Re: [Vala] How to mix vala code and C code in one automake-based project correctly?

[PCMan <pcman tw gmail com>]

If I did not get it wrong, it seems to generate a single header file "g
mpc-extras.h".
For what I want, I prefer generating file_a.[ch] for file_a.vala,
file_b.[ch] for file_b.vala, and file_c.[ch] for file_c.vala. Each vala file
can has its own generated *.c and *.h files.
Is this possible with autotools?

On Thu, Oct 27, 2011 at 3:25 PM, Qball Cow <qball aggervaccae nl> wrote:

> Gmpc does what you want in it build system. So you might want to look at
> it. Http://git.musicpd.org it mixes vala,c and gob. Vala is handled by
> automake (used to do it with custom rules) only issue atm is parallel build.
> Basically:
> 1. Write a binding file for your C code.
> 2. Make vala generate and use one header file for your vala files. This can
> be done by the vala_args makefile argument (see gmpc src/makefile).
>
> Good luck, feel free to mail if you need help.
>
> R,
>
> Q
> On Oct 27, 2011 6:54 AM, "PCMan" <pcman tw gmail com> wrote:
>
> > Hello,
> > I'm the developer of LXDE project and I started using Vala last night.
> > Most parts of our existing code are written in pure C with or without
> > GObject.
> > Now I want to do further development in vala.
> > To mix vala code with existing C code, I cannot find any good guide on the
> > internet.
> > Some existing guides are for writing vapi files to call C code in vala.
> > Others telling you how to compile vala code with automake or valac.
> >
> > However, none of them solve my problems.
> > I want to have a project developed with vala and C.
> > I need to call the functions and GObjects in C files from vala.
> > Also, I need to call vala generated objects and functions from my C code
> > as
> > well.
> > I cannot use the "valac -C --header xxxx.h" trick as valac is called by
> > automake.
> > In addition, if I write something like this in Makefile.am, it does not
> > work.
> >
> > bin_PROGRAMS=myprog
> > myprog_SOURCES= \
> >  file1.c \
> >  file2.c \
> >  file3.vala \
> >  file4.vala \
> >  file5.c
> >
> > In this way, C code will be treated as vala, or vala code will be treated
> > as
> > C.
> > Autotools do not seem to handle this well. What's the correct way to do
> > it?
> >
> > For calling vala code from C code, a generated *.h file is needed.
> > I tried adding "--header xxx.h" to VALA_FLAGS and it seemed to work.
> > However, it generated a huge single header file for all *.vala files
> > compiled rather than file1.h for file1.vala, file2.h for file2.vala, etc.
> > How to generate separate *.h files for every single vala file with
> > autotools?
> > Or, if this is not supported by autotools, can CMake do this?
> >
> > I hope these problems can be solved easily so I can do future development
> > in
> > Vala rather than having to keep C/GObject.
> >
> > Thank you all
> >
> > _______________________________________________
> > vala-list mailing list
> > vala-list gnome org
> > http://mail.gnome.org/mailman/listinfo/vala-list