95 FTBFS packages on riscv64 without patch
lziprecover_1.26~rc2-111d [B][L][T] 
opensnitch_1.6.9-3208d [B][L][T]#1108846 - opensnitch: fix loongarch/riscv build
parmed_4.3.0+dfsg-354d [B][L][T] 
python-ptrace_0.9.9-0.317d [B][L][T]#1087588 - python-ptrace: FTBFS on riscv64: OverflowError: Python int too large to convert to C long
xtrs_4.9d-2.1277d [B][L][T] 
delve_1.24.0-4277d [B][L][T] 
efitools_1.9.2-49h [B][L][T]#1044216 - efitools: Fails to build source after successful build
octave-level-set_0.3.1~git.2019.04.13-896d [B][L][T] 
octave-mapping_1.4.3-293d [B][L][T] 
sia_1.3.0-4277d [B][L][T] 
armnn_23.08-599d [B][L][T]#1114054 - armnn: FTBFS: /<>/profiling/common/include/Packet.hpp:29:20: error: expected ')' before 'header'
composefs_1.0.8-230d [B][L][T] 
mono_6.14.1+ds2-1137d [B][L][T] 
rust-jemalloc-sys_0.3.2-2.1277d [B][L][T]#1018724 - rust-jemalloc-sys FTBFS on riscv64(gc)
snapd_2.71-313d [B][L][T]#1047693 - snapd: Fails to build source after successful build
btas_1.0.0-1.113d [B][L][T] 
erlang-ranch_1.3.0-2872d [B][L][T]#980951 - erlang-ranch: FTBFS: ssl:cipher_suites/0 is deprecated
libapache-db-perl_0.18-2645d [B][L][T]#1040396 - libapache-db-perl: FTBFS with Perl 5.38: hidden symbol `Perl_init_debugger' isn't defined
libembperl-perl_2.5.0-17277d [B][L][T]#1042845 - libembperl-perl: FTBFS with Perl 5.38: test failures
pixmap_2.6.6-1701d [B][L][T]#1054698 - pixmap: FTBFS: ././Pixmap.c:1145:(.text+0xe631): undefined reference to `xpmReadRgbNames'
vg_1.59.0+ds-0.1277d [B][L][T]#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
ectrans_1.7.0-44d [B][L][T] 
lomiri-location-service_3.3.0-251d [B][L][T] 
lua-struct_0.3-296d [B][L][T] 
lua-vips_1.1.12-2277d [B][L][T]#1073143 - lua-vips: Bus error in lua jit during tests
pwru_1.0.5+ds1-291d [B][L][T]#1123431 - pwru: FTBFS: /<>/debian/build/src/github.com/cilium/pwru/bpf/kprobe_pwru.c:237:7: error: Invalid usage of the XADD return value
haskell-crypton_1.0.4-111d [B][L][T] 
ldc_1:1.41.0-138d [B][L][T]#1010421 - gir-to-d: FTBFS with ldc 1.29
#1011739 - gir-to-d: FTBFS: LinkedHasMap.d:27: undefined reference to `_D6object__T8opEqualsTxC3gtd11GirFunctionQnTxQwZQBkFxQBexQBiZb'
#1016433 - FTBFS: undefined reference during linking
#1122608 - ldc ftbfs with LLVM 21
oci-seccomp-bpf-hook_1.2.11+ds-148d [B][L][T]#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"
rapmap_0.15.0+dfsg-5100d [B][L][T]#976588 - rapmap: FTBFS on arm64 (when trying to build arch:all)
rust-criterion-cycles-per-byte_0.6.1-1277d [B][L][T] 
rust-mach-o-sys_0.1.1-3897d [B][L][T]#953285 - rust-mach-o-sys fails on architectures with unsigned char
#976484 - rust-mach-o-sys: unsigned values cannot be negated
bpftune_0.0~git20251206.4bcc284-129d [B][L][T] 
plotsauce_0~0.1-1137d [B][L][T]#1072135 - plotsauce: FTBFS: plotsauce.qbs:11:5 Dependency 'zlib' not found for product 'plotsauce'.
