Package: src:cmake
Version: 3.16.3-2
Severity: important
Tags: upstream
Control: clone -1 -2
Control: reassign -2 debhelper
Control: retitle -2 debhelper: Do not set CMAKE_AUTOGEN_VERBOSE=NO
Control: severity -2 normal
Control: found -2 12.10
Control: found -2 13
Control: affects -1 debhelper
Dear maintainers,
CMake compiles /usr/share/cmake-*/Modules/CMakeCXXCompilerABI.cpp during the
build of a C++ projects, several times, and ignoring the CXXFLAGS.
This behaviour is likely defined in
/usr/share/cmake-*/Modules/{CMakeTestCXXCompiler,Compiler/{Intel,GNU,QCC}}.cmake
In addition to being a (presumably benign?) correctness issue, this is about to
become a notable inconvenience for maintainers of C++ packages in Debian whose
buildsystem is CMake:
- starting in debhelper 12.10 (uploaded 2020-03-24), CMAKE_AUTOGEN_VERBOSE=ON
is set by default for all packages that use CMake ;
- CMake then logs the compiler invocations for CMakeCXXCompilerABI.cpp;
- blhc (build log hardening checker) raises (correctly so) an error,
as C++ code was built without the required flags.
- the blhc failure is surfaced to the maintainer in many places:
Salsa CI, tracker.d.o, qa.d.o, ...
After discussion with nthykier, he suggested rolling back the change in dh
(commit 2f88a603001a32b596389b8b031489960e30a9e9) until this issue is fixed
in CMake. As such I am leaving a copy of this bug report against dh.
Many thanks to Andreas Noteng, whose package scantailor-advanced (which I
am sponsoring) is where I first encountered the issue, and who bissected
the problem down to that specific commit in debhelper.
Best,
nicoo
-- System Information:
Debian Release: bullseye/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 5.5.0-2-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8
(charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages cmake depends on:
ii cmake-data 3.16.3-2
ii libarchive13 3.4.0-2
ii libc6 2.30-4
ii libcurl4 7.68.0-1
ii libexpat1 2.2.9-1
ii libgcc-s1 10-20200418-1
ii libjsoncpp1 1.7.4-3.1
ii librhash0 1.3.9-1
ii libstdc++6 10-20200418-1
ii libuv1 1.35.0-2
ii procps 2:3.3.16-4
ii zlib1g 1:1.2.11.dfsg-2
Versions of packages cmake recommends:
ii gcc 4:9.2.1-3.1
ii make 4.2.1-1.2
Versions of packages cmake suggests:
pn cmake-doc <none>
ii ninja-build 1.10.0-1
-- no debconf information
