do not go down include directory, usually the relative path is added.

gen_pro.py

@@ -1,4 +1,6 @@
 import os
+import re
+from pathlib import Path, PurePath
 
 header = """
 TEMPLATE = app
@@ -13,25 +15,34 @@
 headers = []
 sources = []
 include_path = set()
+
 for path, dirs, files in os.walk('.'):
     if '.git' in dirs:
         dirs.remove('.git')
 
     for afile in files:
         if afile.endswith('.c') or afile.endswith('.cpp') or afile.endswith('.cc'):
             rel_path = os.path.join(path, afile)
-            rel_path = rel_path.replace('\\', '/', 1000)
+            #rel_path = rel_path.replace('\\', '/', 1000)
             sources.append(rel_path)
             continue
 
         if afile.endswith('.h') or afile.endswith('.hpp'):
             rel_path = os.path.join(path, afile)
-            rel_path = rel_path.replace('\\', '/', 1000)
+            #rel_path = rel_path.replace('\\', '/', 1000)
             headers.append(rel_path)
-            include_path.add(os.path.dirname(rel_path))
+
+            p = Path(path)
+            segments = p.parts
+            path_seg = []
+            for segment in segments:
+                path_seg.append(segment)
+                if segment == 'include':  # this is an include path, stop here.
+                    break
+            include_path.add(os.path.join(*path_seg))
             continue
 
-print('INCLUDEPATH +=', '\\\n'.join(include_path))
+print('INCLUDEPATH +=', ' \\\n'.join(sorted(include_path)))
 print()
 
 print('HEADERS +=', '\\\n'.join(headers))