Comment 2 for bug 193764

Here's the build failure trying to build against the evolution 2.22 headers:

scalix-account-synch.c: At top level:
scalix-account-synch.c:577: error: field 'msg' has incomplete type
scalix-account-synch.c:1016: error: variable 'account_synch_op' has initializer but incomplete type
scalix-account-synch.c:1017: warning: excess elements in struct initializer
scalix-account-synch.c:1017: warning: (near initialization for 'account_synch_op')
scalix-account-synch.c:1018: warning: excess elements in struct initializer
scalix-account-synch.c:1018: warning: (near initialization for 'account_synch_op')
scalix-account-synch.c:1019: warning: excess elements in struct initializer
scalix-account-synch.c:1019: warning: (near initialization for 'account_synch_op')
scalix-account-synch.c:1020: warning: excess elements in struct initializer
scalix-account-synch.c:1020: warning: (near initialization for 'account_synch_op')
scalix-account-synch.c: In function 'scalix_account_synch_run':
scalix-account-synch.c:1043: warning: passing argument 1 of 'mail_msg_new' from incompatible pointer type
scalix-account-synch.c:1043: error: too many arguments to function 'mail_msg_new'
scalix-account-synch.c:1055: error: 'mail_thread_new' undeclared (first use in this function)
scalix-account-synch.c:1055: error: (Each undeclared identifier is reported only once
scalix-account-synch.c:1055: error: for each function it appears in.)
make[3]: *** [scalix-account-synch.lo] Error 1