If you are a developer, you could be intersted by Crystal Lang : it takes up the greater part of the syntax of ruby, but makes it possible to compile the code and to have better performances. Here is the step-by-step compilation tutorial on Debian 8.
To compile Crystal, we need first to download Crystal sources. We will use git. On debian systems, open a console, and install git with :
sudo apt-get install git. Go to you Home folder :
Then, in your console, type :
git clone https://github.com/crystal-lang/crystal
Verify that crystal is cloned with
ls -l |grep crystal
You need LLVM to compile Crystal. Install LLVM with this command :
sudo apt-get install llvm .
You also need the Boehm-Demers-Weiser conservative C/C++ Garbage Collector. You need to clone and compile it :
git clone https://github.com/ivmai/bdwgc.git cd bdwgc git clone https://github.com/ivmai/libatomic_ops.git autoreconf -vif automake --add-missing ./configure make make check sudo make install
Once dependencies are installed, let's compile Crystall : go to crystal dir :
cd && cd crystal and type
make. If you get this message : "Could not locate llvm-config, make sure it is installed and in your PATH, or set LLVM_CONFIG", LLVM is not correctly installed.
If compilation is ok, the fresh Crystal should be here :
Test the compiler
To test the Crystal compiler, go to your home folder :
cd. Create a folder test :
mkdir test, and copy the Cystal compiler in it
cp ./crystal/.build/crystal test/.
Go to you test folder :
cd test, and create a file named hello.cr :
touch hello.cr. Now, let's make a simple "Hello World" program : echo 'puts "Hello World\n"' > hello.cr
We can run test.cr :
If all is ok, it should output
Now, let's compile this :
./crystal build hello.cr. You should have a new file name
hello. Run this program :
./hello. You should get
Hello World to.
You can either compile a program with optimization options :
./crystal build --release hello.cr
If you got problems during compilation, don't hesitate to contact us via comments, we will help you.