On Thu, 2009-03-26 at 18:13 +0000, Maciej Piechotka wrote:
> Jürg Billeter <j <at> bitron.ch> writes:
>
> > I understand the issue. Unfortunately, it's not easy to solve. One issue
> > is that you might need multiple #if in the generated code for a single
> > #if in the Vala code - e.g. for #include directives. It would also
> > require the Vala compiler to support dealing with multiple declarations
> > of the same method for different conditions, which would make semantic
> > and flow analysis a lot more difficult.
> >
> > I'd be happy to hear proposals how we could solve this in a
> > non-intrusive way.
> >
>
> May be static if or something like that?
>
> void my_method () {
> [StaticIf]
> if (vala.pkg.gtk+-2.0.version > 2.4.0") {
> // Use new gtk+
> } else {
> // Use legacy gtk+
> }
> }
The exact syntax is not the main issue. The question is how to support
conditional compilation in such a way that we can keep the conditions in
the generated C code. Otherwise, we cannot support conditionals with
projects that distribute the generated C code in the source tarballs.
Jürg
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