Source: h2o
Version: 2.2.5+dfsg2-8
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
h2o 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 h2o
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 h2o-2.2.5+dfsg2/debian/changelog h2o-2.2.5+dfsg2/debian/changelog
--- h2o-2.2.5+dfsg2/debian/changelog    2023-10-20 04:24:36.000000000 +0000
+++ h2o-2.2.5+dfsg2/debian/changelog    2024-02-01 05:31:58.000000000 +0000
@@ -1,3 +1,10 @@
+h2o (2.2.5+dfsg2-8.1) experimental; urgency=medium
+
+  * Non-maintainer upload.
+  * Rename libraries for 64-bit time_t transition.
+
+ -- Graham Inggs <gin...@debian.org>  Thu, 01 Feb 2024 05:31:58 +0000
+
 h2o (2.2.5+dfsg2-8) unstable; urgency=high
 
   * [b195d95] CVE-2023-44487. Fix http2-issue. (Closes: #1054232)
diff -Nru h2o-2.2.5+dfsg2/debian/control h2o-2.2.5+dfsg2/debian/control
--- h2o-2.2.5+dfsg2/debian/control      2023-10-20 04:24:23.000000000 +0000
+++ h2o-2.2.5+dfsg2/debian/control      2024-02-01 05:31:58.000000000 +0000
@@ -44,7 +44,10 @@
  ground-up, the server takes full advantage of HTTP/2 features including
  prioritized content serving and server push.
 
-Package: libh2o0.13
+Package: libh2o0.13t64
+Provides: ${t64:Provides}
+Replaces: libh2o0.13
+Breaks: libh2o0.13 (<< ${source:Version})
 Architecture: any
 Multi-Arch: same
 Section: libs
@@ -61,7 +64,10 @@
  This package provides the H2O library compiled with libuv which allows you to
  link your own software to H2O
 
-Package: libh2o-evloop0.13
+Package: libh2o-evloop0.13t64
+Provides: ${t64:Provides}
+Replaces: libh2o-evloop0.13
+Breaks: libh2o-evloop0.13 (<< ${source:Version})
 Architecture: any
 Multi-Arch: same
 Section: libs
@@ -82,7 +88,7 @@
 Architecture: any
 Section: libdevel
 Depends: ${misc:Depends},
-         libh2o0.13 (= ${binary:Version}),
+         libh2o0.13t64 (= ${binary:Version}),
          libh2o-dev-common (= ${source:Version})
 Description: dev helpers of the H2O library compiled with libuv
  H2O is a new generation HTTP server that provides quicker response to users
@@ -98,7 +104,7 @@
 Architecture: any
 Section: libdevel
 Depends: ${misc:Depends},
-         libh2o-evloop0.13 (= ${binary:Version}),
+         libh2o-evloop0.13t64 (= ${binary:Version}),
          libh2o-dev-common (= ${source:Version})
 Description: dev helpers of the H2O library compiled with its own event loop
  H2O is a new generation HTTP server that provides quicker response to users
@@ -115,7 +121,7 @@
 Multi-Arch: foreign
 Section: libdevel
 Depends: ${misc:Depends},
-         libh2o0.13 (>= ${source:Version}) | libh2o-evloop0.13 (>= 
${source:Version})
+         libh2o0.13t64 (>= ${source:Version}) | libh2o-evloop0.13t64 (>= 
${source:Version})
 Description: H2O library headers
  H2O is a new generation HTTP server that provides quicker response to users
  with less CPU utilization when compared to older generation of web servers.
diff -Nru h2o-2.2.5+dfsg2/debian/libh2o-evloop0.13.install 
h2o-2.2.5+dfsg2/debian/libh2o-evloop0.13.install
--- h2o-2.2.5+dfsg2/debian/libh2o-evloop0.13.install    2020-05-03 
20:12:52.000000000 +0000
+++ h2o-2.2.5+dfsg2/debian/libh2o-evloop0.13.install    1970-01-01 
00:00:00.000000000 +0000
@@ -1 +0,0 @@
-usr/lib/*/libh2o-evloop.so.0*
diff -Nru h2o-2.2.5+dfsg2/debian/libh2o-evloop0.13t64.install 
h2o-2.2.5+dfsg2/debian/libh2o-evloop0.13t64.install
--- h2o-2.2.5+dfsg2/debian/libh2o-evloop0.13t64.install 1970-01-01 
00:00:00.000000000 +0000
+++ h2o-2.2.5+dfsg2/debian/libh2o-evloop0.13t64.install 2020-05-03 
20:12:52.000000000 +0000
@@ -0,0 +1 @@
+usr/lib/*/libh2o-evloop.so.0*
diff -Nru h2o-2.2.5+dfsg2/debian/libh2o-evloop0.13t64.lintian-overrides 
h2o-2.2.5+dfsg2/debian/libh2o-evloop0.13t64.lintian-overrides
--- h2o-2.2.5+dfsg2/debian/libh2o-evloop0.13t64.lintian-overrides       
1970-01-01 00:00:00.000000000 +0000
+++ h2o-2.2.5+dfsg2/debian/libh2o-evloop0.13t64.lintian-overrides       
2024-02-01 05:31:58.000000000 +0000
@@ -0,0 +1 @@
+libh2o-evloop0.13t64: package-name-doesnt-match-sonames libh2o-evloop0.13
diff -Nru h2o-2.2.5+dfsg2/debian/libh2o0.13.install 
h2o-2.2.5+dfsg2/debian/libh2o0.13.install
--- h2o-2.2.5+dfsg2/debian/libh2o0.13.install   2020-05-03 20:12:52.000000000 
+0000
+++ h2o-2.2.5+dfsg2/debian/libh2o0.13.install   1970-01-01 00:00:00.000000000 
+0000
@@ -1 +0,0 @@
-usr/lib/*/libh2o.so.0*
diff -Nru h2o-2.2.5+dfsg2/debian/libh2o0.13t64.install 
h2o-2.2.5+dfsg2/debian/libh2o0.13t64.install
--- h2o-2.2.5+dfsg2/debian/libh2o0.13t64.install        1970-01-01 
00:00:00.000000000 +0000
+++ h2o-2.2.5+dfsg2/debian/libh2o0.13t64.install        2020-05-03 
20:12:52.000000000 +0000
@@ -0,0 +1 @@
+usr/lib/*/libh2o.so.0*
diff -Nru h2o-2.2.5+dfsg2/debian/libh2o0.13t64.lintian-overrides 
h2o-2.2.5+dfsg2/debian/libh2o0.13t64.lintian-overrides
--- h2o-2.2.5+dfsg2/debian/libh2o0.13t64.lintian-overrides      1970-01-01 
00:00:00.000000000 +0000
+++ h2o-2.2.5+dfsg2/debian/libh2o0.13t64.lintian-overrides      2024-02-01 
05:31:58.000000000 +0000
@@ -0,0 +1 @@
+libh2o0.13t64: package-name-doesnt-match-sonames libh2o0.13

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