--- Python-3.9.6/setup.py.orig	2021-07-10 00:09:56.322423573 +0100
+++ Python-3.9.6/setup.py	2021-07-10 00:13:39.447453427 +0100
@@ -750,8 +750,8 @@
             add_dir_to_list(self.compiler.include_dirs,
                             sysconfig.get_config_var("INCLUDEDIR"))
 
-        system_lib_dirs = ['/lib64', '/usr/lib64', '/lib', '/usr/lib']
-        system_include_dirs = ['/usr/include']
+        system_lib_dirs = ['/lib64', '/usr/lib64', '/lib', '/usr/lib', '/usr/local/lib']
+        system_include_dirs = ['/usr/include', '/usr/local/include']
         # lib_dirs and inc_dirs are used to search for files;
         # if a file is found in one of those directories, it can
         # be assumed that no additional -I,-L directives are needed.
@@ -1052,7 +1052,12 @@
         # Curses support, requiring the System V version of curses, often
         # provided by the ncurses library.
         curses_defines = []
-        curses_includes = []
+        if not CROSS_COMPILING:
+            curses_includes = ['/usr/local/include/ncurses']
+        else:
+            curses_includes = sysroot_paths(
+                ('CPPFLAGS', 'CFLAGS', 'CC'), ['/usr/local/include/ncurses']
+            )
         panel_library = 'panel'
         if curses_library == 'ncursesw':
             curses_defines.append(('HAVE_NCURSESW', '1'))