[MacPorts] #50199: gnuplot: opportunistically uses gtk2 when building with wxwidgets enabled

[MacPorts]

#50199: gnuplot: opportunistically uses gtk2 when building with wxwidgets enabled
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 Reporter:  devans@…  |      Owner:  mojca@…
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:
 Keywords:            |       Port:  gnuplot
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 I ran into this issue when testing p5-graphics-gnuplotif.

 When building using the +wxwidgets variant (default), gnuplot will use
 gtk2 if available and enable "gdk/gtk tweaks" to the configuration.  This
 could be fixed by adding a dependency on gtk2 but that may not what you
 want here.  The alternative seems to be patching or otherwise overriding
 configure.in to disable this behavior -- there's no configuration option
 to do this for you.

 Here's the relevant section of configure.in:
 {{{
 if test "${enable_wxwidgets_ok}" = yes ; then
   WX_CXXFLAGS="`$WX_CONFIG --cxxflags | sed 's/-fno-exceptions//'`
 $CAIROPANGO_CFLAGS"
   WX_LIBS="`$WX_CONFIG --libs` $CAIROPANGO_LIBS"

   dnl Check for fork(), used for the 'persist' effect
   AC_FUNC_FORK

   dnl Check for gtk (raise/lower tweaks)
   PKG_CHECK_MODULES(GTK, [gtk+-2.0], have_gtk=yes, have_gtk=no)
   if  test "${have_gtk}" = yes ; then
     AC_DEFINE(HAVE_GTK, 1, [Define to use gtk/gdk tweaks])
     WX_CXXFLAGS="$WX_CXXFLAGS $GTK_CFLAGS"
     WX_LIBS="$WX_LIBS $GTK_LIBS"
   fi
 }}}

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Ticket URL: <https://trac.macports.org/ticket/50199>
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