Changed the library_dirs and libraries parameters from a list of an empty

string [''] to an empty list of strings [].

setup.py

@@ -72,8 +72,15 @@ else:
         '_htm',
         sources + psources,
         include_dirs=["./include", "./python"],
-        library_dirs=[''],
-        libraries=[''],
+        # A list of empty strings for library_dirs and libraries can
+        # cause compilation problems because it results in an 'empty'
+        # -L and -l parameter. Original lines kept for reference in
+        # case they are useful in a specific configuration and written
+        # like this on purpose.
+        #library_dirs=[''],
+        #libraries=[''],
+        library_dirs=[],
+        libraries=[],
     )
 
 if (opath):
@@ -81,8 +88,15 @@ if (opath):
         '_ohtm',
         sources + osources,
         include_dirs=["./include", "./python", opath + "/rdbms/demo", opath + "/rdbms/public"],
-        library_dirs=[''],
-        libraries=[''],
+        # A list of empty strings for library_dirs and libraries can
+        # cause compilation problems because it results in an 'empty'
+        # -L and -l parameter. Original lines kept for reference in
+        # case they are useful in a specific configuration and written
+        # like this on purpose.
+        #library_dirs=[''],
+        #libraries=[''],
+        library_dirs=[],
+        libraries=[],
     )
     setup(
         name=name,