Prerequisites: * `python3` (for: build, test) * `gcc` and/or `clang` (for: build) * `valgrind` (for: build, test) * [`libcpucycles`](https://cpucycles.cr.yp.to) (for: build, bench) * [`librandombytes`](https://randombytes.cr.yp.to) (for: build, test, bench, run) Make sure to [test](test.html) the compiled library. The tests check for subtle security problems that can be created by compilers. A compiled version of libntruprime is **not supported** unless it passes the full test suite. ### For sysadmins To install in `/usr/local/{include,lib,bin,man}`: ./configure && make -j8 install ### For developers with an unprivileged account Typically you'll already have export LD_LIBRARY_PATH="$HOME/lib" export LIBRARY_PATH="$HOME/lib" export CPATH="$HOME/include" export MANPATH="$HOME/man" export PATH="$HOME/bin:$PATH" in `$HOME/.profile`. To install in `$HOME/{include,lib,bin,man}`: ./configure --prefix=$HOME && make -j8 install ### For distributors creating a package Run ./configure --prefix=/usr && make -j8 and then follow your usual packaging procedures for the `build/0/package` files: build/0/package/include/ntruprime.h build/0/package/lib/libntruprime* build/0/package/bin/*ntrup* build/0/package/man/man3/*.3 build/0/package/man/man1/*.1 ### More options, part 1: architectures You can run ./configure --host=amd64 to override `./configure`'s guess of the architecture that it should compile for. Inside the `build` directory, `0` is symlinked to `amd64` for `--host=amd64`. Running `make clean` removes `build/amd64`. Re-running `./configure` automatically starts with `make clean`. A subsequent `./configure --host=arm64` will create `build/arm64` and symlink `0 -> arm64`, without touching an existing `build/amd64`. However, cross-compilers aren't yet selected automatically. ### More options, part 2 One further `./configure` option is supported for [developers](internals.html): `--no-trim`. All `./configure` options not listed above are experimental and **not supported**. Use them at your own risk.