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This demo shows how to embed ECL into Qt5 and serve as kernel. This also discuss how to compile ECL with C++(14). You can extend on this demo to form a more complicate and productive project.


Before you build the demo, make sure you have those dependencies installed:

  1. ECL, of course. We recommend version 16.1.2.
  2. g++/clang compiler with at least C++14 support.
  3. make
  4. Qt5.x with Qt Creator.
  5. Quicklisp installed on your ECL.

We use the external Lisp package :lparallel so you better download that package in advance using (ql:quickload :lparallel).


Build CL Library and FASB

Run make in current directory and you get two files in the directory qt/ (if successful). lisp-envi.a and hello-lisp-system--all-systems.fasb.

Configure and build your Qt Project

To build the example it is enough to change to the qt/ directory, generate a Makefile with qmake and to call make.

cd qt/

If you want to change your Qt project, open it with the Qt Creator. It can build the executable for you (instead of manually working with make).


After you go through the steps above, go for the executable file and try that demo.

Notice: For OSX users, you should manually move the .fasb file into the directory where your executable file is in. So run the command:

mv hello-lisp-system--all-systems.fasb

Happy hacking with ECL!