158 FTBFS packages on s390x without patch
basilisk2_0.9.20251105+dfsg-1 
eclipse-equinox_4.29-2 
efivar_39-2#1105354 - efivar: FTBFS with make --shuffle=reverse: efisecdb: could not open "test.esl.sha256.unsorted.esl.result": No such file or directory
pthreadpool_0.0~git20251020.0e6ca13-1 
pbbam_2.4.0+dfsg-2 
python-skbio_0.6.3-1 
scaphandre_1.0.2-10 
thumbor_7.7.7-4 
weakforced_3.0.0-3 
dnsjit_1.5.0-3 
mlucas_20.1.1-1.3 
numba_0.61.2+dfsg-2#1077047 - numba: FTBFS when running tests: Fatal Python error: Segmentation fault [arm64, mips64el]
#1108051 - numba: FTBFS: The keyword argument 'parallel=True' was specified but no transformation for parallel execution was possible.
#1119030 - numba: needs update for Python 3.14
prody_2.6.1+dfsg-1 
scalapack_2.2.2-2 
trimesh_4.5.1-3#1098270 - trimesh: Build fails on s390x due to math errors in autopkgtest
armnn_23.08-5#1114054 - armnn: FTBFS: /<>/profiling/common/include/Packet.hpp:29:20: error: expected ')' before 'header'
aseba_1.6.99+dfsg-9#1074821 - aseba: ftbfs with GCC-14
#1112750 - aseba: FTBFS with CMake 4
audacity_3.7.5+dfsg-3#1021152 - audacity: FTBFS on armel, s390x
gatk-fermilite_1.2.1+dfsg-2 
golang-github-containers-luksy_0.0~git20240812.2e7307c+ds1-1 
lomiri-push-service_0.100.1-1 
pljs_1.0.3-2 
rust-merlin_3.0.0-1 
rust-random-trait_0.1.1-1 
rust-serde-bser_0.4.0-1 
snap-aligner_2.0.5+dfsg-1 
vg_1.59.0+ds-0.1#976511 - vg: FTBFS on arm64: configure: error: Could not find a version of the library!
#1089275 - vg: FTBFS with make 4.4.1
#1113618 - vg: FTBFS with CMake 4
alembic-graphics_1.8.9-1 
ataqv_1.3.1+ds-2 
bitstruct_8.21.0-1#1043976 - bitstruct: Fails to build source after successful build
cld2_0.0.0-git20150806-10#865162 - cld2 FTBFS on big endian: checking non-dynamic implementations of dynamic data methods FAIL
croaring_0.2.66+ds-2.2 
ddnet_19.1-2 
gretl_2025c-1#1044529 - gretl: Fails to build source after successful build
#1105327 - gretl: FTBFS with make --shuffle=reverse: tar: /build/reproducible-path/gretl-2025a/debian/movelist: Cannot stat: No such file or directory
lepton-eda_1.9.18-3 
libbgcode_0.0~git20250220.5041c09-1 
libstreamvbyte_0.5.1-2#1121002 - libstreamvbyte: Consider disabling the build on unsupported architectures
lua-struct_0.3-2 
lua-vips_1.1.12-2#1073143 - lua-vips: Bus error in lua jit during tests
ocaml-posix_2.2.0-1 
oggvideotools_0.9.1-7.1 
packetq_1.7.3+dfsg-7 
pwru_1.0.5+ds1-2 
python-ltfatpy_1.1.2-3#861095 - python-ltfatpy: FTBFS: ValueError: Little-endian buffer not supported
python-pairix_0.3.8-1 
rocketcea_1.2.1-2 
ruby-murmurhash3_0.1.7-1 
sbcl_2:2.5.10-1#1049196 - sbcl: Fails to build source after successful build
#1069520 - sbcl: FTBFS on armhf: make[1]: *** [debian/rules:53: override_dh_auto_build] Error 1
#1102309 - sbcl: FTBFS: flaky tests
watchman_4.9.0-9 
filament_1.9.25+dfsg3-3#1006837 - Segmentation fault in material compiler on mips64el
forgejo-cli_0.3.0-8 
gatk-bwamem_1.0.4+dfsg2-3#1096676 - gatk-bwamem: ftbfs with GCC-15
gimp_3.0.4-6.2#1044598 - gimp: Fails to build source after successful build
#1088168 - gimp 3 FTBFS on s390x
hhsuite_3.3.0+ds-9 
hotspot_1.3.0-2#1112994 - hotspot: FTBFS with CMake 4
hsail-tools_0~20180830-1#1101849 - hsail-tools: FTBFS: error: 'Dwarf_P_Die' does not name a type
