init: fully qualify and (more) robustly compute the cmake dir

init.py

@@ -50,6 +50,13 @@ def split_all_path(path):
 
 
 if __name__ == '__main__':
+    self_path = os.path.realpath(__file__)
+    self_dir = os.path.dirname(self_path)
+
+    build_dir = os.path.realpath(os.getcwd())
+
+    source_dir = os.path.dirname(self_dir)
+
     accumulated = []
 
     components = ['']
@@ -65,4 +72,4 @@ if __name__ == '__main__':
         accumulated += [f'"-D{key}={val}"' for key, val in vars.items()]
         accumulated += args
 
-    print("cmake ../../../ " + " ".join(accumulated))
+    print(f"cmake {source_dir} {' '.join(accumulated)}")