Snippets for at-spi2-core 2.60.4 from FreeBSD 150amd64

Sourced from https://pkg-status.freebsd.org/beefy23/data/latest-per-pkg/at-spi2-core/2.60.4/150amd64-default.log.

• ../atspi/atspi-device-a11y-manager.c:55:40: warning: redefinition of typedef 'AtspiDeviceA11yManager' is a C11 feature [-Wtypedef-redefinition]
     55 | typedef struct _AtspiDeviceA11yManager AtspiDeviceA11yManager;
        |                                        ^