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Installation

This installation manual describes how to install tclscan based on your running tcl version.

Introduction

To complete the instructions experience with a Linux environment rudimentary udnerstanding of coding and some patients are required.

Environment debian / ubuntu

Install tcl-dev and clang.

sudo apt-get install tcl-dev clang

Environment redhat

sudo subscription-manager repos --enable rhel-7-server-devtools-rpms
sudo subscription-manager repos --enable rhel-server-rhscl-7-rpms
sudo yum install llvm-toolset-7 tcl-devel

For more troubleshooting see https://developers.redhat.com/products/clang-llvm-go-rust/hello-world/#fndtn-windows

Installing rust

Install rustup and cargo from source.

curl https://sh.rustup.rs -sSf | sh

Some of the code relies on features in the nightly build of rust, so you need to switch to it.

$ rustup toolchain install nightly
info: syncing channel updates for 'nightly-x86_64-unknown-linux-gnu'
$ rustup default nightly

Activate the rust environment in your shell

source ~/.cargo/env

Installing rust-bindgen

Rust-bindgen is a tool that allows you to generate rust bindings from c header files.

Clone the rust-bindgen repository.

git clone https://github.com/rust-lang-nursery/rust-bindgen

Check out a recent release

git tag

...
v0.42.2
v0.42.3
v0.43.0
v0.43.1
vX.YY.Z

git checkout vX.YY.Z (e.g. the latest branch)

Update the cargo and build

cargo update
cargo build

Creating a build rust tcl header

Prepare the rust to c bindings in two steps:

  1. Edit tclscan/src/mytcl.h to define the path to tcl.h installed through tcl-dev/tcl-devel.
  2. Locate youre libclang.so file that you installed from the clang package.

Generate tcl.rs in the tclsca/src/ directory using bindgen

LD_PRELOAD=/usr/lib/llvm-6.0/lib/libclang.so.1 rust-bindgen/target/debug/bindgen -o tclscan/src/tcl.rs tclscan/src/mytcl.h

If you get the error

error: 'rustfmt' is not installed for the toolchain 'nightly-x86_64-unknown-linux-gnu'

Simply install rustfmt:

$ rustup component add rustfmt --toolchain nightly-x86_64-unknown-linux-gnu

Upate your running environment

cargo update

Set environment variable for linking against libtcl.so

export RUSTFLAGS="-C link_args="-ltcl""

Compile the program

cargo build

A successfull build produce the executable tclscan/target/debug/tclscan. If you want to install tclscan on other systems, keep in mind that it depends on libtcl.so in your $LD_LIBRARY_PATH.