Install libcallback1 by entering the following commands in the terminal:
sudo apt update sudo apt install libcallback1
Description:
foreign function call libraries - closures with variable arguments in C
ffcall is a collection of libraries which can be used to build foreign function call interfaces in embedded interpreters. . This package installs a shared library version of the callback library, which provides closures with variable arguments as first-class C functions. . The use of this shared library is deprecated. The main libffcall library, which embeds callback, should be preferred.
Homepage: https://savannah.gnu.org/projects/libffcall/
Version: 2.1-1
Section: universe/libs