Source: openturns Version: 1.26-2 Severity: serious Tags: ftbfs patch X-Debbugs-Cc: [email protected], Pierre Gruet <[email protected]> User: [email protected] Usertags: riscv64
https://buildd.debian.org/status/fetch.php?pkg=openturns&arch=riscv64&ver=1.26-2&stamp=1765410478&raw=0 ... [ 40%] Linking CXX shared module _func.so cd /build/reproducible-path/openturns-1.26/builddir/python/src && /usr/bin/cmake -E cmake_link_script CMakeFiles/func.dir/link.txt --verbose=1 E: Build killed with signal TERM after 720 minutes of inactivity The patch below does the following: 1. Debug information is useful, but it can take a surprising large part of the build time. As a workaround, reduce debug information on riscv64. 2. I have not verified whether this helps with the build hang on the real-hardware Alpha buildd, but let's try 1. also there. 3. What got the build killed was one linker invocation that took longer than 12 hours. mold is a much faster linker, use it on riscv64. The combination of 1. and 3. made the riscv64 build go from one linker invocation getting killed after 12 hours to a successful build after 9.5 hours. This is just a workaround: Faster buildd hardware would help with both. Item 1 is an issue where it is unclear whether improvements are possible, I'll gather data for a bug report for the linker issue in item 3. diff -Nru openturns-1.26/debian/control openturns-1.26/debian/control --- openturns-1.26/debian/control 2025-12-04 23:38:45.000000000 +0200 +++ openturns-1.26/debian/control 2025-12-09 12:08:02.000000000 +0200 @@ -28,6 +28,7 @@ libspectra-dev, libtbb-dev, libxml2-dev, + mold [riscv64], python3-dev, swig Standards-Version: 4.7.2 diff -Nru openturns-1.26/debian/rules openturns-1.26/debian/rules --- openturns-1.26/debian/rules 2025-12-04 23:11:11.000000000 +0200 +++ openturns-1.26/debian/rules 2025-12-09 12:08:02.000000000 +0200 @@ -23,6 +23,16 @@ test_discardflags := -E \\\"Dlib_.*|OptimizationAlgorithm_std\\\" endif +# build time reduction +ifneq (,$(filter $(DEB_HOST_ARCH), alpha riscv64)) + export DEB_CXXFLAGS_MAINT_APPEND += -g1 +endif + +# mold links faster, but is not yet mature on all architectures +ifneq (,$(filter $(DEB_HOST_ARCH), riscv64)) + export DEB_LDFLAGS_MAINT_APPEND += -fuse-ld=mold +endif + BUILD_DATE = $(shell date --utc --date="@$(SOURCE_DATE_EPOCH)" "+%a, %d %b %Y %H:%M:%S %z") %:
