100 FTBFS packages on riscv64 without patch
delve_1.26.1-1#1137556 - delve: FTBFS with golang-1.26 (1.26.3-2): TestDisassPosCmd fails
lziprecover_1.26-1 
octave-level-set_0.3.1~git.2019.04.13-8 
python-ptrace_0.9.9-0.3#1087588 - python-ptrace: FTBFS on riscv64: OverflowError: Python int too large to convert to C long
qtdeclarative-opensource-src_5.15.17+dfsg-4#1105556 - qtdeclarative-opensource-src: FTBFS with make --shuffle=reverse: collect2: error: ld returned 1 exit status
xtrs_4.9d-3 
emacs-jabber_0.10.10-1#1139220 - emacs-jabber: FTBFS: No rule to make target 'picomemo/hacl.h', needed by 'jabber-omemo-core.so'.
gnome-podcasts_25.3+dfsg-2 
octave-mapping_1.4.3-2 
opensnitch_1.6.9-3#1108846 - opensnitch: fix loongarch/riscv build
#1131582 - opensnitch: FTBFS: /lib/modules/6.19.8+deb14-amd64/source/include/linux/ns_common.h:25:23: error: no member named 'ns_id' in 'struct ns_common'
python-persistent_6.7-1 
sia_1.3.0-4#1089970 - keep Sia out of testing
armnn_23.08-5#1114054 - armnn: FTBFS: /<>/profiling/common/include/Packet.hpp:29:20: error: expected ')' before 'header'
dav2d_0.0.1-1 
parmed_4.3.1+dfsg-1 
rust-jemalloc-sys_0.3.2-2.1#1018724 - rust-jemalloc-sys FTBFS on riscv64(gc)
tiny_0.13.0-2 
udev-hid-bpf_2.2.0.20251121.69.g237833d-1 
btas_1.0.0-1.1 
erlang-ranch_1.3.0-2#980951 - erlang-ranch: FTBFS: ssl:cipher_suites/0 is deprecated
libembperl-perl_2.5.0-17#1042845 - libembperl-perl: FTBFS with Perl 5.38: test failures
#1137057 - libembperl-perl: FTBFS in bookworm
numba_0.65.1+dfsg-3 
rdkit_202603.2-1#1136322 - rdkit: FTBFS with libeigen3-dev 5.0 (major version transition)
sass-grass_0.13.4-4#1135277 - sass-grass: FTBFS: error[E0053]: method `debug` has an incompatible type for trait
scifem_0.19.0-1#1138199 - scifem FTBFS on multiple architectures due to -march=native usage
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
lua-struct_0.3-2 
lua-vips_1.1.12-2#1073143 - lua-vips: Bus error in lua jit during tests
ovito_3.15.4~ds-1 
zsv_1.3.0-4 
ldc_1:1.41.0-1#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
lomiri-location-service_3.4.1-2 
r-cran-regsem_1.9.5+dfsg-2 
rapmap_0.15.0+dfsg-5#976588 - rapmap: FTBFS on arm64 (when trying to build arch:all)
hugo_0.162.1-1 
openstructure_2.11.1-3#976491 - openstructure: FTBFS on arm64: E: Build killed with signal TERM after 150 minutes of inactivity
#1129279 - openstructure: FTBFS with Python 3.14: tests segfault
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
bitwuzla_0.8.2-2 
bpfilter_0.6.0-2 
bpftune_0.0~git20251206.4bcc284-1 
golang-github-coreos-discovery-etcd-io_2.0.0+git2019.04.19.git.78fb45d3c9-4 
openmha_4.18.0-3 
pwru_1.0.5+ds1-3 
pyfftw_0.15.0-1.1#917095 - python3-pyfftw: alignment tests fail on several arches
python-cx-oracle_8.3.0-3#1137169 - python-cx-oracle FTBFS: error: implicit declaration of function ‘dpiConn_beginDistribTrans’
rust-lv2-sys_2.0.0-1.1 
rust-subversion_0.1.0-1#1103725 - rust-subversion: FTBFS on many archs: expected raw pointer *const u8, found *const i8
clang-extract_0.0~git20260224.ac30d66-1 
hmmer_3.4+dfsg-3 
plotsauce_0~0.1-1#1072135 - plotsauce: FTBFS: plotsauce.qbs:11:5 Dependency 'zlib' not found for product 'plotsauce'.
