[MacPorts] #64655: libsdl2: find some version to use for Tiger and Leopard

[MacPorts]

#64655: libsdl2: find some version to use for Tiger and Leopard
---------------------------+------------------------------
  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.1
Resolution:                |   Keywords:  powerpc, leopard
      Port:  libsdl2       |
---------------------------+------------------------------

Comment (by barracuda156):

 Replying to [comment:13 kencu]:
 > Replying to [comment:12 barracuda156]:
 > {{{
 > > 2022-03-02 02:07:01.977 test[38833:903] INFO: SDL_LoadBMP Error:
 Couldn't open image.bmp
 > }}}
 >
 > Yes, looks like it can't load (? can't find) image.bmp. Perhaps that
 example won't work on any system without it?

 Thank you. Indeed, it tried to actually open a window (which immediately
 closed). With 2.0.3 I got just an error straightaway.

 > Try building one of the dozens of ports that use libsdl2 instead. Pretty
 much all the ones I ever tried work quite well on 10.6.8.

 Yes, I always try to build dependencies when I build a port without being
 sure it has been built correctly. Building `smpeg2` worked for instance.
 Strangely, on 10A190 `ffmpeg` complained about version after I upgraded
 `libsdl2` from 2.0.3 to 2.0.9. Didn't have time to rebuild it yet or
 figure out what it got upset about. As I recall, with an earlier 2.0.3 it
 silently used it to build itself. (Cannot test `ffmpeg` on 10.6.8 since
 `x265` remains broken, and Cmake/meson build system is a nightmare: simple
 things that take 2 min to fix with gcc + gnumake, become nontrivial
 problems with the former.)

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Ticket URL: <https://trac.macports.org/ticket/64655#comment:16>
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