152 FTBFS packages on s390x without patch
basilisk2_0.9.20251105+dfsg-1.1 
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 
haskell-concurrent-extra_0.7.0.12-5 
mlucas_20.1.1-1.3 
oaklisp_1.3.8-2 
pbbam_2.4.0+dfsg-3 
python-skbio_0.6.3-1 
scaphandre_1.0.2-10 
thumbor_7.7.7-4#1125082 - thumbor: FTBFS: E AttributeError: module 'PIL.ImageCms' has no attribute 'FLAGS'.
weakforced_3.0.0-3 
armnn_23.08-5#1114054 - armnn: FTBFS: /<>/profiling/common/include/Packet.hpp:29:20: error: expected ')' before 'header'
audacity_3.7.7+dfsg-1#1021152 - audacity: FTBFS on armel, s390x
libpappsomspp_0.11.9-1 
pljs_1.0.4-1 
trimesh_4.5.1-3#1098270 - trimesh: Build fails on s390x due to math errors in autopkgtest
alembic-graphics_1.8.9-1 
aseba_1.6.99+dfsg-9#1074821 - aseba: ftbfs with GCC-14
#1112750 - aseba: FTBFS with CMake 4
ataqv_1.3.1+ds-2 
bitstruct_8.21.0-1 
croaring_0.2.66+ds-2.2 
dnsjit_1.5.0-3 
gatk-fermilite_1.2.1+dfsg-3 
golang-github-containers-luksy_0.0~git20240812.2e7307c+ds1-1 
lomiri-push-service_0.100.1-1 
oggvideotools_0.9.1-7.1 
prody_2.6.1+dfsg-1 
python-ltfatpy_1.1.2-3#861095 - python-ltfatpy: FTBFS: ValueError: Little-endian buffer not supported
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
ceccomp_3.5-2 
cld2_0.0.0-git20150806-10#865162 - cld2 FTBFS on big endian: checking non-dynamic implementations of dynamic data methods FAIL
cp2k_2025.2-3#1122398 - cp2k: FTBFS: Error: "grid" at (1) has the CONTIGUOUS attribute but is not an array pointer or an assumed-shape or assumed-rank array
ectrans_1.7.0-4 
filament_1.9.25+dfsg3-3#1006837 - Segmentation fault in material compiler on mips64el
lepton-eda_1.9.18-4 
libstreamvbyte_0.5.1-2 
lua-struct_0.3-2 
lua-vips_1.1.12-2#1073143 - lua-vips: Bus error in lua jit during tests
mariadb-connector-python_1.1.14-1 
packetq_1.7.3+dfsg-7 
pwru_1.0.5+ds1-2#1123431 - pwru: FTBFS: /<>/debian/build/src/github.com/cilium/pwru/bpf/kprobe_pwru.c:237:7: error: Invalid usage of the XADD return value
python-dicompylercore_0.5.6-3 
python-pairix_0.3.8-1 
rocketcea_1.2.1-2 
ruby-murmurhash3_0.1.7-1 
sbcl_2:2.6.0-1#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
synfig_1.5.3+dfsg-1 
watchman_4.9.0-9 
ddnet_19.1-2#1123883 - ddnet: FTBFS in unstable: undefined reference to `cxxbridge1$RustVersionRegister'
haskell-arithmoi_0.13.0.0-1 
haskell-crypton_1.0.4-1 
hhsuite_3.3.0+ds-9 
hotspot_1.3.0-2#1112994 - hotspot: 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
ndpi_4.2-2.1 
oarc-dsc_2.15.2-4 
oci-seccomp-bpf-hook_1.2.11+ds-1#1105472 - oci-seccomp-bpf-hook: FTBFS with make --shuffle=reverse: install: cannot stat 'oci-seccomp-bpf-hook*.1': No such file or directory
#1121712 - oci-seccomp-bpf-hook: FTBFS: cannot find package "github.com/containers/common/pkg/seccomp"
python-pysam_0.23.3+ds-2 
smallerc_1.0.2+dfsg-1 
zfs-fuse_0.7.0-33 
c-blosc2_2.22.0+ds-1 
dnscap_2.5.0-1 
geary_46.0-11 
libdng_0.2.2-1 
nim_2.2.4-2 
nng_1.11-2 
openni_1.5.4.0+dfsg-8 
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 
unifrac-tools_1.4-3#1105659 - unifrac-tools: FTBFS with make --shuffle=reverse: ld: cannot find -lssu: No such file or directory
bpftune_0.0~git20251206.4bcc284-1 
burrow_1.2.1-4 
papi_7.2.0-2#861765 - papi FTBFS on s390x: OVERFLOW_ADDRESS() and _papi_hwd_lock/unlock undefined!
