[Bug 1695611] Re: libjson-c3-0.12.1-1.1 has building bug

[harry]

The attached file is the key dump with gdb debug application.
The bug was fixed after rebuilding the libjson-c with source

** Attachment added: "gdb_dump_during_debug_application.txt"
   https://bugs.launchpad.net/ubuntu/+source/json-c/+bug/1695611/+attachment/4888345/+files/gdb_dump_during_debug_application.txt

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Title:
  libjson-c3-0.12.1-1.1 has building bug

Status in json-c package in Ubuntu:
  New

Bug description:
  Hi ubuntu team
       i am developing application based on libjson-c and libglib. The previous version is Ubuntu 16.04, everything is ok. But i found malloc corruption when my OS was upgraded to Ubuntu 17.04. I suspected the glib issue in previous, but i found the problem was caused by libjson-c after debugging. 
       So i used the following command to rebuild libjson from souce:
       # apt-get source libjson-c3
       # cd json-c-0.12.1
       # sudo apt-get build-dep json-c
       # sudo debuild -i -us -uc -b
       i got 3 deb packages: libjson-c-dev_0.12.1-1.1_amd64.deb , libjson-c-doc_0.12.1-1.1_all.deb, libjson-c3_0.12.1-1.1_amd64.deb
       Then use cmd: dpkg -i <***.deb> to install the above package to overwrite(overinstall) the original libjson-c package .

       Last i rebuild my application and run , everything is ok.

       GCC verison:
      # gcc --version
  gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406
  Copyright (C) 2016 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE

      # uname -a
  Linux harry-ThinkPad-Edge-E430 4.10.0-22-generic #24-Ubuntu SMP Mon May 22 17:43:20 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

      i seems the problem was caused by release build.

  Best regards
  Tony

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