[MacPorts] #69546: py312-matplotlib fails to install on eMac with Leopard 10.5.8 - all dependencies installed.

[MacPorts]

#69546: py312-matplotlib fails to install on eMac with Leopard 10.5.8 - all
dependencies installed.
----------------------------+------------------------
  Reporter:  ilovecrts      |      Owner:  reneeotten
      Type:  defect         |     Status:  closed
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.9.1
Resolution:  fixed          |   Keywords:
      Port:  py-matplotlib  |
----------------------------+------------------------

Comment (by kencu):

 this error:
 {{{
 error for object 0xa06da3dc: Non-aligned pointer being freed
 }}}

 represents an unfavourable interaction between the new libstdc++.dylib
 from the gcc7/libgcc7 ports, and the old old /usr/lib/libstdc++.dylib that
 comes with Leopard 10.5.

 Basically, an object is being created using one libstdc++, then passed to
 the other one. But the library has changed, and the objects no longer
 match.

 We have a workaround for this issue, but it requires identifying exactly
 which executable is triggering the error.

-- 
Ticket URL: <https://trac.macports.org/ticket/69546#comment:13>
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