2019.09.09 Adapted for newer pick transfer semantics.
2011.02.12 Added parsing for optional flags to uses of relative path. Fixed parsing of main package configuration(s).
2011.02.10 Added sorting of directories and/or files for package.
2010.06.11 Fixed some define macros to compile with GNU C preprocessor.
2010.03.21 Added [--use rpath] option to specify referenced package from relative directory.
2010.02.02 Some refactoring.
2010.01.21 Added [--version] option to print out version information.
2010.01.19 Added [--output file] option to output stream into specified file.
2010.01.19 First public release.
