Re: [MacPorts] #65992: py310-pycryptodome fails to build on 10.5.8: error: #error No routines for aligned memory; error: ‘for’ loop initial declaration used outside C99 mode

[MacPorts]

#65992: py310-pycryptodome fails to build on 10.5.8: error: #error No routines for
aligned memory; error: ‘for’ loop initial declaration used outside C99 mode
-------------------------------------+-------------------------------------
  Reporter:  barracuda156            |      Owner:  catap
      Type:  defect                  |     Status:  assigned
  Priority:  Normal                  |  Milestone:
 Component:  ports                   |    Version:  2.7.2
Resolution:                          |   Keywords:  powerpc, leopard,
      Port:  py310-pycryptodome,     |  snowleopard
  py-pycryptodome                    |
-------------------------------------+-------------------------------------

Comment (by garoffoli):

 Replying to [comment:6 kencu]:
 > I personally find that making python ports do your bidding is hard.
 >
 > I had trouble getting the compiler_wrapper PortGroup to make this work.
 I suspect the needed linker flags were not available during the testing
 phase for posix_memalign test file.
 >
 > In the end, I added {{{PortGroup legacysupport 1.0}}} and hacked this
 workaround into the Portfile
 > {{{
 >     livecheck.type      none
 >
 > +    configure.cc         ${configure.cc} -std=c99
 -Wl,-lMacportsLegacySupport
 >
 >     test.run            yes
 > }}}
 >
 > and it worked, building with the default gcc-4.2:
 >
 > {{{
 > $ port -v installed  py310-pycryptodome
 > The following ports are currently installed:
 >   py310-pycryptodome @3.15.0_0 (active) requested_variants=''
 platform='darwin 9' archs='i386' date='2022-10-15T11:37:45-0700'
 > }}}
 >
 > and it seemed to do OK on the test suite:
 > {{{
 >
 ....................................................................................................................................................................................
 > ----------------------------------------------------------------------
 > Ran 2707 tests in 134.797s
 >
 > OK
 > }}}
 >
 > that at least proves that this port can be built. What the elegant fix
 might be remains to be determined.

 I tried this workaround with gcc7 on 10.4.11. It still didn't work at all.
 I need pycryptodome to try out LibreSpot-Python

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Ticket URL: <https://trac.macports.org/ticket/65992#comment:14>
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