Fix glibc locales

Fixes https://gitlab.com/kupfer/kupferbootstrap/-/issues/11

packages.py

@@ -338,6 +338,28 @@ def build_package(package: Package):
 
     if package.mode == 'cross':
         logging.info(f'Cross-compiling {package.path}')
+
+        def umount():
+            subprocess.run(
+                [
+                    'umount',
+                    '-lc',
+                    '/usr/share/i18n/locales',
+                ],
+                stderr=subprocess.DEVNULL,
+            )
+
+        result = subprocess.run([
+            'mount',
+            '-o',
+            'bind',
+            '/chroot/copy/usr/share/i18n/locales',
+            '/usr/share/i18n/locales',
+        ])
+        if result.returncode != 0:
+            logging.fatal(f'Failed to bind mount glibc locales from chroot')
+            exit(1)
+
         result = subprocess.run(
             makepkg_cmd + makepkg_compile_opts,
             env=makepkg_cross_env | {'QEMU_LD_PREFIX': '/usr/aarch64-linux-gnu'},

wrapper.py

@@ -58,8 +58,6 @@ else:
 
         atexit.register(at_exit)
 
-        # TODO: Remove the mount of /usr/share/i18n/locales. It's a trick so we don't need to generate the locales in the chroot.
-        # Something like a prebuilt docker image as base or copying the files from it would be good.
         subprocess.run([
             'docker',
             'run',
@@ -80,6 +78,4 @@ else:
             '-v',
             '/dev:/dev',
             #'-v', '/mnt/kupfer:/mnt/kupfer:z',
-            '-v',
-            '/usr/share/i18n/locales:/usr/share/i18n/locales:ro'
         ] + [tag, 'kupferbootstrap'] + sys.argv[1:])