[Chicken-janitors] #1237: define-foreign-type causes confusing messages to be printed

[Chicken Trac]

#1237: define-foreign-type causes confusing messages to be printed
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 Reporter:  evhan               |      Owner:
     Type:  defect              |     Status:  new
 Priority:  major               |  Milestone:  someday
Component:  compiler            |    Version:  4.10.x
 Keywords:  compiler, warnings  |
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 Reported by John Croisant on [https://lists.nongnu.org/archive/html
 /chicken-users/2015-12/threads.html chicken-users] (link to thread index
 until message appears in archive).

 The variables in question are already marked hidden, but that message is
 emitted for any variables that are not-visible, *including* hidden ones.
 If a variable is hidden, however, the user shouldn't hear about it, so
 this warning should also be skipped in this case.

 The original bug report deals specifically with procedure names produced
 by `define-foreign-type`, but any fix should apply to all hidden
 variables, I think.

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Ticket URL: <http://bugs.call-cc.org/ticket/1237>
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