pocl_6.0-7#1074261 - pocl: FTBFS on several arches due to failing tests
sphde_1.4.0-5.1#1048093 - sphde: Fails to build source after successful build
#1125773 - sphde: FTBFS on arm64: TERM after 150 minutes of inactivity
tulip_6.0.1+dfsg-3#793137 - tulip: FTBFS on armel and armhf
#1127042 - tulip: FTBFS with Python 3.14
rust-cee-scape_0.2.0-1 
cpptraj_5.1.0+dfsg-5#1035833 - cpptraj: FTBFS on \!amd64
#1091156 - cpptraj: FTBFS on arm64: make[2]: *** [Makefile:662: summary] Error 4
ddccontrol_2.2.0-1 
mpqc_2.3.1-22#1049570 - mpqc: Fails to build binary packages again after successful build
#1075293 - mpqc: ftbfs with GCC-14
vst3sdk_3.7.10.14+~4.13.3-5#1137285 - vst3sdk: frequent build hangs
abpoa_1.5.6-1 
iisignature_0.23+git20260603.447577b+ds-1 
simint_0.7-1#1137164 - simint: Baseline violation on x86 and FTBFS everywhere else
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
gambc_4.9.7+dfsg-1 
guile-2.2_2.2.7+1-9#1102305 - guile-2.2: FTBFS: flaky tests
#1105419 - guile-2.2: FTBFS with make --shuffle=reverse: make[1]: *** [debian/rules:259: override_dh_install-arch] Error 1 shuffle=reverse
supercollider-sc3-plugins_3.13.0~repack-1.1#1135490 - supercollider-sc3-plugins: FTBFS: /usr/include/SuperCollider/plugin_interface/SC_Unit.h:100:32: error: 'copyAndCastToTypeOfFirstArg' function uses 'auto' type specifier without trailing return type
bwa-mem2_2.3+ds-1 
drawterm_20240821-0.1#1126330 - drawterm: FTBFS on non x86: (cd posix-$arch && make) - "can't cd to posix-..."
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
cypari2_2.1.4-1#1081687 - Times out building on arm64
gpsshogi_0.7.0-3.3#1110591 - gpsshogi ftbfs with boost1.88
#1128157 - gpsshogi: FTBFS with boost 1.90
thin-provisioning-tools_1.1.0-5#1134124 - thin-provisioning-tools FTBFS with roaring 0.11
gpyfft_0.7.1-3#1120241 - gpyfft: FTBFS: AttributeError: module 'gpyfft.gpyfftlib' has no attribute 'CLFFT_DOUBLE'
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
botch_0.24-6.1#1131640 - botch: FTBFS: Oh no! 2 files would be reformatted, 37 files would be left unchanged.
broker_1.4.0+ds1-1#1037597 - broker: ftbfs with GCC-13
#1112758 - broker: FTBFS with CMake 4
elpi_2.0.7-3#1131646 - elpi: FTBFS: Error: The value valid_category has type (string -> [> `Error of string | `Ok of string ]) * string printer but an expression was expected of type 'a conv
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)
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
libhdate_1.6.02-2.1#1045497 - libhdate: Fails to build source after successful build
#1102875 - libhdate: add perl-xs-dev to Build-Depends
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]'
mumble_1.5.857-1#1136923 - mumble: FTBFS: CMake Error at /usr/lib/x86_64-linux-gnu/cmake/Ice-3.8/IceTargets.cmake:42 (add_executable): add_executable cannot create imported target "Ice::slice2cpp" because another target with the same name already exists.
python-nss_1.0.1-2#1045451 - python-nss: Fails to build source after successful build
#1080757 - python-nss: Missing Build-Depends on python3-setuptools
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
sccache_0.15.0+ds-1#1048427 - sccache: Fails to build source after successful build
#1138282 - sccache FTBFS: Unknown cache level: 'redis'
scram_0.16.2-4#1129858 - scram: FTBFS with boost 1.90
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
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
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
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 riscv64 with a patch pending
blender_4.3.2+dfsg-2#1101474 - blender: FTBFS: Please add loongarch64 support
epics-base_7.0.8.1+dfsg1-10#1079604 - epics-base:FTBFS:build failure (not support riscv64)
gulkan_0.15.1-2.3#1044984 - gulkan: Fails to build source after successful build
#1137168 - gulkan FTBFS: undefined references
libprelude_5.2.0-5.6#1081473 - FTBFS with Python 3.13
liferea_1.16.10+ds-2#1046450 - liferea: Fails to build source after successful build
mono_6.14.1+ds2-3#1045158 - mono: Fails to build source after successful build
pixmap_2.6.6-1#1054698 - pixmap: FTBFS: ././Pixmap.c:1145:(.text+0xe631): undefined reference to `xpmReadRgbNames'
scrollz_2.2.3-2#1066483 - scrollz: FTBFS: configure: error: Fatal: You must get working getaddrinfo() function.
sendmail_8.18.2-1#1138718 - sendmail: FTBFS with libnsl 2.0:
valentina_1.0.2+dfsg-1#1122981 - FTBFS: valentina fails to build on riscv64 with GCC 15.2