[MacPorts] #43738: gnuplot: upgrade to 5.0

[MacPorts]

#43738: gnuplot: upgrade to 5.0
----------------------+----------------------
  Reporter:  mojca@…  |      Owner:  mojca@…
      Type:  update   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:  haspatch
      Port:  gnuplot  |
----------------------+----------------------

Comment (by pixilla@…):

 I was not aware of #!diff :)

 How about this:
 {{{
 #!diff
 Index: math/gnuplot/Portfile
 ===================================================================
 --- math/gnuplot/Portfile       (revision 120045)
 +++ math/gnuplot/Portfile       (working copy)
 @@ -100,7 +100,6 @@
  }

  variant pangocairo description "Enable cairo-based terminals" {
 -    depends_lib-append      path:lib/pkgconfig/pango.pc:pango
      configure.args-delete   --without-cairo
  }

 @@ -111,7 +110,7 @@

  variant wxwidgets description "Enable wxt terminal" {
      wxWidgets.use           wxWidgets-3.0
 -    depends_lib-append      port:${wxWidgets.port}
 path:lib/pkgconfig/pango.pc:pango
 +    depends_lib-append      port:${wxWidgets.port}
      configure.args-delete   --disable-wxwidgets
      configure.args-append   --with-wx-config=${wxWidgets.wxdir}
  }
 @@ -138,6 +137,9 @@
      default_variants-append +wxwidgets
  }

 +if {[variant_isset pangocairo] || [variant_isset wxwidgets]} {
 +    depends_lib-append      path:lib/pkgconfig/pango.pc:pango
 +}
  # Building and installing TeX macro files for TikZ could/should be done
 by gnuplot's Makefile,
  # but without a patch that would require a dependency on texlive.
  # Apart from that the files would fly to the wrong place in TDS,
 }}}

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Ticket URL: <https://trac.macports.org/ticket/43738#comment:11>
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