[MacPorts] #49235: policykit 0.113 cannot be built on PPC Tiger, Mac OS X 10.4.11, because Availability.h not found

[MacPorts]

#49235: policykit 0.113 cannot be built on PPC Tiger, Mac OS X 10.4.11, because
Availability.h not found
------------------------------+----------------------------
  Reporter:  Peter_Dyballa@…  |      Owner:  devans@…
      Type:  defect           |     Status:  assigned
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:  tiger haspatch
      Port:  policykit        |
------------------------------+----------------------------
Changes (by devans@…):

 * status:  new => assigned
 * version:  2.3.4 =>


Comment:

 Replying to [ticket:49235 Peter_Dyballa@…]:
 > This can be avoided by adding another guard:
 >
 > {{{
 > +#ifdef __APPLE__
 > +#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1050 ||
 __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050
 > +#include <Availability.h>
 > +#endif
 > +#if __MAC_OS_X_VERSION_MIN_REQUIRED <= 1060
 > }}}

 Yes, thanks for reminding me of this issue.  But, after looking things
 over to refresh my memory, I would suggest a slightly different
 modification as follows:

 {{{
 +#ifdef __APPLE__
 +#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050
 +#include <Availability.h>
 +#else
 +#include <AvailabilityMacros.h>
 +#endif
 +#if __MAC_OS_X_VERSION_MIN_REQUIRED <= 1060
 }}}

 The rationale is that __MAC_OS_X_VERSION_MIN_REQUIRED is defined in
 Availability.h, so using the built-in compiler preprocessor definition
 __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ is probably the only part
 that works.  AvailabilityMacros.h serves the same purpose as
 Availability.h on the older OS versions and should be available back to
 10.2 if I remember correctly.

 Can you test this modification and see if it works? I'm thinking there are
 probably some other issues with this port on your platform as well.  The
 pam configuration for instance.  Is #45832 still an issue with 0.113? Also
 #45921.

-- 
Ticket URL: <https://trac.macports.org/ticket/49235#comment:2>
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