Bug#1062253: libcm256cc: NMU diff for 64-bit time_t transition
Source: libcm256cc
Version: 1.1.0-4
Severity: serious
Tags: patch pending
Justification: library ABI skew on upgrade
User: debian-arm@lists.debian.org
Usertags: time-t
Dear maintainer,
As part of the 64-bit time_t transition required to support 32-bit
architectures in 2038 and beyond
(https://wiki.debian.org/ReleaseGoals/64bit-time), we have identified
libcm256cc as a source package shipping runtime libraries whose ABI
either is affected by the change in size of time_t, or could not be
analyzed via abi-compliance-checker (and therefore to be on the safe
side we assume is affected).
To ensure that inconsistent combinations of libraries with their
reverse-dependencies are never installed together, it is necessary to
have a library transition, which is most easily done by renaming the
runtime library package.
Since turning on 64-bit time_t is being handled centrally through a change
to the default dpkg-buildflags (https://bugs.debian.org/1037136), it is
important that libraries affected by this ABI change all be uploaded close
together in time. Therefore I have prepared a 0-day NMU for libcm256cc
which will initially be uploaded to experimental if possible, then to
unstable after packages have cleared binary NEW.
Please find the patch for this NMU attached.
If you have any concerns about this patch, please reach out ASAP. Although
this package will be uploaded to experimental immediately, there will be a
period of several days before we begin uploads to unstable; so if information
becomes available that your package should not be included in the transition,
there is time for us to amend the planned uploads.
-- System Information:
Debian Release: trixie/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 6.5.0-14-generic (SMP w/12 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE
Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
diff -Nru libcm256cc-1.1.0/debian/changelog libcm256cc-1.1.0/debian/changelog
--- libcm256cc-1.1.0/debian/changelog 2023-07-21 04:20:22.000000000 +0000
+++ libcm256cc-1.1.0/debian/changelog 2024-01-31 20:20:39.000000000 +0000
@@ -1,3 +1,10 @@
+libcm256cc (1.1.0-4.1) experimental; urgency=medium
+
+ * Non-maintainer upload.
+ * Rename libraries for 64-bit time_t transition.
+
+ -- Steve Langasek <vorlon@debian.org> Wed, 31 Jan 2024 20:20:39 +0000
+
libcm256cc (1.1.0-4) unstable; urgency=medium
* Team upload.
diff -Nru libcm256cc-1.1.0/debian/control libcm256cc-1.1.0/debian/control
--- libcm256cc-1.1.0/debian/control 2023-07-21 04:20:22.000000000 +0000
+++ libcm256cc-1.1.0/debian/control 2024-01-31 20:20:39.000000000 +0000
@@ -13,7 +13,10 @@
Vcs-Browser: https://salsa.debian.org/debian-hamradio-team/libcm256cc
Vcs-Git: https://salsa.debian.org/debian-hamradio-team/libcm256cc.git
-Package: libcm256cc1
+Package: libcm256cc1t64
+Provides: ${t64:Provides}
+Replaces: libcm256cc1
+Breaks: libcm256cc1 (<< ${source:Version})
Section: libs
Architecture: amd64 arm64 armhf i386 hurd-i386 kfreebsd-amd64 kfreebsd-i386 x32
Multi-Arch: same
@@ -29,7 +32,7 @@
Architecture: amd64 arm64 armhf i386 hurd-i386 kfreebsd-amd64 kfreebsd-i386 x32
Multi-Arch: same
Depends:
- libcm256cc1 (= ${binary:Version}),
+ libcm256cc1t64 (= ${binary:Version}),
${misc:Depends},
Description: Fast GF(256) Cauchy MDS Block Erasure Codec in C++ (headers)
cm256cc is a simple library for erasure codes. From given data it generates
diff -Nru libcm256cc-1.1.0/debian/libcm256cc1.install libcm256cc-1.1.0/debian/libcm256cc1.install
--- libcm256cc-1.1.0/debian/libcm256cc1.install 2023-07-21 04:20:22.000000000 +0000
+++ libcm256cc-1.1.0/debian/libcm256cc1.install 1970-01-01 00:00:00.000000000 +0000
@@ -1 +0,0 @@
-usr/lib/*/*.so.*
diff -Nru libcm256cc-1.1.0/debian/libcm256cc1t64.install libcm256cc-1.1.0/debian/libcm256cc1t64.install
--- libcm256cc-1.1.0/debian/libcm256cc1t64.install 1970-01-01 00:00:00.000000000 +0000
+++ libcm256cc-1.1.0/debian/libcm256cc1t64.install 2023-07-21 04:20:22.000000000 +0000
@@ -0,0 +1 @@
+usr/lib/*/*.so.*
diff -Nru libcm256cc-1.1.0/debian/libcm256cc1t64.lintian-overrides libcm256cc-1.1.0/debian/libcm256cc1t64.lintian-overrides
--- libcm256cc-1.1.0/debian/libcm256cc1t64.lintian-overrides 1970-01-01 00:00:00.000000000 +0000
+++ libcm256cc-1.1.0/debian/libcm256cc1t64.lintian-overrides 2024-01-31 20:20:39.000000000 +0000
@@ -0,0 +1 @@
+libcm256cc1t64: package-name-doesnt-match-sonames libcm256cc1
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