Source: flightcrew
Version: 0.9.3+dfsg-2
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
flightcrew 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 flightcrew
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/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_WARN, TAINT_OOT_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
diff -Nru flightcrew-0.9.3+dfsg/debian/changelog 
flightcrew-0.9.3+dfsg/debian/changelog
--- flightcrew-0.9.3+dfsg/debian/changelog      2023-12-20 20:01:55.000000000 
+0000
+++ flightcrew-0.9.3+dfsg/debian/changelog      2024-02-02 04:00:35.000000000 
+0000
@@ -1,3 +1,10 @@
+flightcrew (0.9.3+dfsg-2.1) experimental; urgency=medium
+
+  * Non-maintainer upload.
+  * Rename libraries for 64-bit time_t transition.
+
+ -- Michael Hudson-Doyle <mwhud...@debian.org>  Fri, 02 Feb 2024 04:00:35 +0000
+
 flightcrew (0.9.3+dfsg-2) unstable; urgency=medium
 
   [ Francois Mazen ]
diff -Nru flightcrew-0.9.3+dfsg/debian/control 
flightcrew-0.9.3+dfsg/debian/control
--- flightcrew-0.9.3+dfsg/debian/control        2023-12-20 20:01:55.000000000 
+0000
+++ flightcrew-0.9.3+dfsg/debian/control        2024-02-02 04:00:35.000000000 
+0000
@@ -36,7 +36,10 @@
  to validate epub files, and may be generally useful for other epub
  creation utilities.
 
-Package: libflightcrew0v5
+Package: libflightcrew0t64
+Provides: ${t64:Provides}
+X-Time64-Compat: libflightcrew0v5
+Breaks: libflightcrew0v5 (<< ${source:Version})
 Architecture: any
 Section: libs
 Depends:
@@ -44,7 +47,7 @@
  ${shlibs:Depends},
 Conflicts:
  libflightcrew0,
-Replaces:
+Replaces:libflightcrew0v5, 
  libflightcrew0,
 Description: C++ library for epub validation
  FlightCrew is an epub validator written in C++. It is used by sigil
@@ -57,8 +60,8 @@
 Architecture: all
 Section: libdevel
 Depends:
- libflightcrew0v5 (<< ${source:Version}.1~),
- libflightcrew0v5 (>= ${source:Version}),
+ libflightcrew0t64 (<< ${source:Version}.1~),
+ libflightcrew0t64 (>= ${source:Version}),
  libboost-exception-dev,
  ${misc:Depends},
 Description: C++ library development filesfor epub validation
diff -Nru flightcrew-0.9.3+dfsg/debian/libflightcrew0t64.install 
flightcrew-0.9.3+dfsg/debian/libflightcrew0t64.install
--- flightcrew-0.9.3+dfsg/debian/libflightcrew0t64.install      1970-01-01 
00:00:00.000000000 +0000
+++ flightcrew-0.9.3+dfsg/debian/libflightcrew0t64.install      2023-12-17 
21:03:08.000000000 +0000
@@ -0,0 +1 @@
+/usr/lib/libFlightCrew.so.*
diff -Nru flightcrew-0.9.3+dfsg/debian/libflightcrew0t64.lintian-overrides 
flightcrew-0.9.3+dfsg/debian/libflightcrew0t64.lintian-overrides
--- flightcrew-0.9.3+dfsg/debian/libflightcrew0t64.lintian-overrides    
1970-01-01 00:00:00.000000000 +0000
+++ flightcrew-0.9.3+dfsg/debian/libflightcrew0t64.lintian-overrides    
2024-02-02 04:00:35.000000000 +0000
@@ -0,0 +1 @@
+libflightcrew0t64: package-name-doesnt-match-sonames libflightcrew0v5
diff -Nru flightcrew-0.9.3+dfsg/debian/libflightcrew0v5.install 
flightcrew-0.9.3+dfsg/debian/libflightcrew0v5.install
--- flightcrew-0.9.3+dfsg/debian/libflightcrew0v5.install       2023-12-17 
21:03:08.000000000 +0000
+++ flightcrew-0.9.3+dfsg/debian/libflightcrew0v5.install       1970-01-01 
00:00:00.000000000 +0000
@@ -1 +0,0 @@
-/usr/lib/libFlightCrew.so.*

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