[Bug 2065280] Re: libsnappy-dev: Ambiguity in Compress method signatures causes FTBFS in ceph

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** Changed in: snappy (Debian)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/2065280

Title:
  libsnappy-dev: Ambiguity in Compress method signatures causes FTBFS in
  ceph

Status in snappy package in Ubuntu:
  Triaged
Status in snappy package in Debian:
  Fix Released

Bug description:
  Imported from Debian bug http://bugs.debian.org/1070785:

  Package: libsnappy-dev
  Version: 1.2.0-2
  Severity: important
  Tags: ftbfs
  X-Debbugs-Cc: james.page at ubuntu.com

  Dear Maintainer,

  The patch added to restore older API signatures to resolve Bug 1070217
  creates ambiguity in the method signatures resulting in FTBFS in at
  least the ceph package:

  In file included from /<<PKGBUILDDIR>>/src/compressor/snappy/CompressionPluginSnappy.h:20,
                   from /<<PKGBUILDDIR>>/src/compressor/snappy/CompressionPluginSnappy.cc:20:
  /<<PKGBUILDDIR>>/src/compressor/snappy/SnappyCompressor.h: In member function ‘virtual int SnappyCompressor::compress(const ceph::bufferlist&, ceph::bufferlist&, std::optional<int>&)’:
  /<<PKGBUILDDIR>>/src/compressor/snappy/SnappyCompressor.h:68:21: error: call of overloaded ‘Compress(BufferlistSource*, snappy::UncheckedByteArraySink*)’ is ambiguous
     68 |     snappy::Compress(&source, &sink);
        |     ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
  In file included from /<<PKGBUILDDIR>>/src/compressor/snappy/SnappyCompressor.h:18:
  /usr/include/snappy.h:81:10: note: candidate: ‘size_t snappy::Compress(Source*, Sink*)’
     81 |   size_t Compress(Source* reader, Sink* writer);
        |          ^~~~~~~~
  /usr/include/snappy.h:82:10: note: candidate: ‘size_t snappy::Compress(Source*, Sink*, CompressionOptions)’
     82 |   size_t Compress(Source* reader, Sink* writer,
        |          ^~~~~~~~
  make[3]: *** [src/compressor/snappy/CMakeFiles/ceph_snappy.dir/build.make:79: src/compressor/snappy/CMakeFiles/ceph_snappy.dir/CompressionPluginSnappy.cc.o] Error 1
  make[3]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
  make[2]: *** [CMakeFiles/Makefile2:7668: src/compressor/snappy/CMakeFiles/ceph_snappy.dir/all] Error 2

  The compression options parameter which was added for >= 1.2 of snappy
  provides a default, so the added method with no options creates this
  ambiguity.

  Thanks!

  -- System Information:
  Debian Release: trixie/sid
    APT prefers oracular
    APT policy: (500, 'oracular')
  Architecture: amd64 (x86_64)
  Foreign Architectures: i386

  Kernel: Linux 6.8.0-31-generic (SMP w/16 CPU threads; PREEMPT)
  Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE
  Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en
  Shell: /bin/sh linked to /usr/bin/dash
  Init: systemd (via /run/systemd/system)
  LSM: AppArmor: enabled

  Versions of packages libsnappy-dev depends on:
  ii  libsnappy1v5  1.2.0-2

  libsnappy-dev recommends no packages.

  libsnappy-dev suggests no packages.

  -- no debconf information

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