If you compile from the command-line
make is likely to work.
But if - for instance - after
./configure you open Eclipse and try to build the project, you may have that warning (
no all rule).
make by default expect a
all in the
Makefile if no specific rule is provided on the command line.
I suggest you open the Makefile(s) and add the rule
after the first rule (this is usually the default:
make takes the first rule if none provided).
build being that first rule - it may be different in your case.
Or you make change the
make calls to