[MacPorts] #54296: wxWidgets-3.0: fix issues after update to 3.0.3.1

[MacPorts]

#54296: wxWidgets-3.0: fix issues after update to 3.0.3.1
-------------------------------------------------+-------------------------
  Reporter:  mojca                               |      Owner:  mojca
      Type:  defect                              |     Status:  new
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:
Resolution:                                      |   Keywords:
      Port:  wxWidgets-3.0 wxgtk-3.0 p5-alien-   |
  wxwidgets p5-wx                                |
-------------------------------------------------+-------------------------

Comment (by kencu):

 wxWidgets-3.2 will not link cleanly on 10.6.8. I can get it to build by
 forcing it to use the 10.7SDK (like we do in libsdl2), but then it errors
 out in the link at the end, due to one moved framework and one missing
 framework on 10.6. It might or might not be possible to fix that, but I'm
 not up for sorting it out just now.

 Here's what I did, for future prospectors who might be interested in
 taking this further. I added this to the wxWidgets-3.2 portfile, just
 after the configure args:
 {{{
 ######  wxwidgets-3.2 - try to build on 10.6.8

 platform macosx {
     if {${os.major} <= 10} {
         # Build requires at least 10.7.3 SDK, even when targeting 10.6
         set lion_sdkpath ${developer_dir}/SDKs/MacOSX10.7.sdk
         if {[file exists $lion_sdkpath]} {
             configure.sdkroot $lion_sdkpath
             configure.args-replace --with-macosx-sdk=no --with-macosx-
 sdk=$lion_sdkpath
             configure.args-replace --with-macosx-version-min=no --with-
 macosx-version-min=10.6
         } else {
             pre-fetch {
                 error "Building $name @${version} on Mac OS X 10.6
 requires the MacOSX10.7.sdk to be present in ${developer_dir}/SDKs/"
             }
         }
     }
 }
 }}}

 and here are the link errors in the end, caused by differences between the
 10.6 and 10.7 SDK:
 {{{
 --->  Cleaning wxWidgets-3.2
 --->  Removing work directory for wxWidgets-3.2
 --->  Updating database of binaries
 --->  Scanning binaries for linking errors
 Could not open
 /System/Library/Frameworks/CoreMedia.framework/Versions/A/CoreMedia: Error
 opening or reading file (referenced from
 /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.1/lib/libwx_osx_cocoau_media-3.1.1.0.0.dylib)
 Could not open
 /System/Library/Frameworks/AVFoundation.framework/Versions/A/AVFoundation:
 Error opening or reading file (referenced from
 /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.1/lib/libwx_osx_cocoau_media-3.1.1.0.0.dylib)
 --->  Found 2 broken files, matching files to ports
 --->  Found 1 broken port, determining rebuild order
 You can always run 'port rev-upgrade' again to fix errors.
 The following ports will be rebuilt: wxWidgets-3.2 @3.1.0-git-20171103
 }}}

 So we'll leave wxWidgets-3.2 as unbuildable on < 10.7, as it currently is
 noted to be.

--
Ticket URL: <https://trac.macports.org/ticket/54296#comment:12>
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