pyfftw_0.15.0-1.1277d [B][L][T]#917095 - python3-pyfftw: alignment tests fail on several arches
rust-lv2-sys_2.0.0-1.1277d [B][L][T] 
golang-github-coreos-discovery-etcd-io_2.0.0+git2019.04.19.git.78fb45d3c9-4277d [B][L][T] 
hmmer_3.4+dfsg-3110d [B][L][T] 
openstructure_2.11.1-194d [B][L][T]#976491 - openstructure: FTBFS on arm64: E: Build killed with signal TERM after 150 minutes of inactivity
pocl_6.0-7127d [B][L][T]#1074261 - pocl: FTBFS on several arches due to failing tests
silver-platter_0.7.0-252d [B][L][T]#1125080 - silver-platter: FTBFS: test result: FAILED. 73 passed; 48 failed; 0 ignored; 0 measured; 0 filtered out
aegisub_3.4.2+ds-1118d [B][L][T] 
sphde_1.4.0-5.1277d [B][L][T]#1048093 - sphde: Fails to build source after successful build
#1125773 - sphde: FTBFS on arm64: TERM after 150 minutes of inactivity
mpqc_2.3.1-22415d [B][L][T]#1049570 - mpqc: Fails to build binary packages again after successful build
#1075293 - mpqc: ftbfs with GCC-14
abpoa_1.5.5-161d [B][L][T] 
cpptraj_5.1.0+dfsg-5118d [B][L][T]#1035833 - cpptraj: FTBFS on \!amd64
#1091156 - cpptraj: FTBFS on arm64: make[2]: *** [Makefile:662: summary] Error 4
haskell-with-location_0.1.0-106d [B][L][T]#1125644 - haskell-with-location: FTBFS: Test suite spec: FAIL
tinyarray_1.2.5-125d [B][L][T]#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_2.2.1-1276d [B][L][T] 
cypari2_2.1.4-1463d [B][L][T]#1081687 - Times out building on arm64
drawterm_20240821-0.17d [B][L][T] 
pyemd_0.5.1.54.g802fa86-2418d [B][L][T]#1080277 - FTBFS with setuptools >= 72: error: invalid command 'test'
rust-generator_0.7.1-1.1316d [B][L][T]#1003070 - rust-generator should not claim to build on "any" as upstream only supports amd64/arm64
llvm-toolchain-14_1:14.0.6-2022d [B][L][T]#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
pydevd_3.4.1+ds-143d [B][L][T]#1122040 - pydevd: FTBFS with Python 3.14: test failures
broker_1.4.0+ds1-1324d [B][L][T]#1037597 - broker: ftbfs with GCC-13
#1112758 - broker: FTBFS with CMake 4
camitk_5.2.0-594d [B][L][T] 
cython-legacy_0.29.37-2428d [B][L][T]#1078460 - cython-legacy: Keep out of testing
denemo_2.6.39-0.3133d [B][L][T]#1106646 - Data Loss on load with libxml v1.3+
#1115689 - denemo: FTBFS: source/proof.c:282:28: error: conflicting types for ‘ev_document_annotations_get_annotations’; have ‘EvMappingList *(void)’ {aka ‘struct _EvMappingList *(void)’}
ecere-sdk_0.44.15-1905d [B][L][T]#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_0.7.1-343d [B][L][T]#1120241 - gpyfft: FTBFS: AttributeError: module 'gpyfft.gpyfftlib' has no attribute 'CLFFT_DOUBLE'
haskell-tar_0.6.4.0-113d [B][L][T]#1124978 - haskell-tar: FTBFS: Encountered missing or private dependencies: directory-ospath-streaming >=0.2.1 && <0.3, file-io <0.2
lintian-brush_0.16239d [B][L][T]#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_1:0.1.15-7324d [B][L][T]#1088764 - pocketsphinx-python: autopkgtest failure with Python 3.13
pygccjit_0.4-13428d [B][L][T]#1082097 - pygccjit FTBFS with Python 3.13
pymatgen_2025.10.7+dfsg1-134d [B][L][T]#1118027 - pymatgen: test_packmol test_atoms_constraints fails on various architectures
python-cogent_2024.5.7a1+dfsg-3277d [B][L][T]#1090269 - python-cogent: FTBFS: E ImportError: Numba could not be imported.
