When using GCC 14 to build accountsservice, we run into this build error:

[   10s] ../src/gdm-sysconfig.c: In function ‘gdm_sysconfig_save_file’:
[   10s] ../src/gdm-sysconfig.c:382:47: error: passing argument 2 of ‘save_settings_file’ from incompatible pointer type [-Wincompatible-pointer-types]
[   10s]   382 |         return save_settings_file (file_name, sysconfig);
[   10s]       |                                               ^~~~~~~~~
[   10s]       |                                               |
[   10s]       |                                               const gchar ** {aka const char **}
[   10s] ../src/gdm-sysconfig.c:91:53: note: expected ‘gchar **’ {aka ‘char **’} but argument is of type ‘const gchar **’ {aka ‘const char **’}
[   10s]    91 | save_settings_file (const gchar *file_name, gchar **lines)
[   10s]       |                                             ~~~~~~~~^~~~~
[   10s] ../src/gdm-sysconfig.c: In function ‘gdm_sysconfig_load_value’:
[   10s] ../src/gdm-sysconfig.c:458:28: error: passing argument 1 of ‘get_value’ from incompatible pointer type [-Wincompatible-pointer-types]
[   10s]   458 |         value = get_value (lines, key);
[   10s]       |                            ^~~~~
[   10s]       |                            |
[   10s]       |                            gchar ** {aka char **}
[   10s] ../src/gdm-sysconfig.c:271:26: note: expected ‘const gchar **’ {aka ‘const char **’} but argument is of type ‘gchar **’ {aka ‘char **’}
[   10s]   271 | get_value (const gchar **lines, const gchar *key)
[   10s]       |            ~~~~~~~~~~~~~~^~~~~

The code comes from a local SUSE patch: accountsservice-sysconfig.patch