Python 3.13: error: implicit declaration of function '_PyImport_FixupExtensionObject'
libprelude_5.2.0-5.6#1081473 - FTBFS with Python 3.13
onnxruntime_1.21.0+dfsg-1#1105821 - onnxruntime: FTBFS: Cherry-pick upstream patch to fix error caused by "-Werror=strict-aliasing"
#1110690 - libonnxruntime-dev: FTBFS fix for i386 build
openjdk-11_11.0.29~4ea-2#1020494 - openjdk-11: add server JVM variant support for risc-v platform
sks_1.1.6+git20210302.c3ba6d5a-4.1#1073911 - FTBFS with OCaml 5.2.0 (Uses C functions without caml_ prefix)
vcdimager_2.0.1+dfsg-6#1106624 - vcdimager ftbfs with libxml 2.14.x from experimental