[MacPorts] #57539: legacysupport-1.0: Let ports specify what symbols they need

[MacPorts]

#57539: legacysupport-1.0: Let ports specify what symbols they need
----------------------------+--------------------
  Reporter:  ryandesign     |      Owner:  (none)
      Type:  defect         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:
      Port:  legacysupport  |
----------------------------+--------------------

Comment (by kencu):

 So to be clear, on 10.7, the library does not have any symbols for strnlen
 -- strnlen is not compiled into the library on that OS, nor are any of the
 other legacy symbols.

 On 10.7+, the library at present would only have the symbol for
 clock_gettime, which would be ignored by the linker unless something
 actually called for it.

 Turning the library linking on and off totally is a rather more
 complicated project of many options to turn on and off individual symbols,
 and I would tend to agree with Chris here, it would not appear to serve
 any purpose for the added complexity.

-- 
Ticket URL: <https://trac.macports.org/ticket/57539#comment:5>
MacPorts <https://www.macports.org/>
Ports system for macOS