make: Nothing to be done for `all'.
This message is generating by the GNU make utility when it determines
that no compiles, assembles, links, etc., are required. The makefile
establishes a set of dependencies. For example, file Main.o is dependent
on file Main.c, such that if Main.o either does not exist, or has
an earlier date tag than Main.C the GNU make utility will call the
GNU compiler to create a new version of Main.0. The above message
indicates that the makefile has determined that no compile or link
options are required because all dependent files are up-to-date.
To test this, delete all the object and executable image files by
typing the following
make clean
Now run the make utility again
make
You should see all the compile and links take place.
