Source: libcrypto++
Version: 8.9.0-1
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
libcrypto++ 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 libcrypto++
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 libcrypto++-8.9.0/debian/changelog libcrypto++-8.9.0/debian/changelog
--- libcrypto++-8.9.0/debian/changelog  2023-10-02 15:51:51.000000000 +0000
+++ libcrypto++-8.9.0/debian/changelog  2024-01-31 21:07:36.000000000 +0000
@@ -1,3 +1,10 @@
+libcrypto++ (8.9.0-1.1) experimental; urgency=medium
+
+  * Non-maintainer upload.
+  * Rename libraries for 64-bit time_t transition.
+
+ -- Steve Langasek <vor...@debian.org>  Wed, 31 Jan 2024 21:07:36 +0000
+
 libcrypto++ (8.9.0-1) unstable; urgency=medium
 
   * New upstream release.
diff -Nru libcrypto++-8.9.0/debian/control libcrypto++-8.9.0/debian/control
--- libcrypto++-8.9.0/debian/control    2023-09-07 07:25:20.000000000 +0000
+++ libcrypto++-8.9.0/debian/control    2024-01-31 21:07:36.000000000 +0000
@@ -8,7 +8,10 @@
 Homepage: https://www.cryptopp.com
 Rules-Requires-Root: no
 
-Package: libcrypto++8
+Package: libcrypto++8t64
+Provides: ${t64:Provides}
+Replaces: libcrypto++8
+Breaks: libcrypto++8 (<< ${source:Version})
 Architecture: any
 Multi-Arch: same
 Section: libs
@@ -23,7 +26,7 @@
 Architecture: any
 Multi-Arch: same
 Section: libdevel
-Depends: libcrypto++8 (= ${binary:Version}), ${misc:Depends}
+Depends: libcrypto++8t64 (= ${binary:Version}), ${misc:Depends}
 Description: General purpose cryptographic library - C++ development
  Crypto++ is library for creating C++ programs which use cryptographic
  algorithms.  The library uses a Pipes & Filters architecture with heavy
diff -Nru libcrypto++-8.9.0/debian/libcrypto++8.install 
libcrypto++-8.9.0/debian/libcrypto++8.install
--- libcrypto++-8.9.0/debian/libcrypto++8.install       2015-09-06 
02:15:17.000000000 +0000
+++ libcrypto++-8.9.0/debian/libcrypto++8.install       1970-01-01 
00:00:00.000000000 +0000
@@ -1 +0,0 @@
-usr/lib/*/*.so.*
diff -Nru libcrypto++-8.9.0/debian/libcrypto++8.links.in 
libcrypto++-8.9.0/debian/libcrypto++8.links.in
--- libcrypto++-8.9.0/debian/libcrypto++8.links.in      2018-12-28 
12:18:20.000000000 +0000
+++ libcrypto++-8.9.0/debian/libcrypto++8.links.in      1970-01-01 
00:00:00.000000000 +0000
@@ -1 +0,0 @@
-/usr/lib/ARCH/libcrypto++.so.8 /usr/lib/ARCH/libcryptopp.so.8
diff -Nru libcrypto++-8.9.0/debian/libcrypto++8t64.install 
libcrypto++-8.9.0/debian/libcrypto++8t64.install
--- libcrypto++-8.9.0/debian/libcrypto++8t64.install    1970-01-01 
00:00:00.000000000 +0000
+++ libcrypto++-8.9.0/debian/libcrypto++8t64.install    2015-09-06 
02:15:17.000000000 +0000
@@ -0,0 +1 @@
+usr/lib/*/*.so.*
diff -Nru libcrypto++-8.9.0/debian/libcrypto++8t64.links.in 
libcrypto++-8.9.0/debian/libcrypto++8t64.links.in
--- libcrypto++-8.9.0/debian/libcrypto++8t64.links.in   1970-01-01 
00:00:00.000000000 +0000
+++ libcrypto++-8.9.0/debian/libcrypto++8t64.links.in   2018-12-28 
12:18:20.000000000 +0000
@@ -0,0 +1 @@
+/usr/lib/ARCH/libcrypto++.so.8 /usr/lib/ARCH/libcryptopp.so.8
diff -Nru libcrypto++-8.9.0/debian/libcrypto++8t64.lintian-overrides 
libcrypto++-8.9.0/debian/libcrypto++8t64.lintian-overrides
--- libcrypto++-8.9.0/debian/libcrypto++8t64.lintian-overrides  1970-01-01 
00:00:00.000000000 +0000
+++ libcrypto++-8.9.0/debian/libcrypto++8t64.lintian-overrides  2024-01-31 
21:07:36.000000000 +0000
@@ -0,0 +1 @@
+libcrypto++8t64: package-name-doesnt-match-sonames libcrypto++8
diff -Nru libcrypto++-8.9.0/debian/rules libcrypto++-8.9.0/debian/rules
--- libcrypto++-8.9.0/debian/rules      2023-07-07 15:20:07.000000000 +0000
+++ libcrypto++-8.9.0/debian/rules      2024-01-31 21:07:36.000000000 +0000
@@ -14,7 +14,7 @@
         export DEB_LDFLAGS_MAINT_APPEND= -latomic
 endif
 
-SONAME=8
+SONAME=8t64
 
 PREFIX=/usr
 LIBDIR=$(PREFIX)/lib/$(DEB_HOST_MULTIARCH)/

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