Your message dated Tue, 10 Feb 2026 09:22:53 +0000
with message-id <[email protected]>
and subject line Bug#1124916: fixed in volk 3.3.0-1
has caused the Debian Bug report #1124916,
regarding volk: please build using the default build flags
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)
--
1124916: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1124916
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Source: volk
Version: 3.2.0-3
User: [email protected]
Usertags: hardening-buildflags
volk is not currently using the default build flags set by dpkg-buildflags(1).
The default flags are chosen for multiple reasons including security,
performance, reproducibility, adherence to standards, and error handling.
Please make sure that volk builds using the default build flags. blhc(1p)
and hardening-check(1) can be used to confirm that the issue is fixed.
In the general case, packages honoring CFLAGS, LDFLAGS, and other
similar environment variables get the default build flags for free
without the need for any work on the maintainer side. In the case of
volk, the flags are either ignored or overridden.
The most common reasons for this are:
Hand-written Makefiles
----------------------
Some upstream Makefiles either override the values of variables such as
CFLAGS and similar or do not use them at all. See:
https://wiki.debian.org/HardeningWalkthrough#Handwritten_Makefiles
Misconfigured build systems
---------------------------
If the upstream code uses autotools, CMake, or other popular build
systems, it usually requires no further modifications. If might however
be that some variables are hardcoded in some way.
In this CMake snippet, the value of CXXFLAGS is overwritten with "-O2":
set(CMAKE_CXX_FLAGS "-O2")
If the intention is to append to CXXFLAGS, one should use the following
instead:
set(CMAKE_CXX_FLAGS "-O2 ${CMAKE_CXX_FLAGS}")
See #655870 for a similar autotools example.
Very old debhelper usage
------------------------
Packages not using dh(1), or those using a debhelper compatibility level
less than 9, need to manually include /usr/share/dpkg/buildflags.mk in
order for the dpkg-buildflags variables to be set:
https://wiki.debian.org/Hardening#dpkg-buildflags
Flags hardcoded in debian/rules (either voluntarily or not)
-----------------------------------------------------------
Some packages voluntarily hardcode the values of CFLAGS and friends in
debian/rules, ignoring the defaults set by dpkg-buildflags(1).
Others attempt to append to the variables, but end up accidentally
overriding the defaults:
#!/usr/bin/make -f
export CFLAGS += -pipe -fPIC -Wall
%:
dh $@
Debhelper only sets CFLAGS if it is not set yet. In the example above,
when dh is invoked the value of CFLAGS is "-pipe -fPIC -Wall", hence the
hardened defaults are not used. The right way to append to CFLAGS is
using DEB_CFLAGS_MAINT_APPEND instead, as documented in
dpkg-buildflags(1).
For a detailed analysis of this issue, see https://hal.science/hal-05334704/
--- End Message ---
--- Begin Message ---
Source: volk
Source-Version: 3.3.0-1
Done: A. Maitland Bottoms <[email protected]>
We believe that the bug you reported is fixed in the latest version of
volk, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
A. Maitland Bottoms <[email protected]> (supplier of updated volk package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Sun, 08 Feb 2026 12:27:04 -0500
Source: volk
Binary: libvolk-bin libvolk-bin-dbgsym libvolk-dev libvolk-doc libvolk3.3
libvolk3.3-dbgsym
Architecture: source amd64 all
Version: 3.3.0-1
Distribution: experimental
Urgency: medium
Maintainer: A. Maitland Bottoms <[email protected]>
Changed-By: A. Maitland Bottoms <[email protected]>
Description:
libvolk-bin - vector optimized runtime tools
libvolk-dev - vector optimized function headers
libvolk-doc - vector optimized library documentation
libvolk3.3 - vector optimized functions
Closes: 1124916
Changes:
volk (3.3.0-1) experimental; urgency=medium
.
* New upstream release.
New kernels
volk_16i_x2_add_saturated_16i
volk_16u_x2_add_saturated_16u
volk_32f_sincos_32f_x2.h
volk_64f_x2_dot_prod_64f.h
volk_8i_x2_add_saturated_8i.h
volk_8u_x2_add_saturated_8u.h
Improvements to a lot of kernels
RiscV kernels are further improved and fixed
RVV index_max/min kernels always return the correct (first) index now
New AVX512 implementations for a lot of kernels
Add more NEON kernels with better accuracy
Documentation
Working on auto-publishing latest docs
More clarification on our software library dependencies policy
Improved documentation on the underlying algorithms that are used
Code quality
cx-limited-range: Reduce scope of compile feature
Fully rely on std::filesystem
(we used to have a boost::filesystem fallback)
Align CMake auto-format with GNU Radio
Update to modern PIC enablement
Fix NEON compile checks
Update code style in more places
tighter
CI
Add -Werror flag to CI for C compilation
Remove obsolete CI, add new CI
Fix obsolete MacOS Intel CI
Tests
Add specialized test suite for the rotator kernel
Improved usability with gtest
Tighter error bounds for a lot of implementations
Usability
new performance test output
fastest implementation is marked with a star
speed up vs. generic implementation is printed
test "heat up" added
[A. Maitland Bottoms]
* Standards-Version 4.7.3 (no changes)
* upload to experimental for library soversion change.
* export Debian build flags (Closes: #1124916)
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