gnuplot: question about wxWidgets(-devel) & Universal variants

[Ryan Schmidt]

On Mar 11, 2012, at 18:51, Mojca Miklavec wrote:

> I would like to use gnuplot with wxt terminal (wxWidgets). The current
> Portfile uses
> 
>    variant wxwidgets description "Enable wxWidgets front-end" {
>        depends_lib-append      port:wxWidgets
>        configure.args-delete   --disable-wxwidgets
>        configure.args-append   --with-wx-config=${prefix}/bin/wx-config
>    }
>    if {[variant_isset wxwidgets]} {
>        # wxWidgets is not universal and is 32-bit only
>        universal_variant       no
>        supported_archs         i386 ppc
>    }
> 
> however wxWidgets 2.8 only support Carbon (= only ppc and i386). I
> have tried to modify the gnuplot's Portfile to use wxWidgets 2.9. The
> following code works for me (Lion x86_64):
> 
>    variant wxwidgets description "Enable wxWidgets front-end" {
>        depends_lib-append      port:wxWidgets-devel
>        configure.args-delete   --disable-wxwidgets
>        configure.args-append   --with-wx-config=${prefix}/bin/wx-config
>    }
>    if {[variant_isset wxwidgets]} {
>        if {${configure.compiler} == "clang"} {
>            configure.compiler llvm-gcc-4.2
>        }
>    }
> 
> but since many other ports depend on wxWidgets (conflicting with
> wxWidgets-devel), it might be undesirable to put the code above to
> gnuplot's Portfile. Also, for anyone using ppc or i386 the version 2.8
> of wxWidgets might be perfectly OK.
> 
> How exactly should the code be written to enable compiling 64-bit
> version of gnuplot with wxt terminal, without interfering with other
> ports and without breaking functionality for 32-bit architectures?
> Once/if that question is answered, I have a Portfile for the new
> gnuplot 4.6 ready to be committed.

The simplest solution for us would be for the developers of wxWidgets to finally release a stable 64-bit compatible version of their software. Then we could update the wxWidgets portfile to that version and remove all the 32-bit forcing in all the ports that do that.