The easiest way to install SDL_bgi is by using the binary packages
provided at http://sdl-bgi.sourceforge.io/#download in .deb and
.rpm format.
Alternatively, you can easily compile SDL_bgi yourself, as shown below.
Please make sure you have SDL2 development packages. On Debian, Mint,
Ubuntu and similar distributions, please install libsdl2-dev and its
dependencies; in Fedora, please install SDL2-devel. Obviously,
you'll also need make and a C compiler; gcc or clang are fine.
To compile and install SDL_bgi, run the following commands:
$ VERSION=2.5.1
$ tar zxvf SDL_bgi-$VERSION.tar.gz
$ cd SDL_bgi-$VERSION/src
$ make
$ sudo make install
Files will be installed in appropriate directories:
SDL_bgi.h -> /usr/include/SDL2/
graphics.h -> /usr/include/
libSDL_bgi.so -> /usr/lib/
This only works if cmake and cpack are installed.
To compile the SDL_bgi library and make .deb or .rpm packages:
$ VERSION=2.5.1
$ tar zxvf SDL_bgi-$VERSION.tar.gz
$ cd SDL_bgi-$VERSION
$ ./mkpkg.sh
which creates a subdirectory called build/, moves to it, runs
cmake, then cpack. In a few seconds, in directory build/ you
will find a package that should be suitable for your system (.deb or
.rpm). You'll want to install that.
If you prefer the usual way:
$ mkdir build && cd build
$ cmake ..
$ make && sudo make install
To uninstall:
$ make uninstall
Once SDL_bgi is installed, you can compile some test programs you
can find in the test/ directory. Type:
$ cd test && make
Please see the using.md file in the doc/ directory.
Enjoy!
Guido =8-)