#1112995 - hsail-tools: FTBFS with CMake 4
ivar_1.4.4+dfsg-1#1105421 - ivar: FTBFS with make --shuffle=reverse: dh_auto_test: error: make -j1 check "TESTSUITEFLAGS=-j1 --verbose" VERBOSE=1 returned exit code 2
libldac_2.0.2.3+git20200429+ed310a0-5#980372 - libldac: FTBFS on all big-endian architectures: #error unsupported byte order
mariadb-connector-python_1.1.14-1 
ndpi_4.2-2.1 
oarc-dsc_2.15.2-4 
oclgrind_21.10-4#893016 - oclgrind FTBFS on big endian: test failures
#1113339 - oclgrind: FTBFS with CMake 4
python-dicompylercore_0.5.6-3 
python-pysam_0.23.3+ds-2 
smallerc_1.0.2+dfsg-1 
yosys_0.52-2 
c-blosc2_2.17.1+ds-2 
dnscap_2.5.0-1 
geary_46.0-8 
libdng_0.2.2-1 
libengine-gost-openssl_3.0.2-1#1054922 - libengine-gost-openssl: FTBFS on s390x
#1113146 - libengine-gost-openssl: FTBFS with CMake 4
#1115372 - libengine-gost-openssl: FTBFS: testm1.dat: No such file or directory
libgig_4.5.0-1 
nim_2.2.4-1#1047012 - nim: Fails to build source after successful build
openni_1.5.4.0+dfsg-8 
py-libzfs_0.0+git20240510.5ae7d5e-1#1082340 - py-libzfs FTBFS with Python 3.13
repowerd_2025.09-1 
rust-criterion-cycles-per-byte_0.6.1-1 
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
sideretro_1.1.6-2 
tinydyndns_0.4.2.debian1-4#1090038 - tinydyndns: FTBFS: Oops. Your getgroups() returned 0, and setgroups() failed
unifrac-tools_1.4-3#1105659 - unifrac-tools: FTBFS with make --shuffle=reverse: ld: cannot find -lssu: No such file or directory
ck_0.7.2-7#1108341 - ck: FTBFS randomly: build never ends
haskell-arithmoi_0.13.0.0-1 
litecoin_0.21.4-1#1097305 - litecoin: ftbfs with GCC-15
openstructure_2.11.1-1#976491 - openstructure: FTBFS on arm64: E: Build killed with signal TERM after 150 minutes of inactivity
papi_7.2.0-2#861765 - papi FTBFS on s390x: OVERFLOW_ADDRESS() and _papi_hwd_lock/unlock undefined!
rust-lv2-sys_2.0.0-1.1 
sedutil_1.20.0-2 
webcamoid_9.3.0-1#1046833 - webcamoid: Fails to build source after successful build
zycore-c_1.5.2-1 
hmmer_3.4+dfsg-3 
kcov_43+dfsg-2 
pymatgen_2025.10.7+dfsg1-1 
td_1.8.38~git20250919.369ee92+dfsg-1 
td1.8.11_1.8.11~git20230202.3179d35+dfsg-4 
ares_134+dfsg-1#1059554 - ares: FTBFS: "unknown arch, please specify manually"
bpftune_0.0~git20250723.5966387-1 
cpufetch_1.07-1 
paryfor_0.1-9 
pocl_6.0-7#1074261 - pocl: FTBFS on several arches due to failing tests
rust-kvm-ioctls_0.21.0-1 
silver-platter_0.7.0-2 
aegisub_3.4.2+ds-1#1044117 - aegisub: Fails to build source after successful build
feenox_1.2-1#1121362 - feenox: FTBFS: FAIL: tests/moment-of-inertia.sh
nvidia-texture-tools_2.0.8-1+dfsg-11 
ply-probe_2.4.0-1 
rust-landlock_0.4.3-1 
asmixer_0.5-18 
cpptraj_5.1.0+dfsg-5#1035833 - cpptraj: FTBFS on \!amd64
#1091156 - cpptraj: FTBFS on arm64: make[2]: *** [Makefile:662: summary] Error 4
drawterm-9front_0~git20220608.bee4db6-3#1096545 - drawterm-9front: ftbfs with GCC-15
libzypp_17.37.17-1#1120826 - libzypp FTBFS with rpm 6.0.0
mpqc_2.3.1-22#1049570 - mpqc: Fails to build binary packages again after successful build
#1075293 - mpqc: ftbfs with GCC-14
abpoa_1.5.5-1 
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*)'
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
gst-python1.0_1.26.8-1#1044853 - gst-python1.0: Fails to build source after successful build
