Source: ns3
Version: 3.41-1
Severity: important
Tags: patch pending sid trixie
Usertags: time-t

NOTICE: these changes must not be uploaded to unstable yet!

Dear maintainer,

As part of the 64-bit time_t transition required to support 32-bit
architectures in 2038 and beyond
(, we have identified
ns3 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 (, 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 ns3
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/12 CPU threads; PREEMPT)
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 ns3-3.41/debian/changelog ns3-3.41/debian/changelog
--- ns3-3.41/debian/changelog   2024-02-11 14:40:35.000000000 +0000
+++ ns3-3.41/debian/changelog   2024-02-25 08:40:43.000000000 +0000
@@ -1,3 +1,10 @@
+ns3 (3.41-1.1) experimental; urgency=medium
+  * Non-maintainer upload.
+  * Rename libraries for 64-bit time_t transition.
+ -- Steve Langasek <>  Sun, 25 Feb 2024 08:40:43 +0000
 ns3 (3.41-1) unstable; urgency=medium
   * New upstream release.
diff -Nru ns3-3.41/debian/control ns3-3.41/debian/control
--- ns3-3.41/debian/control     2024-02-11 14:40:35.000000000 +0000
+++ ns3-3.41/debian/control     2024-02-25 08:40:43.000000000 +0000
@@ -81,7 +81,10 @@
  This package contains manual, modules, tutorial and doxygen.
 # Note to self: when updating this, you also need to update the SONAME in the 
relevant patch
-Package: libns3.41
+Package: libns3.41t64
+Provides: ${t64:Provides}
+Replaces: libns3.41
+Breaks: libns3.41 (<< ${source:Version})
 Architecture: any
 Multi-Arch: same
 Depends: ${shlibs:Depends}, ${misc:Depends}
@@ -100,7 +103,7 @@
 Package: libns3-dev
 Architecture: any
-Depends: ${shlibs:Depends}, ${misc:Depends}, libns3.41 (= ${binary:Version}),
+Depends: ${shlibs:Depends}, ${misc:Depends}, libns3.41t64 (= 
 Breaks: ns3 (= 3.25+dfsg2-2)
 Section: libdevel
diff -Nru ns3-3.41/debian/libns3.41.install ns3-3.41/debian/libns3.41.install
--- ns3-3.41/debian/libns3.41.install   2024-02-11 14:40:35.000000000 +0000
+++ ns3-3.41/debian/libns3.41.install   1970-01-01 00:00:00.000000000 +0000
@@ -1 +0,0 @@
diff -Nru ns3-3.41/debian/libns3.41.lintian-overrides 
--- ns3-3.41/debian/libns3.41.lintian-overrides 2024-02-11 14:40:35.000000000 
+++ ns3-3.41/debian/libns3.41.lintian-overrides 1970-01-01 00:00:00.000000000 
@@ -1 +0,0 @@
-libns3.41: package-name-doesnt-match-sonames
diff -Nru ns3-3.41/debian/libns3.41t64.install 
--- ns3-3.41/debian/libns3.41t64.install        1970-01-01 00:00:00.000000000 
+++ ns3-3.41/debian/libns3.41t64.install        2024-02-11 14:40:35.000000000 
@@ -0,0 +1 @@
diff -Nru ns3-3.41/debian/libns3.41t64.lintian-overrides 
--- ns3-3.41/debian/libns3.41t64.lintian-overrides      1970-01-01 
00:00:00.000000000 +0000
+++ ns3-3.41/debian/libns3.41t64.lintian-overrides      2024-02-25 
08:40:43.000000000 +0000
@@ -0,0 +1,2 @@
+libns3.41t64: package-name-doesnt-match-sonames
+libns3.41t64: package-name-doesnt-match-sonames libns3.41

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