Using a helper function to see if the algorithm works.

src/loaih/build.py

@@ -683,3 +683,13 @@ class Build():
         if not self.debug:
             # Cleaning up build directory
             shutil.rmtree(self.builddir)
+
+
+def libfinderhelper(libraryname):
+    """Uses system tools to identify the missing package."""
+
+    libsearch = subprocess.run(shlex.split(
+        f"sudo apt-file find -lx {libraryname}$"
+    ), check=True, capture_output=True)
+    candidate = [ x for x in libsearch.stdout.decode('utf-8').split('\n') if 'lib' in x ][0]
+    return candidate