makeinfo
is not part of your C compilation process, it is a documentation generator, used usually in conjunction with GNU autools.
You should be able to install it by installing the texinfo
Cygwin package.
Note that makeinfo
is NOT make
, by far. If you need make
, install that Cygwin package as well, and set "Make Command" to C:\cygwin64\bin\make.exe
(in your case).