[mpich-discuss] Changes to MPICH2

[Pavan Balaji]

You can see src/mpid/ch3/src/Makefile.sm for an example Makefile.sm that 
compiles a bunch of C files and adds them to the libmpich.a library.

  -- Pavan

Eduardo Kienetz wrote:
> On Tue, Apr 7, 2009 at 9:24 AM, Pavan Balaji <balaji at mcs.anl.gov 
> <mailto:balaji at mcs.anl.gov>> wrote:
> 
>         I was able to add my new parameter and when calling configure
>         with it,
>         I then have #define HAVE_PERUSE set to 1 in mpichconf.h
> 
> 
>     mpichconf.h is autogenerated by configure, so you shouldn't change
>     that directly. If you add a AC_DEFINE() inside configure.in
>     <http://configure.in>, it'll automatically get added to mpichconf.h
> 
> 
> I didn't change mpichconf.h directly, I meant that once I called 
> configure --enable-peruse it automatically added the HAVE_PERUSE 1 to 
> mpichconf.h. Well, at least that I got right :)
> 
>     My question now is: how do I actually make src/peruse/*.c into MPICH2?
> 
>     Actually, it's not too complicated once you know how things work.
>     First, you need your USE_PERUSE definition to go into mpichconf.h,
>     so as I pointed out, it needs a configure.in <http://configure.in>
>     change at the top-level. Then, you need simplemake to recognize your
>     new directory --- all this means is that you add the src/peruse
>     directory into the src/Makefile.sm file (this will generate
>     src/Makefile.in). Finally, you want src/Makefile to be generated, so
>     configure will need to know about src/Makefile.in; so you want to
>     add src/Makefile into the AC_OUTPUT() section of the top-level
>     configure.  That's it.
> 
>     I've attached a patch based on the svn trunk for your reference. 
> 
> 
> So, I have followed your instructions, and found out that I also had to 
> create an src/peruse/Makefile.sm (when running maint/updatefiles it 
> complained about that). So I looked at src/pmi/Makefile.sm and figured 
> that since my src/peruse doesn't have any subdirs I could just have: 
> SUBDIRS = .
> However, to test if it would compile src/peruse/*.c , I created a 
> peruse.c with garbage, that should lead to an error, but it didn't (that 
> is, it didn't consider the *.c files) :(
> 
> What am I missing? I'm eager to get started with the coding.
> 
> Thank you very much,
> 
> -- 
> Eduardo Bacchi Kienetz

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji