Hi Joseph, > On Wed, 26 Feb 2020, Lukasz Majewski wrote: > > > > > hidden_def (__mq_timedsend) > > > > weak_alias (__mq_timedsend, mq_timedsend) [**] > > > > hidden_weak (mq_timedsend) > > > > > > If you have lib<name>_hidden_weak note you also need a > > > corresponding lib<name>_hidden_proto, for the name of the weak > > > alias. But you probably don't need to have lib<name>_hidden* for > > > the weak alias at all, just make sure internal calls use the > > > internal name. > > > > As fair as I can tell the weak_alias () is necessary for correct > > operation of mq_timedsend when external programs call it. > > I wasn't commenting on the weak_alias call, but on the hidden_weak > one. Ach... indeed - sorry for misunderstanding. > > If you have hidden_weak (mq_timedsend), you also need > lib<name>_hidden_proto (mq_timedsend) in the internal header (and > vice versa, hidden_proto implies you need hidden_weak). > > You don't need hidden_weak (mq_timedsend) unless there is an > *internal call to mq_timedsend from within the same library that > defines it*. > > Since such an internal call could just use __mq_timedsend instead, > you probably don't need hidden_weak / hidden_proto for mq_timedsend. > > (If you don't have an internal call to __mq_timedsend, you don't need > the hidden_* for that name either.) > Thanks for the explanation. Best regards, Lukasz Majewski -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma@xxxxxxx
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