This is liwc, version 1.21.

liwc is a collection of programs to manipulate C source code,
originally written by Lars "liw" Wirzenius.

ccmtcnvt converts C++ comments (// foo) to C comments (/* foo */).
rmccmt removes C and C++ comments.
entrigraph converts single characters to trigraphs.
untrigraph converts trigraphs to single characters.
cstr prints string literals in C programs.

You need the Publib library (see http://code.google.com/p/publib/) and
a <unistd.h> that declares getopt. Once you have these (or hack the
source to avoid them), you can compile with "make" and install with
"make install".

Please file bug reports in the issue tracker at
  http://code.google.com/p/liwc/issues/list
or alternatively by electronic mail to
    [email protected]

Development code is hosted in Git.  There's a code browser at
  http://code.google.com/p/liwc/source/browse/
and a local clone can be made by
  git clone https://code.google.com/p/liwc/

Releases will be posted at
  http://code.google.com/p/liwc/downloads/list


liwc is free software under the following copyright and license statement:

Copyright (c) 2012 Antti-Juhani Kaijanaho
Copyright (c) 1994-2003 Lars Wirzenius

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2, as
published by the Free Software Foundation.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.