pymupdf_1.25.4+ds1-4 
rust-lv2-sys_2.0.0-1.1 
sedutil_1.20.0-2 
zycore-c_1.5.2-1 
ares_147+dfsg-1#1059554 - ares: FTBFS: "unknown arch, please specify manually"
hmmer_3.4+dfsg-3 
kcov_43+dfsg-2 
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
pocl_6.0-7#1074261 - pocl: FTBFS on several arches due to failing tests
silver-platter_0.7.0-2#1125080 - silver-platter: FTBFS: test result: FAILED. 73 passed; 48 failed; 0 ignored; 0 measured; 0 filtered out
td_1.8.38~git20251126.f0d04d3+dfsg-1 
td1.8.11_1.8.11~git20230202.3179d35+dfsg-5 
aegisub_3.4.2+ds-1 
cpufetch_1.07-1 
paryfor_0.1-9 
rust-kvm-ioctls_0.21.0-1 
mpqc_2.3.1-22#1049570 - mpqc: Fails to build binary packages again after successful build
#1075293 - mpqc: ftbfs with GCC-14
ply-probe_2.4.0-1 
abpoa_1.5.5-1 
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
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*)'
haskell-with-location_0.1.0-10#1125644 - haskell-with-location: FTBFS: Test suite spec: FAIL
tinyarray_1.2.5-1#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
bwa-mem2_2.2.1-1 
cypari2_2.1.4-1#1081687 - Times out building on arm64
drawterm_20240821-0.1 
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
llvm-toolchain-14_1:14.0.6-20#1068840 - llvm-toolchain-14: FTBFS on mips64el: /<>/compiler-rt/lib/builtins/clear_cache.c:97:3: error: implicit declaration of function 'syscall' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
#1076412 - FTBFS with OCaml 5.2.0 (Uses C functions without caml_ prefix)
#1113234 - llvm-toolchain-14: FTBFS with CMake 4
#1125248 - llvm-toolchain-14: build-depends on g++-multilib [s390x], which will get removed
pydevd_3.4.1+ds-1#1122040 - pydevd: FTBFS with Python 3.14: test failures
broker_1.4.0+ds1-1#1037597 - broker: ftbfs with GCC-13
#1112758 - broker: FTBFS with CMake 4
camitk_5.2.0-5 
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
gpyfft_0.7.1-3#1120241 - gpyfft: FTBFS: AttributeError: module 'gpyfft.gpyfftlib' has no attribute 'CLFFT_DOUBLE'
haskell-tar_0.6.4.0-1#1124978 - haskell-tar: FTBFS: Encountered missing or private dependencies: directory-ospath-streaming >=0.2.1 && <0.3, file-io <0.2
lintian-brush_0.162#1114184 - lintian-brush: FTBFS: failed to select a version for the requirement `pyo3 = ">=0.22, <0.24"`
#1115809 - lintian-brush: FTBFS: failed to select a version for the requirement `pyo3 = ">=0.22, <0.24"`
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
pymatgen_2025.10.7+dfsg1-1#1118027 - pymatgen: test_packmol test_atoms_constraints fails on various architectures
python-cogent_2024.5.7a1+dfsg-3#1090269 - python-cogent: FTBFS: E ImportError: Numba could not be imported.
tiledarray_1.0.0-1#1087560 - tiledarray: FTBFS: missing cstdint include
xaw3d_1.5+F-3#1098120 - xaw3d: ftbfs with GCC-15
xemacs21_21.4.24-12#1075659 - xemacs21: ftbfs with GCC-14
abseil_20240722.0-4 
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)
#1122607 - ccls ftbfs with LLVM 21
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
cpp-httplib_0.18.7-1#1041249 - cpp-httplib: FTBFS on s390x, armhf due to flaky tests
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
keepassxc_2.7.10+dfsg1-2#1120396 - keepassxc FTBFS with botan3/3.10.0
libhdate_1.6.02-2.1#1045497 - libhdate: Fails to build source after successful build
#1102875 - libhdate: add perl-xs-dev to Build-Depends
liboping_1.10.0-5#1102879 - liboping: add perl-xs-dev to Build-Depends
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]'
mercurial_7.1.1-1#1052811 - mercurial: test-http-bad-server.t intermittent failure
#1069407 - mercurial: FTBFS on arm64: dh_auto_test: error: make -j4 check PYTHON=python3 "TESTFLAGS=--verbose --timeout 1800 --jobs 4 --blacklist /<>/debian/mercurial.test_blacklist" returned exit code 2
#1073270 - mercurial: FTBFS on hppa - test-bundle.t output changed
#1074678 - mercurial: FTBFS: dh_auto_test: error: make -j8 check PYTHON=python3 "TESTFLAGS=--verbose --timeout 1800 --jobs 8 --blacklist /<>/debian/mercurial.test_blacklist" returned exit code 2
#1121613 - mercurial: FTBFS with Python 3.14
python-cramjam_2.7.0.1+ds1-2#1061310 - python-cramjam FTBFS with pyo3 0.20
python-line-profiler_5.0.0-1#1122001 - python-line-profiler: FTBFS with Python 3.14: multiple test failures
python-mbedtls_2.10.1-1#1075872 - python-mbedtls: FTBFS with MbedTLS 3.6
ros-robot-state-publisher_1.15.2-5#1125761 - ros-robot-state-publisher FTBFS with CMake 4
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
sphinxbase_0.8+5prealpha+1-21#1097917 - sphinxbase: ftbfs with GCC-15
stdgpu_1.3.0+git20220507.32e0517-6#1119033 - stdgpu: FTBFS with libamdhip64-dev 6.4.3
syslog-ng_4.8.1-7#1124213 - syslog-ng: FTBFS: error: ISO C90 forbids mixed declarations and code
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]
13 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’)
epics-base_7.0.8.1+dfsg1-8#1079604 - epics-base:FTBFS:build failure (not support riscv64)
firefox_147.0-1#1035947 - fresh build from git fails with cannot access local variable 'new_file'
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
numba_0.61.2+dfsg-2#1119030 - numba: needs update for Python 3.14
python-casacore_3.7.1-2#1122028 - python-casacore: FTBFS with Python 3.14
ros-laser-geometry_1.6.7-5#1125763 - ros-laser-geometry FTBFS with CMake 4
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)
strace_6.18+ds-1#1125246 - strace: build-depends on gcc-multilib [s390x], which will get removed
yosys_0.52-2#1122498 - yosys: FTBFS: dh_auto_build: error: make -j2 INSTALL="install --strip-program=true" docs DOC_TARGET=latexpdf returned exit code 2