Source: gnucobol4
Version: 4.0~early~20200606-6
Severity: serious
Tags: patch pending
Justification: library ABI skew on upgrade
User: [email protected]
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
gnucobol4 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 gnucobol4
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')
Architecture: amd64 (x86_64)

Kernel: Linux 6.5.0-14-generic (SMP w/8 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, 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 gnucobol4-4.0~early~20200606/debian/changelog 
gnucobol4-4.0~early~20200606/debian/changelog
--- gnucobol4-4.0~early~20200606/debian/changelog       2021-09-14 
19:23:38.000000000 +0000
+++ gnucobol4-4.0~early~20200606/debian/changelog       2024-01-31 
15:37:43.000000000 +0000
@@ -1,3 +1,10 @@
+gnucobol4 (4.0~early~20200606-6.1) experimental; urgency=medium
+
+  * Non-maintainer upload.
+  * Rename libraries for 64-bit time_t transition.
+
+ -- Lukas Märdian <[email protected]>  Wed, 31 Jan 2024 15:37:43 +0000
+
 gnucobol4 (4.0~early~20200606-6) unstable; urgency=medium
 
   * debian/control: bump standard to 4.6.0 (no changes)
diff -Nru gnucobol4-4.0~early~20200606/debian/control 
gnucobol4-4.0~early~20200606/debian/control
--- gnucobol4-4.0~early~20200606/debian/control 2021-09-14 19:23:38.000000000 
+0000
+++ gnucobol4-4.0~early~20200606/debian/control 2024-01-31 15:37:43.000000000 
+0000
@@ -48,9 +48,11 @@
  GnuCOBOL passes over 9600 of the NIST COBOL 85 test suite tests and over 750
  internal checks during build.
 
-Package: libcob5
+Package: libcob5t64
+Provides: ${t64:Provides}
+Breaks: libcob5 (<< ${source:Version})
 Section: libs
-Replaces: libcob4
+Replaces: libcob5, libcob4
 Architecture: any
 Multi-Arch: same
 Depends: ${shlibs:Depends}, ${misc:Depends}
@@ -68,7 +70,7 @@
 Multi-Arch: same
 Replaces: libcob4-dev
 Breaks: libcob4-dev
-Depends: ${misc:Depends}, libcob5 (=${binary:Version})
+Depends: ${misc:Depends}, libcob5t64 (=${binary:Version})
 Description: COBOL compiler - development files
  This package contains the development files for gnucobol.
  .
diff -Nru gnucobol4-4.0~early~20200606/debian/libcob5.dirs 
gnucobol4-4.0~early~20200606/debian/libcob5.dirs
--- gnucobol4-4.0~early~20200606/debian/libcob5.dirs    2020-07-12 
03:26:15.000000000 +0000
+++ gnucobol4-4.0~early~20200606/debian/libcob5.dirs    1970-01-01 
00:00:00.000000000 +0000
@@ -1 +0,0 @@
-usr/lib
diff -Nru gnucobol4-4.0~early~20200606/debian/libcob5.install 
gnucobol4-4.0~early~20200606/debian/libcob5.install
--- gnucobol4-4.0~early~20200606/debian/libcob5.install 2020-07-12 
03:26:15.000000000 +0000
+++ gnucobol4-4.0~early~20200606/debian/libcob5.install 1970-01-01 
00:00:00.000000000 +0000
@@ -1 +0,0 @@
-usr/lib/*/lib*.so.*
diff -Nru gnucobol4-4.0~early~20200606/debian/libcob5t64.dirs 
gnucobol4-4.0~early~20200606/debian/libcob5t64.dirs
--- gnucobol4-4.0~early~20200606/debian/libcob5t64.dirs 1970-01-01 
00:00:00.000000000 +0000
+++ gnucobol4-4.0~early~20200606/debian/libcob5t64.dirs 2020-07-12 
03:26:15.000000000 +0000
@@ -0,0 +1 @@
+usr/lib
diff -Nru gnucobol4-4.0~early~20200606/debian/libcob5t64.install 
gnucobol4-4.0~early~20200606/debian/libcob5t64.install
--- gnucobol4-4.0~early~20200606/debian/libcob5t64.install      1970-01-01 
00:00:00.000000000 +0000
+++ gnucobol4-4.0~early~20200606/debian/libcob5t64.install      2020-07-12 
03:26:15.000000000 +0000
@@ -0,0 +1 @@
+usr/lib/*/lib*.so.*
diff -Nru gnucobol4-4.0~early~20200606/debian/libcob5t64.lintian-overrides 
gnucobol4-4.0~early~20200606/debian/libcob5t64.lintian-overrides
--- gnucobol4-4.0~early~20200606/debian/libcob5t64.lintian-overrides    
1970-01-01 00:00:00.000000000 +0000
+++ gnucobol4-4.0~early~20200606/debian/libcob5t64.lintian-overrides    
2024-01-31 15:37:43.000000000 +0000
@@ -0,0 +1 @@
+libcob5t64: package-name-doesnt-match-sonames libcob5

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