Source: lcalc
Version: 2.0.5-1
Severity: serious
Tags: patch pending
Justification: library ABI skew on upgrade
User: debian-...@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
lcalc 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 lcalc
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 lcalc-2.0.5/debian/changelog lcalc-2.0.5/debian/changelog
--- lcalc-2.0.5/debian/changelog        2021-12-22 09:02:12.000000000 +0000
+++ lcalc-2.0.5/debian/changelog        2024-02-01 18:23:20.000000000 +0000
@@ -1,3 +1,10 @@
+lcalc (2.0.5-1.1) experimental; urgency=medium
+
+  * Non-maintainer upload.
+  * Rename libraries for 64-bit time_t transition.
+
+ -- Graham Inggs <gin...@debian.org>  Thu, 01 Feb 2024 18:23:20 +0000
+
 lcalc (2.0.5-1) unstable; urgency=medium
 
   * Move to the math team.
diff -Nru lcalc-2.0.5/debian/control lcalc-2.0.5/debian/control
--- lcalc-2.0.5/debian/control  2021-12-22 09:02:12.000000000 +0000
+++ lcalc-2.0.5/debian/control  2024-02-01 18:23:20.000000000 +0000
@@ -12,14 +12,17 @@
 
 Package: lcalc
 Architecture: any
-Depends: liblfunction1 (= ${binary:Version}), ${shlibs:Depends}, 
${misc:Depends}
+Depends: liblfunction1t64 (= ${binary:Version}), ${shlibs:Depends}, 
${misc:Depends}
 Description: program for calculating with L-functions
  lcalc is a program for computing zeros and values of L-functions.
  Supported L-functions include the Riemann zeta function, the
  L-function of the Ramanujan delta function, and L-functions
  of elliptic curves defined over the rationals.
 
-Package: liblfunction1
+Package: liblfunction1t64
+Provides: ${t64:Provides}
+Replaces: liblfunction1
+Breaks: liblfunction1 (<< ${source:Version})
 Section: libs
 Architecture: any
 Multi-Arch: same
@@ -35,7 +38,7 @@
 Section: libdevel
 Architecture: any
 Multi-Arch: same
-Depends: ${misc:Depends}, liblfunction1 (= ${binary:Version})
+Depends: ${misc:Depends}, liblfunction1t64 (= ${binary:Version})
 Description: development files for liblfunction
  liblfunction is a library for computing zeros and values of L-functions.
  Supported L-functions include the Riemann zeta function, the
diff -Nru lcalc-2.0.5/debian/liblfunction1.install 
lcalc-2.0.5/debian/liblfunction1.install
--- lcalc-2.0.5/debian/liblfunction1.install    2021-12-22 09:02:12.000000000 
+0000
+++ lcalc-2.0.5/debian/liblfunction1.install    1970-01-01 00:00:00.000000000 
+0000
@@ -1 +0,0 @@
-usr/lib/*/*.so.*
diff -Nru lcalc-2.0.5/debian/liblfunction1.shlibs 
lcalc-2.0.5/debian/liblfunction1.shlibs
--- lcalc-2.0.5/debian/liblfunction1.shlibs     2021-12-22 09:02:12.000000000 
+0000
+++ lcalc-2.0.5/debian/liblfunction1.shlibs     1970-01-01 00:00:00.000000000 
+0000
@@ -1 +0,0 @@
-libLfunction 1 liblfunction1
diff -Nru lcalc-2.0.5/debian/liblfunction1t64.install 
lcalc-2.0.5/debian/liblfunction1t64.install
--- lcalc-2.0.5/debian/liblfunction1t64.install 1970-01-01 00:00:00.000000000 
+0000
+++ lcalc-2.0.5/debian/liblfunction1t64.install 2021-12-22 09:02:12.000000000 
+0000
@@ -0,0 +1 @@
+usr/lib/*/*.so.*
diff -Nru lcalc-2.0.5/debian/liblfunction1t64.lintian-overrides 
lcalc-2.0.5/debian/liblfunction1t64.lintian-overrides
--- lcalc-2.0.5/debian/liblfunction1t64.lintian-overrides       1970-01-01 
00:00:00.000000000 +0000
+++ lcalc-2.0.5/debian/liblfunction1t64.lintian-overrides       2024-02-01 
18:23:20.000000000 +0000
@@ -0,0 +1 @@
+liblfunction1t64: package-name-doesnt-match-sonames liblfunction1
diff -Nru lcalc-2.0.5/debian/liblfunction1t64.shlibs 
lcalc-2.0.5/debian/liblfunction1t64.shlibs
--- lcalc-2.0.5/debian/liblfunction1t64.shlibs  1970-01-01 00:00:00.000000000 
+0000
+++ lcalc-2.0.5/debian/liblfunction1t64.shlibs  2024-02-01 18:23:20.000000000 
+0000
@@ -0,0 +1 @@
+libLfunction 1 liblfunction1t64

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