Could I add files to a project (to compile and link) that are located in path in global variable?
The PATH envvar is used by command line processors to find executable and libraries, not general (text) files. It woudn't make sense, really.
I
don't didn't mean the PATH env variable, I mean a path in a global variable, ex: I unzip some source(.c) files in /home/some/random/path, in Linux I create a global variable 'GLOB_VAR' and set it to /home/some/random/path but in Windows I set 'GLOB_VAR=X:/some/random/path/', then, in some project I add a .c file that is located on '/home/some/random/path' or in 'X:...', I know I could use relative paths but...
PD: Sorry if I did not express myself (In english).