tiledarray_1.0.0-1131d [B][L][T]#1087560 - tiledarray: FTBFS: missing cstdint include
xaw3d_1.5+F-312d [B][L][T]#1098120 - xaw3d: ftbfs with GCC-15
xemacs21_21.4.24-12367d [B][L][T]#1075659 - xemacs21: ftbfs with GCC-14
abseil_20240722.0-42d [B][L][T] 
ccls_0.20241108-138d [B][L][T]#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_6.0.2-280d [B][L][T]#1078336 - code-saturne: FTBFS with GCC 14: error: assignment to 'const cs_real_t *' {aka 'const double *'} from incompatible pointer type 'float *'
cpm_0.32-1.663d [B][L][T]#1106610 - cpm ftbfs with libxml 2.14.x from experimental
cpp-httplib_0.18.7-12d [B][L][T]#1041249 - cpp-httplib: FTBFS on s390x, armhf due to flaky tests
frama-c_20220511-manganese-521d [B][L][T]#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_1.1.0-3382d [B][L][T]#1090229 - globjects: FTBFS: error: ‘gl::BufferAccessMask’ has not been declared
#1112960 - globjects: FTBFS with CMake 4
gnucap-python_0.0.2-1.2355d [B][L][T]#1067335 - gnucap-python: FTBFS: _gnucap_swig.cxx:4535:10: fatal error: numpy/arrayobject.h: No such file or directory
keepassxc_2.7.10+dfsg1-248d [B][L][T]#1120396 - keepassxc FTBFS with botan3/3.10.0
libhdate_1.6.02-2.11d [B][L][T]#1045497 - libhdate: Fails to build source after successful build
#1102875 - libhdate: add perl-xs-dev to Build-Depends
liboping_1.10.0-51d [B][L][T]#1102879 - liboping: add perl-xs-dev to Build-Depends
libvirt-php_0.5.8-7153d [B][L][T]#1106642 - libvirt-php ftbfs with libxml 2.14.x from experimental
linphone_5.3.105-61d [B][L][T]#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_7.1.1-146d [B][L][T]#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+ds1-2727d [B][L][T]#1061310 - python-cramjam FTBFS with pyo3 0.20
python-line-profiler_5.0.0-144d [B][L][T]#1122001 - python-line-profiler: FTBFS with Python 3.14: multiple test failures
python-mbedtls_2.10.1-1429d [B][L][T]#1075872 - python-mbedtls: FTBFS with MbedTLS 3.6
ros-robot-state-publisher_1.15.2-51d [B][L][T]#1125761 - ros-robot-state-publisher FTBFS with CMake 4
ruby-gd_0.8.0-8340d [B][L][T]#1075461 - ruby-gd: ftbfs with GCC-14
ruby-mmap2_2.2.9-1340d [B][L][T]#1075466 - ruby-mmap2: ftbfs with GCC-14
s2geometry_0.10.0-6.1622d [B][L][T]#1059228 - build system hard-codes -std=c++11
sphinxbase_0.8+5prealpha+1-2146d [B][L][T]#1097917 - sphinxbase: ftbfs with GCC-15
stdgpu_1.3.0+git20220507.32e0517-649d [B][L][T]#1119033 - stdgpu: FTBFS with libamdhip64-dev 6.4.3
syslog-ng_4.8.1-720d [B][L][T]#1124213 - syslog-ng: FTBFS: error: ISO C90 forbids mixed declarations and code
xpra_3.1.5+dfsg1-0.2119d [B][L][T]#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]
15 FTBFS packages on riscv64 with a patch pending
cuneiform_1.1.0+dfsg-13124d [B][L][T]#1115251 - cuneiform: fix FTBFS on riscv64
deal.ii_9.7.1-215d [B][L][T]#1120656 - deal.ii: FTBFS: Fix relocation R_LARCH_B26 overflow on loong64
epics-base_7.0.8.1+dfsg1-897d [B][L][T]#1079604 - epics-base:FTBFS:build failure (not support riscv64)
flexpart_9.02-2738d [B][L][T]#1120039 - flexpart: fix FTBFS on riscv64
haskell-charsetdetect-ae_1.1.0.4-7.111d [B][L][T]#1104895 - haskell-charsetdetect-ae: please add build support for riscv64
libprelude_5.2.0-5.6359d [B][L][T]#1081473 - FTBFS with Python 3.13
libreswan_5.2-2.313d [B][L][T]#1124401 - libreswan FTBFS on alpha/riscv64/sparc64
llvmlite_0.44.0-1127d [B][L][T]#1071569 - llvmlite:FTBFS:compile failed(test: plugin distutils failed with: exit code=134)
#1120659 - llvmlite: prevent tests break on loong64
numba_0.61.2+dfsg-244d [B][L][T]#1119030 - numba: needs update for Python 3.14
python-casacore_3.7.1-243d [B][L][T]#1122028 - python-casacore: FTBFS with Python 3.14
ros-laser-geometry_1.6.7-51d [B][L][T]#1125763 - ros-laser-geometry FTBFS with CMake 4
scrollz_2.2.3-2668d [B][L][T]#1066483 - scrollz: FTBFS: configure: error: Fatal: You must get working getaddrinfo() function.
siconos_4.4.0+dfsg-555d [B][L][T]#1121341 - siconos FTBFS on riscv64: Build killed with signal TERM after 720 minutes of inactivity
sks_1.1.6+git20210302.c3ba6d5a-4.1528d [B][L][T]#1073911 - FTBFS with OCaml 5.2.0 (Uses C functions without caml_ prefix)
valentina_1.0.0~dfsg-434d [B][L][T]#1122981 - FTBFS: valentina fails to build on riscv64 with GCC 15.2