Bug#1121341: siconos FTBFS on riscv64: Build killed with signal TERM after 720 minutes of inactivity

[Adrian Bunk]

Source: siconos
Version: 4.4.0+dfsg-5
Severity: serious
Tags: ftbfs patch
X-Debbugs-Cc: debian-riscv at lists.debian.org
User: debian-riscv at lists.debian.org
Usertags: riscv64

https://buildd.debian.org/status/fetch.php?pkg=siconos&arch=riscv64&ver=4.4.0%2Bdfsg-5&stamp=1763696177&raw=0

...
[ 88%] Building CXX object kernel/swig/CMakeFiles/_kernel.dir/__/__/wrap/siconos/kernelPYTHON_wrap.cxx.o
cd /build/reproducible-path/siconos-4.4.0+dfsg/obj-riscv64-linux-gnu/kernel/swig && /usr/bin/c++ -D_kernel_EXPORTS -I/build/reproducible-path/siconos-4.4.0+dfsg/obj-riscv64-linux-gnu -I/build/reproducible-path/siconos-4.4.0+dfsg/wrap/swig -I/build/reproducible-path/siconos-4.4.0+dfsg/obj-riscv64-linux-gnu/wrap/siconos -I/build/reproducible-path/siconos-4.4.0+dfsg/kernel/swig -I/build/reproducible-path/siconos-4.4.0+dfsg/io/src -I/build/reproducible-path/siconos-4.4.0+dfsg/io/src/mechanics -I/build/reproducible-path/siconos-4.4.0+dfsg/io/src/serialization -I/build/reproducible-path/siconos-4.4.0+dfsg/obj-riscv64-linux-gnu/io -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/. -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/tools -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/tools/InterfaceToPathFerris -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/tools/internal -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/AVI -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/LCP -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/MLCP -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/SOCP -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/QP -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/Relay -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/FrictionContact -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/FrictionContact/Generated -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/NCP -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/MCP -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/GenericMechanical -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src/VI -I/build/reproducible-path/siconos-4.4.0+dfsg/externals/tools -I/build/reproducible-path/siconos-4.4.0+dfsg/kernel/src/. -I/build/reproducible-path/siconos-4.4.0+dfsg/kernel/src/utils -I/build/reproducible-path/siconos-4.4.0+dfsg/kernel/src/utils/SiconosAlgebra -I/build/reproducible-path/siconos-4.4.0+dfsg/kernel/src/utils/SiconosMemory -I/build/reproducible-path/siconos-4.4.0+dfsg/kernel/src/utils/SiconosSharedLibrary -I/build/reproducible-path/siconos-4.4.0+dfsg/kernel/src/utils/SiconosTools -I/build/reproducible-path/siconos-4.4.0+dfsg/kernel/src/utils/ProgressBar -I/build/reproducible-path/siconos-4.4.0+dfsg/kernel/src/plugin -I/build/reproducible-path/siconos-4.4.0+dfsg/kernel/src/modelingTools -I/build/reproducible-path/siconos-4.4.0+dfsg/kernel/src/simulationTools -I/build/reproducible-path/siconos-4.4.0+dfsg/numerics/src -isystem /usr/include/python3.13 -isystem /usr/lib/riscv64-linux-gnu/python3-numpy/numpy/_core/include -isystem /usr/include/suitesparse -g -O2 -ffile-prefix-map=/build/reproducible-path/siconos-4.4.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=gnu++17 -fPIC -fno-strict-aliasing -MD -MT kernel/swig/CMakeFiles/_kernel.dir/__/__/wrap/siconos/kernelPYTHON_wrap.cxx.o -MF CMakeFiles/_kernel.dir/__/__/wrap/siconos/kernelPYTHON_wrap.cxx.o.d -o CMakeFiles/_kernel.dir/__/__/wrap/siconos/kernelPYTHON_wrap.cxx.o -c /build/reproducible-path/siconos-4.4.0+dfsg/obj-riscv64-linux-gnu/wrap/siconos/kernelPYTHON_wrap.cxx
In file included from /build/reproducible-path/siconos-4.4.0+dfsg/obj-riscv64-linux-gnu/wrap/siconos/kernelPYTHON_wrap.cxx:5414:
/build/reproducible-path/siconos-4.4.0+dfsg/kernel/src/utils/SiconosAlgebra/SiconosVectorIterator.hpp:30:17: warning: ‘template<class _Category, class _Tp, class _Distance, class _Pointer, class _Reference> struct std::iterator’ is deprecated [-Wdeprecated-declarations]
   30 |   : public std::iterator<std::forward_iterator_tag, T>
      |                 ^~~~~~~~
In file included from /usr/include/c++/15/bits/stl_algobase.h:65,
                 from /usr/include/c++/15/bits/specfun.h:43,
                 from /usr/include/c++/15/cmath:3913,
                 from /usr/include/c++/15/math.h:36,
                 from /usr/include/python3.13/Python.h:23,
                 from /build/reproducible-path/siconos-4.4.0+dfsg/obj-riscv64-linux-gnu/wrap/siconos/kernelPYTHON_wrap.cxx:203:
/usr/include/c++/15/bits/stl_iterator_base_types.h:129:34: note: declared here
  129 |     struct _GLIBCXX17_DEPRECATED iterator
      |                                  ^~~~~~~~
E: Build killed with signal TERM after 720 minutes of inactivity


Workaround:

--- siconos-4.4.0+dfsg/debian/rules	2025-11-19 17:55:47.000000000 +0200
+++ siconos-4.4.0+dfsg/debian/rules	2025-11-22 21:13:29.000000000 +0200
@@ -7,6 +7,11 @@
 
 export DEB_BUILD_MAINT_OPTIONS=hardening=+bindnow
 
+# avoid builds timing out on the buildds
+ifneq (,$(filter $(DEB_HOST_ARCH), riscv64))
+  export DEB_CXXFLAGS_MAINT_APPEND += -g1
+endif
+
 # If SALSABUILD is set we want to drop debug info as well
 ifneq ($(SALSABUILD),)
   export DEB_CXXFLAGS_MAINT_APPEND += -g0