[MacPorts] #56415: vapor @2.2.4: can't find proj headers

[MacPorts]

#56415: vapor @2.2.4: can't find proj headers
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  Reporter:  ryandesign  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  vapor       |
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Comment (by barracuda156):

 It probably needs explicit pointing to headers, and possibly explicit
 configure option to use `proj_api.h` or not.
 There are a number of `R` packages using those, like:
 {{{
 build.args-append   --configure-args="--with-proj-
 include=${prefix}/lib/${proj_v}/include \
                         --with-proj-lib=${prefix}/lib/${proj_v}/lib \
                         --with-proj-
 share=${prefix}/lib/${proj_v}/share/proj"
 }}}

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Ticket URL: <https://trac.macports.org/ticket/56415#comment:3>
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