Usage: gencat [OPTION...] -o OUTPUT-FILE [INPUT-FILE]...
  or:  gencat [OPTION...] [OUTPUT-FILE [INPUT-FILE]...]
Generate message catalog.

  -H, --header=NAME          Create C header file NAME containing symbol
                             definitions
      --new                  Do not use existing catalog, force new output file
                            
  -o, --output=NAME          Write output to file NAME
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

If INPUT-FILE is -, input is read from standard input.  If OUTPUT-FILE
is -, output is written to standard output.

For bug reporting instructions, please see:
<https://bugs.launchpad.net/ubuntu/+source/glibc/+bugs>.