#1120929 - gst-python1.0: FTBFS: Summary of Failures: 1/5 Test gst FAIL
bwa-mem2_2.2.1-1 
rust-generator_0.7.1-1.1#1003070 - rust-generator should not claim to build on "any" as upstream only supports amd64/arm64
rust-hexyl_0.16.0-1#1121665 - rust-hexyl FTBFS on !x86: strip: Unable to recognise the architecture of the input file
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'
haskell-hindent_5.3.4-1#1053982 - haskell-hindent: Cannot update this package to newer version
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
caja-seahorse_1.18.5-3#1043843 - caja-seahorse: Fails to build source after successful build
#1117219 - caja-seahorse: FTBFS against gpgme 2 ('GPGME_EVENT_NEXT_TRUSTITEM' undeclared)
cambalache_0.97.7-1 
camitk_5.2.0-5#1117520 - camitk: FTBFS with VTK 9.5
ceph_18.2.7+ds-1#1092838 - ceph: FTBFS with fmtlib 11.1
#1096424 - ceph: ftbfs with GCC-15
#1112772 - ceph: 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’
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 *'
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
dav-text_0.9.0-5#1096506 - dav-text: ftbfs with GCC-15
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
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
libcryptui_3.12.2-8#1047253 - libcryptui: Fails to build source after successful build
#1117230 - libcryptui: FTBFS against gpgme 2 ('GPGME_EVENT_NEXT_TRUSTITEM' undeclared)
librtr_0.8.0-1.1 
libvirt-php_0.5.8-7#1106642 - libvirt-php ftbfs with libxml 2.14.x from experimental
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
pay-respects_0.7.8-1#1117914 - pay-respects: FTBFS: error: failed to select a version for the requirement `colored = "^2"`
pocketsphinx-python_1:0.1.15-7#1088764 - pocketsphinx-python: autopkgtest failure with Python 3.13
pygccjit_0.4-13#1082097 - pygccjit FTBFS with Python 3.13
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
python-proton-vpn-local-agent_1.4.3-1#1119686 - python-proton-vpn-local-agent FTBFS: error: no matching package named `static_assertions` found
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
stdgpu_1.3.0+git20220507.32e0517-6#1119033 - stdgpu: FTBFS with libamdhip64-dev 6.4.3
synfig_1.5.1+dfsg-4#1079335 - synfig FTBFS with autoconf 2.72
tiledarray_1.0.0-1#1087560 - tiledarray: FTBFS: missing cstdint include
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]
10 FTBFS packages on s390x with a patch pending
cuneiform_1.1.0+dfsg-13#1115251 - cuneiform: fix FTBFS on riscv64
diet-ng_1.8.1-3#1019477 - diet-ng: FTBFS on riscv64 and s390x (unrecognized command line option ‘-main’)
emacs_1:30.2+1-2#1000744 - emacs: FTBFS on mipsel: Ran 3873 tests, 3786 results as expected, 1 unexpected, 86 skipped
epics-base_7.0.8.1+dfsg1-8#1079604 - epics-base:FTBFS:build failure (not support riscv64)
firefox_145.0.1-1#1035947 - fresh build from git fails with cannot access local variable 'new_file'
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
libretro-desmume_0.9.11+git20160819+dfsg1-2#955642 - libretro-desmume FTBFS for mipsen: missing #include for struct timeval
siconos_4.4.0+dfsg-5#1121341 - siconos FTBFS on riscv64: Build killed with signal TERM after 720 minutes of inactivity
sks_1.1.6+git20210302.c3ba6d5a-4.1#1073911 - FTBFS with OCaml 5.2.0 (Uses C functions without caml_ prefix)