Bug#806156: FTBFS: signon-auth-session.c:639:5: error: 'g_simple_async_result_propagate_error' is deprecated [-Werror=deprecated-declarations]

[Diane Trout]

Hello,

When I tried to build libsignon-glib with the 1.12-1 it seems to build on 
amd64. Did you tweak it slightly to make the deprecation warning an error?

Would you happen to know what it should be replaced with?

Diane