All wdiff options that make sense are supported as well as custom wdiff executables. Common options can be set by env vars; see --help for details.
As I see it, there are two main uses:
1. View quickly all changes in fuzzy records in a set of files in a terminal window; for example:
[wdiff style]: view-fuzzy -ap /some-path/www/gnu/po/*.xx.po [with color ]: view-fuzzy -h c -a /some-path/www/gnu/po/*.xx.po
2. Merge diff with the initial po file to produce a file that can be edited with emacs or any po-editor that can display comments; so that highlighted changes are visible while editing the file. For example:
In addition, when we are certain that no spurious errors may result in data loss of the original file's msgids and msgstrs, then I believe it will be relatively easy to incorporate in the team's GNUmakefile a repository update mode that will automatically merge the diffs in local team's po files. What's your opinion about this?