ontty

part of shnell – a source to source compiler enhancement tool

Trick a program into assuming that it is run in a terminal.

import ontty
...
ontty program arguments ...

The following code is needed to enable the sh-module framework.

SRC="$_" . "${0%%/${0##*/}}/import.sh"

The following sh-modules are imported:

MKNOD=${MKNOD:=mknod}

Found the solution of intercepting the isatty call here: https://unix.stackexchange.com/a/273412/11934

It consists in compiling a dummy function and creating a shared library.

echo "int isatty(int fd) { return 1; }" | c99 -O2 -fpic -shared -ldl -o isatty.so -xc -

This should usually be built via the Makefile.