NAME:
  Package Changes Analyzer (pkgdiff) - a tool for visualizing changes in Linux software packages (RPM, DEB, TAR.GZ, etc). The tool is intended for Linux maintainers who are interested in ensuring compatibility of old and new versions of packages.
  
  The tool can compare directories as well (with the help of the -d option).
  
  Sample report: https://abi-laboratory.pro/tracker/package_diff/libssh/0.6.5/0.7.0/report.html
  
  The tool is developed by Andrey Ponomarenko: https://abi-laboratory.pro/

INSTALL:
  sudo make install prefix=/usr

REQUIRES:
  Perl 5
  GNU Diff
  GNU Wdiff
  GNU Awk
  GNU Binutils
  Perl-File-LibMagic

USAGE:
  pkgdiff PKG1 PKG2 [options]
  pkgdiff -d DIR1/ DIR2/ [options]

EXAMPLE:
  pkgdiff libssh-0.6.5.tar.xz libssh-0.7.0.tar.xz

ADV. USAGE:
  For advanced usage, see output of -help option

USEFUL OPTIONS:
  -hide-unchanged:      Don't show unchanged files in the report
  -list-added-removed:  Show content of added and removed text files
  -skip-pattern REGEX:  Don't check files matching REGEX
  -tmp-dir DIR:         Use custom temp directory
  -d/-directories:      Compare directories instead of packages

SUGGESTS:
  ABI Compliance Checker 1.99.1 or newer: https://github.com/lvc/abi-compliance-checker/
  ABI Dumper 0.97 or newer: https://github.com/lvc/abi-dumper