Update make rules with proper format

[eirikurj]

Purpose

This PR updates the make rules to

• support the newer pattern rules format.
• suppress the warning: ignoring prerequisites on suffix rule definition which newer versions of make (4.3) generate

Expected time until merged

No rush, but should be quick to test and merge.

Type of change

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (non-backwards-compatible fix or feature)
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Documentation update
• Maintenance update
• Other (please describe)

Testing

Make sure code compiles using the updated make rules.

Checklist

• I have run flake8 and black to make sure the code adheres to PEP-8 and is consistently formatted
• I have run unit and regression tests which pass locally with my changes
• I have added new tests that prove my fix is effective or that my feature works
• I have added necessary documentation

[codecov]

Codecov Report

Merging #69 (26b4344) into main (5763970) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #69   +/-   ##
=======================================
  Coverage   73.43%   73.43%           
=======================================
  Files           6        6           
  Lines         753      753           
=======================================
  Hits          553      553           
  Misses        200      200           

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