[MacPorts] #63251: GILDAS build fail on Big Sur / arm64

[MacPorts]

#63251: GILDAS build fail on Big Sur / arm64
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  Reporter:  rampante  |      Owner:  bardeau
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  gildas    |
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Comment (by bardeau):

 Hi,

 the error for the "3 broken files" was fixed by
 https://github.com/macports/macports-ports/pull/11535 a few days ago.

 However, another error is raised by MacPorts:
 {{{
 --->  No broken files found.
 gildas is using libstdc++ (this installation is configured to use libc++)
 --->  Found 1 broken port, determining rebuild order
 DEBUG: Broken: gildas
 DEBUG: Processing port gildas @0:202107a_1+gcc11
 You can always run 'port rev-upgrade' again to fix errors.
 The following ports will be rebuilt: gildas @202107a+gcc11
 Continue? [Y/n]:
 }}}
 I assume that the statement "gildas is using libstdc++ (this installation
 is configured to use libc++)" is the reason for declaring gildas as
 broken.

 During the compilation on my local machine, the C++ sources are indeed
 compiled by g++ (MacPorts gcc11 11.1.0_2) 11.1.0. Why does MacPorts says
 "this installation is configured to use libc++"? What should be done to
 avoid this error?

 This looks very similar this ticket [ticket:56554].

-- 
Ticket URL: <https://trac.macports.org/ticket/63251#comment:2>
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