Bug#1062521: lcm: NMU diff for 64-bit time_t transition
Source: lcm
Version: 1.3.1+repack1-7
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
lcm 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 lcm
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'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 6.5.0-15-generic (SMP w/8 CPU threads; PREEMPT)
Kernel taint flags: 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: unable to detect
diff -Nru lcm-1.3.1+repack1/debian/changelog lcm-1.3.1+repack1/debian/changelog
--- lcm-1.3.1+repack1/debian/changelog 2023-12-06 20:48:38.000000000 +0000
+++ lcm-1.3.1+repack1/debian/changelog 2024-02-01 18:25:16.000000000 +0000
@@ -1,3 +1,10 @@
+lcm (1.3.1+repack1-7.1) experimental; urgency=medium
+
+ * Non-maintainer upload.
+ * Rename libraries for 64-bit time_t transition.
+
+ -- Graham Inggs <ginggs@debian.org> Thu, 01 Feb 2024 18:25:16 +0000
+
lcm (1.3.1+repack1-7) unstable; urgency=medium
* QA upload.
diff -Nru lcm-1.3.1+repack1/debian/control lcm-1.3.1+repack1/debian/control
--- lcm-1.3.1+repack1/debian/control 2023-12-06 00:27:57.000000000 +0000
+++ lcm-1.3.1+repack1/debian/control 2024-02-01 18:25:16.000000000 +0000
@@ -12,7 +12,10 @@
Vcs-Browser: https://salsa.debian.org/debian/lcm
Rules-Requires-Root: no
-Package: liblcm1
+Package: liblcm1t64
+Provides: ${t64:Provides}
+Replaces: liblcm1
+Breaks: liblcm1 (<< ${source:Version})
Architecture: any
Depends: ${shlibs:Depends}, ${misc:Depends}
Description: Lightweight Communications and Marshalling
@@ -26,7 +29,7 @@
Package: liblcm-dev
Architecture: any
-Depends: liblcm1 (= ${binary:Version}), ${shlibs:Depends}, ${misc:Depends},
+Depends: liblcm1t64 (= ${binary:Version}), ${shlibs:Depends}, ${misc:Depends},
liblcm-bin
Description: Lightweight Communications and Marshalling
LCM is a set of libraries and tools for message passing and data marshalling,
@@ -39,7 +42,7 @@
Package: liblcm-bin
Architecture: any
-Depends: liblcm1 (= ${binary:Version}), ${shlibs:Depends}, ${misc:Depends}
+Depends: liblcm1t64 (= ${binary:Version}), ${shlibs:Depends}, ${misc:Depends}
Description: Lightweight Communications and Marshalling
LCM is a set of libraries and tools for message passing and data marshalling,
targeted at real-time systems where high-bandwidth and low latency are
@@ -51,7 +54,7 @@
Package: liblcm-java
Architecture: any
-Depends: liblcm1 (= ${binary:Version}), ${shlibs:Depends}, ${misc:Depends},
+Depends: liblcm1t64 (= ${binary:Version}), ${shlibs:Depends}, ${misc:Depends},
liblcm-bin
Description: Lightweight Communications and Marshalling
LCM is a set of libraries and tools for message passing and data marshalling,
diff -Nru lcm-1.3.1+repack1/debian/liblcm1.install lcm-1.3.1+repack1/debian/liblcm1.install
--- lcm-1.3.1+repack1/debian/liblcm1.install 2023-12-06 00:27:57.000000000 +0000
+++ lcm-1.3.1+repack1/debian/liblcm1.install 1970-01-01 00:00:00.000000000 +0000
@@ -1 +0,0 @@
-usr/lib/*/*.so.*
diff -Nru lcm-1.3.1+repack1/debian/liblcm1t64.install lcm-1.3.1+repack1/debian/liblcm1t64.install
--- lcm-1.3.1+repack1/debian/liblcm1t64.install 1970-01-01 00:00:00.000000000 +0000
+++ lcm-1.3.1+repack1/debian/liblcm1t64.install 2023-12-06 00:27:57.000000000 +0000
@@ -0,0 +1 @@
+usr/lib/*/*.so.*
diff -Nru lcm-1.3.1+repack1/debian/liblcm1t64.lintian-overrides lcm-1.3.1+repack1/debian/liblcm1t64.lintian-overrides
--- lcm-1.3.1+repack1/debian/liblcm1t64.lintian-overrides 1970-01-01 00:00:00.000000000 +0000
+++ lcm-1.3.1+repack1/debian/liblcm1t64.lintian-overrides 2024-02-01 18:25:16.000000000 +0000
@@ -0,0 +1 @@
+liblcm1t64: package-name-doesnt-match-sonames liblcm1
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