Merge pull request #477 from oscar-system/lk/docs/remove_old

Outdated docs removed

docs/src/getting_started.md

@@ -13,51 +13,6 @@ Note: Pre-built binaries are available for the `Linux` and `macOS` platform, but
 
 Note: Pre-built polymake will use a separate `.polymake` config directory (usually `joinpath(homedir(), ".julia", "polymake_user")`).
 
-### Your own installation of `polymake`
-
-If you already have a recent enough version of `polymake` (i.e. `>=4.0`) on your system and you want to use this version of `polymake`, you either need to
- * set the environment variable `POLYMAKE_CONFIG=yes` and make `polymake-config` available in your `PATH` or
- * set the environment variable `POLYMAKE_CONFIG` to the full path of the `polymake-config` executable.
-
-After this just `add` the package as above (or `build` if the package has been already added), the build script will use your `polymake` installation.
-
-### `polymake` from source
-
-A compatible version is available at [polymake/polymake](https://github.com/polymake/polymake).
-It can be compiled as follows where `GIT_FOLDER` and `INSTALL_FOLDER` have to be substituted with your favorite folders. Please note that these need to be absolute paths.
-Also make sure to check [the necessary dependencies](https://polymake.org/doku.php/howto/install) as well as the [additional instructions for Macs](https://polymake.org/doku.php/howto/mac).
-
-```sh
-export POLYMAKE_GIT=GIT_FOLDER
-export POLYMAKE_INSTALL=INSTALL_FOLDER
-git clone git@github.com:polymake/polymake $POLYMAKE_GIT
-cd $POLYMAKE_GIT
-./configure --prefix=$POLYMAKE_INSTALL
-ninja -C build/Opt
-ninja -C build/Opt install
-export POLYMAKE_CONFIG=$POLYMAKE_INSTALL/bin/polymake-config
-```
-Note that `polymake` might take some time to compile.
-
-After this start Julia and follow the instructions above.
-
-Note: Self-built polymake will use the standard `.polymake` config directory (usually `$HOME/.polymake`).
-
-### `Polymake.jl` in a separate environment:
-```
-mkdir my_new_env
-cd my_new_env
-```
-Then start Julia in the directory and press `]` for `pkg` mode.
-```julia
-(v1.3) pkg> activate .
-(Polymake) pkg> dev --local Polymake
-(Polymake) pkg> build Polymake # fetches the prebuild polymake binaries
-(Polymake) pkg> test Polymake # and You are good to go!
-```
-If `polymake-config` is in your `PATH`, or `POLYMAKE_CONFIG` environment variable is set the `build` phase will try to use it.
-
-Just remember that You need to `activate Polymake.jl` to use `Polymake`.
 
 ## Getting Help