[Clfs-dev] Help cross coimpiling libvorbis to ARM

[Luís Vitório Cargnini]

my file exist and its content is the following:

(enterprise:~) lvcargnini% cat
/opt/arm-linux/arm-linux-gnueabi/usr/lib/libogg.la
# libogg.la - a libtool library file
# Generated by ltmain.sh - GNU libtool 1.5.6 (1.1220.2.95 2004/04/11
05:50:42) Debian: 224 $
#
# Please DO NOT delete this file!
# It is necessary for linking the library.

# The name that we can dlopen(3).
dlname='libogg.so.0'

# Names of this library.
library_names='libogg.so.0.5.3 libogg.so.0 libogg.so'

# The name of the static archive.
old_library='libogg.a'

# Libraries that this one depends upon.
dependency_libs=''

# Version information for libogg.
current=5
age=5
revision=3

# Is this an already installed library?
installed=yes

# Should we warn about portability when linking against -modules?
shouldnotlink=no

# Files to dlopen/dlpreopen
dlopen=''
dlpreopen=''

# Directory that this library needs to be installed in:
libdir='/usr/lib'
(enterprise:~) lvcargnini

the problem is how to cross compilate another softwares, with some
other librarier that do not present this error ?
why it is not working and how  could I fix this ?
because my libasound.la is similar but I can cross-compilate another
softwares, linking with libasound.so, without any error.
So the problem remains on lbtool, but how to fix this ?


On Feb 7, 2008 10:08 AM, Bryan Kadzban <bryan at kadzban.is-a-geek.net> wrote:
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> Your issue is because it's using libtool.  Edited output:
>
> Ivan Kabaivanov wrote:
> > On Thursday 07 February 2008, Luís Vitório Cargnini wrote:
> >> /bin/sh ../libtool  --mode=link arm-linux-gnueabi-gcc  <flags>
> >>   -o libvorbis.la <flags> <.lo files> -logg   -lm
>
> This is telling libtool to link using that particular gcc, sending its
> output to libvorbis.la, embedding each of the .lo files, and also
> linking against -logg and -lm.  When libtool sees -logg, it looks for a
> libogg.la file, not libogg.so (like the compiler).  It then uses the
> contents of libogg.la to build the real link command.  (It also does
> this with -lm, if a libm.la exists.  It falls back to .so if the .la
> doesn't exist.)
>
> Your issue is that the libogg.la file that it's using has
> /usr/lib/libogg.so in it.  I'm guessing that's because it's picking up
> the libogg.la from your host, not the cross-compiled one?  There may not
> even be a cross-compiled one; it would depend on whether libtool was
> used in the libogg cross-compile.
>
> > Do you have anything in LDFLAGS?  Is /usr/lib/libogg.so in the
> > Makefile?  If yes, remove it.
>
> /usr/lib/libogg.so won't be in the Makefile; it'll be in a .la file
> somewhere on the host that libtool is picking up.  libtool should be
> finding /opt/arm-linux/arm-linux-gnueabi/usr/lib/libogg.la, but if that
> file doesn't exist, it'll fall back to /usr/lib/libogg.la (which is the
> wrong file, obviously).
>
> I'm not sure how to fix it if the .la file doesn't exist.  You could
> manually run the link command (not the libtool version, but the "raw"
> version that calls arm-linux-gnueabi-gcc directly), replacing the
> incorrect libogg.so with the correct one.  But that will only work this
> time around; it won't fix other programs that try to use libtool to link
> against this cross-compiled libogg.
>
> If the .la file does exist in /opt, then I'm guessing something is wrong
> with libtool's search path?  Or the .la file in /opt refers to /usr/lib
> instead of /opt/.../lib; that could be too.
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Thanks && Regards
M.Sc. B.Sc. Luís Vitório Cargnini
IEEE Member
Electrical Engineer Faculty @ PUCRS
Ipiranga Avenue, 6681 – Building 30
P.O. Box: 90619-900 – Porto Alegre/RS
Phone: +55 51 3320 3500  extension: 7696
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