Package: g++-9 Version: 9.2.1-7 Severity: important Tags: ftbfs Justification: fails to build from source (but built successfully in the past)
Recently I uploaded a new package of texworks to unstable. I noticed that the new package fails to build on sh4 [1], meanwhile it built fine in the past [2]. The relevant error message is (AFAICT): <snip> -- Detecting CXX compile features CMake Error: Generator: execution of make failed. Make command was: "/usr/bin/make" "cmTC_bf641/fast" -- Detecting CXX compile features - failed -- Git commit info updated CMake Warning (dev) at CMakeLists.txt:139 (OPTION): Policy CMP0077 is not set: option() honors normal variables. Run "cmake --help-policy CMP0077" for policy details. Use the cmake_policy command to set the policy and suppress this warning. For compatibility with older versions of CMake, option is clearing the normal variable 'BUILD_SHARED_LIBS'. This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at CMakeLists.txt:146 (OPTION): Policy CMP0077 is not set: option() honors normal variables. Run "cmake --help-policy CMP0077" for policy details. Use the cmake_policy command to set the policy and suppress this warning. For compatibility with older versions of CMake, option is clearing the normal variable 'BUILD_SHARED_PLUGINS'. This warning is for project developers. Use -Wno-dev to suppress it. </snip> The only change in the new package is the python3 adaption, which should be not relevant for that error message. The only significant change in the build tools is that we now use g++-9 instead of g++-8. I suspect this is a regression in g++-9. Hilmar [1] https://buildd.debian.org/status/fetch.php?pkg=texworks&arch=sh4&ver=0.6.3-3&stamp=1567811521&raw=0 [2] https://buildd.debian.org/status/fetch.php?pkg=texworks&arch=sh4&ver=0.6.3-2&stamp=1562792310&raw=0 -- System Information: Debian Release: bullseye/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 5.2.0-2-amd64 (SMP w/1 CPU core) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages g++-9 depends on: ii gcc-9 9.2.1-7 ii gcc-9-base 9.2.1-7 ii libc6 2.28-10 ii libgmp10 2:6.1.2+dfsg-4 ii libisl19 0.20-2 ii libmpc3 1.1.0-1 ii libmpfr6 4.0.2-1 ii libstdc++-9-dev 9.2.1-7 ii zlib1g 1:1.2.11.dfsg-1+b1 g++-9 recommends no packages. Versions of packages g++-9 suggests: pn g++-9-multilib <none> pn gcc-9-doc <none> pn libstdc++6-9-dbg <none> -- no debconf information
