Hello folks, I was trying to install ngspice but i am getting this error message at the 'make' command step

you need to install libncurses-dev:

sudo apt install libncurses-dev

You are probably missing other packages, so please read the ngspice INSTALL file:

The following software must be installed in your system to compile
 ngspice as a standard executable (command-line input, file and graphics
 output):
 bison, flex, X11 headers and libs, Xaw, Xmu, Xext, Xft, FontConfig,
 Xrender, freetype headers and readline.
 Typically one needs the headers (e.g. libX11-devel) and the libs (e.g. libX11-6).

before anything else you must have make, gcc, autoconf, automake and libtool installed:

sudo apt install make gcc autoconf automake libtool

Read paragraph 1.3 in the INSTALL file.

Thanks Stephan, it worked