Erik Auerswald
08a628ff04
C compilers are getting more aggressive with warnings and are producing more false positives. While I intend to keep ssocr compiling without warnings (as in the last 15 years), I do not use the newest C compilers, but rather the GCC version included in a stable GNU/Linux distribution, it may take some time for me to encounter those problems myself, and thus it may take some time for me to work around them. A user reported a compilation failure due to new warnings in GCC 10.1. Since I currently use GCC 7.5.0 from Ubuntu 18.04 LTS, I do not see those warnings yet, and thus cannot test any workarounds yet. A first investigation into the issue hints at a need to replace valid code with code invalid for GCC's default C standard version (necessitating the specification of a newer C standard in the CFLAGS) to work around said problem. I have no idea if there are additional warnings with GCC 10.1 after working around that one. Since Google blocks my emails to the reporting user, I cannot even communicate to find this out. Thus any code changes will have to wait for either a GCC version with additional warnings arriving in my GNU/Linux distribution, or establishment of a different communication channel, e.g., a GitHub issue.
Seven Segment Optical Character Recognition or ssocr for short is a program to recognize digits of a seven segment display. An image of one row of digits is used for input and the recognized number is written to the standard output. The program runs on GNU/Linux (some GNU/Linux distributions provide an ssocr package), FreeBSD (available as a port as well), Mac OS X (Homebrew can be used to install the library Imlib2, used by ssocr), and even on Windows (using Cygwin). ssocr should work on any UNIX-like or POSIX compatible operating system. Unless ssocr is installed via some packaging system, e.g. from a GNU/Linux distribution, it is distributed in source form and needs to be built before it can be used. See the INSTALL file for instructions on how to build ssocr. A manual for ssocr is available in the form of a man page named ssocr.1, you can read it using "make ssocr.1 && man ./ssocr.1" (without the quotes). You can get the current ssocr version from the official ssocr website: http://www.unix-ag.uni-kl.de/~auerswal/ssocr/ (Links to ssocr should point to the official website, not to a convenience copy of the development repository, e.g. on GitHub.) I am usually quicker to reply to emails than to GitHub issues. But increasingly Google blocks emails sent by me, so if you do not receive an answer from me, consider opening a GitHub issue. Perhaps your mail provider does not allow you to read my solutions to your ssocr problems. Especially if you are using an @gmail.com address, and you do not receive an answer to an email, it is most likely that Google blocked that answer. In that case, you can either follow up with a GitHub issue or use a better email provider than Google. Every file in this repository or archive is licensed under the GNU General Public License version 3 (or later), unless another license is explicitly given in the file itself. This includes all documentation files and the Makefile, and all other files.