[MacPorts] #69688: legacy-support headers don't honor __DARWIN_C_LEVEL

[MacPorts]

#69688: legacy-support headers don't honor __DARWIN_C_LEVEL
-----------------------------+-----------------------
  Reporter:  fhgwright       |      Owner:  fhgwright
      Type:  defect          |     Status:  closed
  Priority:  Low             |  Milestone:
 Component:  ports           |    Version:  2.9.3
Resolution:  fixed           |   Keywords:
      Port:  legacy-support  |
-----------------------------+-----------------------
Changes (by fhgwright):

 * status:  assigned => closed
 * resolution:   => fixed


Comment:

 In [changeset:"beb746704fad6db0223fed77ca68a3ab9712fb5f/macports-legacy-
 support" beb746704fad6db0223fed77ca68a3ab9712fb5f/macports-legacy-support]
 (master):
 {{{
 #!ConfigurableCommitTicketReference repository="macports-legacy-support"
 revision="beb746704fad6db0223fed77ca68a3ab9712fb5f"
 Add __DARWIN_C_LEVEL conditionals.

 This adds conditionals on __DARWIN_C_LEVEL matching the ones in the
 SDK headers that provide the relevant functions.  These conditionals
 exist to allow building against an older version of the standard,
 without risk of collisions between recently added functions and
 same-named functions in the project.  This change extends that
 behavior to the functions provided by legacy-support.

 Since sys/stdio.h is unavailable prior to 10.7, our sys/stdio.h
 includes sys/cdefs.h in that case to get the __DARWIN_C_* defs.

 Closes: https://trac.macports.org/ticket/69688

 Also makes a couple of cosmetic cleanups to affected headers.

 TESTED:
 Builds and passes tests on all platforms, including the new tests for
 the various __DARWIN_C_LEVEL cases.
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/69688#comment:2>
MacPorts <https://www.macports.org/>
Ports system for macOS