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License: GNU General Public License v3.0
GNU cflow README Copyright (C) 2005-2019 Sergey Poznyakoff See the end of file for copying conditions. * Introduction This file contains brief information about configuring, and installing GNU cflow. It is *not* intended as a replacement for the documentation, instead it is provided as a brief reference only. Please be sure to read the accompanuing documentation before using the utility. See section `Documentation' below. For the generic configuration options, see the file `INSTALL'. Refer to file `ABOUT-NLS' for information regarding internationalization. * History The GNU cflow was initially written in 1997, when I needed a utility that could display the control flow in a C program. The latest updates in its old repo date back to 1999. Then, as I no longer needed the package, it fell into oblivion. Six years later a thread in gnu-devel mailing list had shown that there is a kind of demand for that sort of utility, so I decided to resurrect it and make a full-fledged package of it. On 2005-04-12 it was dubbed a GNU package. * Current Status The package is fully operational. It compiles and runs on any GNU/Linux and most decent UNIX-like systems. It supports all command line switches required by POSIX, plus a number of extended ones. It is able to produce output in two formats: in GNU cflow format (which is the default) and in POSIX format. Currently the utility is only able to process C sources. It is the only deviation from POSIX specs, which requires ability to process YACC and LEX sources as well as binary object files. This support will appear in future versions. Emacs module cflow-mode.el works with files in GNU cflow format (as opposed to POSIX format). It has been tested with Emacs 24.2.1. * Compilation Please see the INSTALL file in this directory for the generic instructions on how to use configure. There is currently only one package-specific configuration option: --enable-debug, which compiles the package with -g (or -ggdb if appropriate) option. Use it if you plan debugging cflow. * Installation After running `./configure' and `make', run `make install'. * Configuration File The file src/cflow.rc provides a working configuration file for use with gcc. See the documentation, sections 6.1 "Syntactic classes" and 6.3 "GCC Initialization", for more information. * Documentation Complete user manual in texinfo format is provided. After the installation, it will be accessible by running `info cflow'. To read it before installing the package, run `info -f doc/cflow' from the package source root directory. If you don't have GNU texinfo installed, see http://www.gnu.org/software/texinfo for information on where to obtain it. * Bug reporting. Send bug reports and suggestions to <[email protected]>. * Copyright Information: Copyright (C) 2005, 2010, 2011, 2014 Sergey Poznyakoff Permission is granted to anyone to make or distribute verbatim copies of this document as received, in any medium, provided that the copyright notice and this permission notice are preserved, thus giving the recipient permission to redistribute in turn. Permission is granted to distribute modified versions of this document, or of portions of it, under the above conditions, provided also that they carry prominent notices stating who last changed them. Local variables: mode: outline paragraph-separate: "[ ]*$" end:
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