# START OUTPUT

CheckMake runs on individual problems.  It parses the
master Makefile to get a list of all INCLUDE makefiles.
Then it creates a list of all targets defined in these
Makefiles.

After all targets have been collected, CheckMake processes
the list in makefile/taget order. First, it opens the target
source file and checks for "use" and "include" statements.
If it finds any, it checks if those appear among the depen-
dencies.  If they do not, CheckMake will report it. 
(NOTE: Some files--depending on file name suffix--are skipped.
See output.)

CheckMake then parses the source files of the listed dependencies
and keeps a record of all source files in opened. Whenever it 
encounters a 'use' or 'include' statement, the respective file is
queued in, as long as it has a significant suffix. After it has 
parsed the last file, the list of files parsed is compared to 
the list of dependencies.  If both list contain the same file 
name, it is assumed that the makefile is correct.