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Add additional information on requirements in INSTALL.md
100 lines
3.4 KiB
Markdown
100 lines
3.4 KiB
Markdown
Installing
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==========
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The easiest way to install is via the existing generated Scheme code.
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The requirements are:
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* A Scheme compiler; either Chez Scheme (default), or Racket.
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* `bash`, with `realpath`. On Linux, you probably already have this.
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On a Mac, you can install this with `brew install coreutils`.
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On Windows, it has been reported that installing via `MSYS2` works
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(https://www.msys2.org/). On Windows older than Windows 8, you may need to
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set an environment variable `OLD_WIN=1` or modify it in `config.mk`.
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On Raspberry Pi, you can bootstrap via Racket.
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By default, code generation is via Chez Scheme. You can use Racket instead,
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by setting the environment variable `IDRIS2_CG=racket` before running `make`.
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If you install Chez Scheme from source files, building it locally,
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make sure you run `./configure --threads` to build multithreading support in.
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1: Set the PREFIX
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-----------------
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* Change the `PREFIX` in `config.mk`. The default is to install in
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`$HOME/.idris2`
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If you have an existing Idris 2, go to the alternative Step 2. Otherwise, read on...
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Make sure that:
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* `$PREFIX/bin` is in your `PATH`
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* `$PREFIX/lib` is in your `LD_LIBRARY_PATH` or `DYLD_LIBRARY_PATH` if on
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`macOS` (so that the system knows where to look for library support code)
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2: Installing without an existing Idris 2
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------------------------------------------
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If you *don't* have [Idris-2-in-Idris-1](https://github.com/edwinb/Idris2-boot) installed, you can build from pre-built
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Chez Scheme source, as long as you have Chez Scheme installed (or,
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alternatively, Racket). To do this, enter one of the following:
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* `make bootstrap SCHEME=chez`
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* `make bootstrap-racket`
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`chez` is the executable name of the Chez Scheme compiler. You may need to
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replace this with the executable for Chez Scheme on your system. This could be
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`scheme`, `chezscheme` or `chezscheme9.5` or something else, depending on your
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system and the Chez Scheme version.
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This builds an Idris 2 compiler from scheme code output from a working Idris 2
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compiler (which isn't necessarily up to date, but is up to date enough to
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build the current repository). It then rebuilds using the result, and runs
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the tests.
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If all is well, to install, type:
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* `make install`
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(Alternative 2: Installing with an existing Idris 2)
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----------------------------------------------------
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If you have [Idris-2-in-Idris-1](https://github.com/edwinb/Idris2-boot)
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installed:
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* `make all IDRIS2_BOOT=idris2boot`
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* `make install IDRIS2_BOOT=idris2boot`
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If you have an earlier version of this Idris 2 installer
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* `make all`
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* `make install`
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3: (Optional) Self-hosting step
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-------------------------------
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As a final step, you can rebuild from the newly installed Idris 2 to verify
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that everything has worked correctly. Assuming that `idris2` is in your
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`PATH`.
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* `make clean` -- to make sure you're building everything with the new version
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* `make all && make install`
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4: Running tests
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----------------
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After `make all`, type `make test` to check everything works. This uses the
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executable in `./build/exec`.
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5: (Optional) Installing the Idris 2 API
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----------------------------------------
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You'll only need this if you're developing support tools, such as an external
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code generator. To do so, once everything is successfully installed, type:
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* `make install-api`
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The API will only work if you've completed the self-hosting step, step 3, since
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the intermediate code versions need to be consistent throughout.
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