[petsc-dev] Experimental GNU make build system

[Satish Balay]

On Tue, 4 Jun 2013, Satish Balay wrote:

> On Mon, 3 Jun 2013, Satish Balay wrote:
> 
> > On Mon, 3 Jun 2013, Jed Brown wrote:
> > 
> > > Satish Balay <balay at mcs.anl.gov> writes:
> > > 
> > > > Perhaps we should split up AR command into multiple invocations? [for windows?]
> > > 
> > > We discussed this earlier in this thread [1]:
> > > 
> > > http://mail-archive.com/search?l=mid&q=87bo81sjsr.fsf@mcs.anl.gov
> > > 
> > > I prefer response files to incremental AR because response files also
> > > work for shared libraries.
> > 
> > Win32fe isn't handling response files - so I think its easier to have
> > conf/gmakegen.py split up the archiver into multiple invocations for
> > windows/win32fe usage - than fix win32fe. [since we are planing on
> > eliminating win32fe anyway]
> 
> ok - the following works.
> 
> To use full path names [or long file names] with '$@.args' - we'll
> have to fix win32fe to do the cygwin-to-dos path converstion for all
> '@' options.
> 
> Also - I don't think we can't rely on $(file) from gnu-make-4

hm - ar.args will have objfiles listed in cygwin relative path.
Somehow 'lib' tool is not breaking with it. [but its not guaranteed to
work. So these paths will also have to be converted to windows paths.

Does $(file) do this conversion?

satish

> 
> Satish
> 
> ------------
> balay at msnehalem2 ~/petsc.clone
> $ git diff gmakefile
> diff --git a/gmakefile b/gmakefile
> index bf9ce21..3590698 100644
> --- a/gmakefile
> +++ b/gmakefile
> @@ -69,8 +69,10 @@ $(libpetsc_static) : obj := $(srcs.o)
> 
>  %.$(AR_LIB_SUFFIX) : $$(obj) | $$(@D)/.DIR
>         @$(RM) $@
> -       $(call quiet,AR) $(AR_FLAGS) $@ $^
> +       @printf "$^" > ar.args
> +       $(call quiet,AR) $(AR_FLAGS) $@ @ar.args
>         $(call quiet,RANLIB) $@
> +       @$(RM) ar.args
> 
>  # with-single-library=0
>  libpkg = $(foreach pkg, $1, $(LIBDIR)/libpetsc$(pkg).so)
> 
> balay at msnehalem2 ~/petsc.clone
> $ make -f gmakefile PETSC_ARCH=arch-cmplx -j 20 V=1
> /home/balay/petsc.clone/bin/win32fe/win32fe lib -a /home/balay/petsc.clone/arch-cmplx/lib/libpetsc.lib @ar.args
> kspams.o : warning LNK4221: no public symbols found; archive member will be inaccessible
> /usr/bin/true /home/balay/petsc.clone/arch-cmplx/lib/libpetsc.lib
> 
> balay at msnehalem2 ~/petsc.clone
> $ make PETSC_ARCH=arch-cmplx test
> Running test examples to verify correct installation
> Using PETSC_DIR=/home/balay/petsc.clone and PETSC_ARCH=arch-cmplx
> C/C++ example src/snes/examples/tutorials/ex19 run successfully with 1 MPI process
> Fortran example src/snes/examples/tutorials/ex5f run successfully with 1 MPI process
> Completed test examples
> 
>