[MacPorts] #74285: legacy-support does not work correctly with Python packages

[MacPorts]

#74285: legacy-support does not work correctly with Python packages
----------------------------+--------------------
 Reporter:  barracuda156    |      Owner:  (none)
     Type:  defect          |     Status:  new
 Priority:  Normal          |  Milestone:
Component:  legacy-support  |    Version:  2.12.5
 Keywords:                  |       Port:
----------------------------+--------------------
 Simple example: take `py-dukpy` port, build 0.6.0 version (which needs
 `clock_gettime`):

 {{{
 # -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c
 -basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4

 PortSystem          1.0
 PortGroup           legacysupport 1.1
 PortGroup           python 1.0

 # clock_gettime
 legacysupport.newest_darwin_requires_legacy 15

 name                py-dukpy
 version             0.6.0
 revision            0
 categories-append   devel
 license             MIT
 maintainers         {@barracuda156 macos-powerpc.org:barracuda}
 openmaintainer

 description         Simple JavaScript interpreter
 long_description    {*}${description} for Python.
 homepage            https://github.com/amol-/dukpy
 checksums           rmd160  504c008aa439039b787195accb1d9a850a989294 \
                     sha256
 f8b1d1f75c6a5be9b525dc80f05b6c869a671481be689da146b2c6937b3450ee \
                     size    2629112

 python.versions     310 311 312 313 314
 }}}

 The build succeeds, but `legacy-support` is not linked: run `dukpy-3.14`
 (or whichever python subport), and you get `symbol not found:
 _clock_gettime`.

-- 
Ticket URL: <https://trac.macports.org/ticket/74285>
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