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Date:	Thu, 5 Nov 2009 14:08:05 +0000 (GMT)
From:	Marco Atzeri <marco_atzeri AT yahoo DOT it>
Subject:	Re: question on libtool usage/limitation
To:	Dave Korn <dave DOT korn DOT cygwin AT googlemail DOT com>
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--- Gio 5/11/09, Dave Korn  ha scritto:

> Data: Gioved=EC 5 novembre 2009, 14:21
> Marco Atzeri wrote:
> >=20
> > --- Gio 5/11/09, Dave Korn=A0 ha scritto:
>=20
> >> Perhaps you'd better show us how you've defined
> the libtool primaries,=20
> >> liboctave_la_LINK/LIBS/LDADD/xFLAGS/whatever in
> particular.
>=20
> > I suppose that I should replace the simple
> "-llibcholmod"
> > with one of the methods mentioned in the libtool
> documentation:
>=20
> > but I need to understand, which and how to specify the
> static lib
> > /usr/lib/libcholmod.a (and the others)
>=20
> =A0 Perhaps you'd better show us how you've defined the
> libtool primaries,
> liboctave_la_LINK/LIBS/LDADD/xFLAGS/whatever in
> particular.=A0 I *think* (but
> need to do some digging through my inbox to check up) that
> the solution is
> going to be something like adding the explicit path to the
> .a file into the
> correct one of them so that the objects from the archive
> are available to the
> link but libtool doesn't try to interpret it as a library
> dependency.
>=20
> =A0 =A0 cheers,
> =A0 =A0 =A0 DaveK
>=20

Hi Dave,
I just found that if I replace that Suitesparse=20
libs requirement from (as example)

AMD_LIBS =3D -lamd

to

AMD_LIBS =3D -Wc,-lamd

the build seems to work. But this is just a workaround.

About your question on liboctave_la_LINK/LIBS/LDADD/xFLAGS/

we currently have :

octlib_LTLIBRARIES =3D liboctave.la

LINK_DEPS =3D \
  $(RLD_FLAG) \
  ../libcruft/libcruft.la \
  $(SPARSE_LDFLAGS) $(SPARSE_XLIBS) \
  $(ARPACK_LIBS) \
  $(QRUPDATE_LIBS) \
  $(FFTW_LDFLAGS) $(FFTW_XLIBS) \
  $(LAPACK_LIBS) $(BLAS_LIBS) \
  $(READLINE_LIBS) $(TERM_LIBS) \
  $(LIBGLOB) $(REGEX_LIBS) $(DL_LIBS) \
  $(FLIBS) \
  $(PTHREAD_LIBS) $(LIBS)

liboctave_la_SOURCES =3D \
  $(LIBOCTAVE_SOURCES) \
  $(LIBOCT_READLINE_SOURCES) \
  $(LIBOCT_PATHSEARCH_SOURCES)

liboctave_la_LIBADD =3D $(LINK_DEPS)

liboctave_la_LDFLAGS =3D -release $(version)

But I see no liboctave_la_LIBS=20

The SPARSE libs are real static libs.

$ cygcheck -l libSuiteSparse-devel |grep lib
/usr/lib/libamd.a
/usr/lib/libbtf.a
/usr/lib/libcamd.a
/usr/lib/libccolamd.a
/usr/lib/libcholmod.a
/usr/lib/libcolamd.a
/usr/lib/libcsparse.a
/usr/lib/libcxsparse.a
/usr/lib/libklu.a
/usr/lib/libspqr.a
/usr/lib/libumfpack.a

while all the other libs are dinamic ones as :

$ cygcheck -l libarpack-devel |grep lib
/usr/lib/libarpack.a
/usr/lib/libarpack.dll.a
/usr/lib/libarpack.la

Regards
Marco




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