ipc: add LIBINPUT_CONFIG_ACCEL_PROFILE_CUSTOM entry

This was introduced in the last libinput release.

Fixes the following error:

    ../sway/ipc-json.c:928:17: error: enumeration value 'LIBINPUT_CONFIG_ACCEL_PROFILE_CUSTOM' not handled in switch [-Werror=switch]
      928 |                 switch (libinput_device_config_accel_get_profile(device)) {
          |                 ^~~~~~

1 files changed, 5 insertions, 0 deletions

diff --git a/sway/ipc-json.c b/sway/ipc-json.c
index 51e6a995..c7cbea01 100644
--- a/sway/ipc-json.c
+++ b/sway/ipc-json.c
@@ -935,6 +935,11 @@ static json_object *describe_libinput_device(struct libinput_device *device) {
                 case LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE:
                         accel_profile = "adaptive";
                         break;
+#if HAVE_LIBINPUT_CONFIG_ACCEL_PROFILE_CUSTOM
+                case LIBINPUT_CONFIG_ACCEL_PROFILE_CUSTOM:
+                        accel_profile = "custom";
+                        break;
+#endif
                 }
                 json_object_object_add(object, "accel_profile",
                                 json_object_new_string(accel_profile));