Re: Trouble with LibTool on ARM

[Gary V . Vaughan]

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Hi Michael,

Thanks for the report.

On 29 Aug 2004, at 03:57, Michael McTails wrote:
> I believe I've run into an unusual Libtool issue on the ARM platform. 
> I've been working on building a native GCC tool-chain for the NSLU2 
> which is an ARM based device. Anyway, I've built a bunch of packages, 
> but some of time (such as gettext, and libtool itself) fail with 
> messages about .lo is not  a valid libtool object. Anyway, I thought 
> it might be just compiler bugs causing libtool to fail, but I can't 
> prove it was. Anyway, I included some of the failure messages, and 
> information from the proc file system. One important note: The NSLU 
> normally includes busybox and ash as it's sh replcement. I deleted 
> that symlink and replaced it with bash, but both shell generated the 
> same issues. --debug didn't give me any additional information.
>
> config.status: executing depfiles commands
> DATABANK:/opt/src/libtool-1.5.8 root# make
> Making all in .
> make[1]: Entering directory `/share/hdd/data/opt/src/libtool-1.5.8'
> CONFIG_FILES=libtoolize CONFIG_HEADERS= /bin/sh ./config.status
> config.status: creating libtoolize
> config.status: executing depfiles commands
> chmod +x libtoolize
> make[1]: Leaving directory `/share/hdd/data/opt/src/libtool-1.5.8'
> Making all in libltdl
> make[1]: Entering directory 
> `/share/hdd/data/opt/src/libtool-1.5.8/libltdl'
> make  all-am
> make[2]: Entering directory 
> `/share/hdd/data/opt/src/libtool-1.5.8/libltdl'
> /bin/sh ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I.     
> -g -O2 -c -o ltdl.lo ltdl.c
>  gcc -DHAVE_CONFIG_H -I. -I. -I. -g -O2 -c ltdl.c -o ltdl.o
> /bin/sh ./libtool --mode=link gcc  -g -O2   -o libltdl.la -rpath 
> /opt/lib -no-undefined -version-info 4:0:1 ltdl.lo -ldl
> libtool: link: `ltdl.lo' is not a valid libtool object
> make[2]: *** [libltdl.la] Error 1
> make[2]: Leaving directory 
> `/share/hdd/data/opt/src/libtool-1.5.8/libltdl'
> make[1]: *** [all] Error 2
> make[1]: Leaving directory 
> `/share/hdd/data/opt/src/libtool-1.5.8/libltdl'
> make: *** [all-recursive] Error 1
> DATABANK:/opt/src/libtool-1.5.8 root# make check
> Making check in .
> make[1]: Entering directory `/share/hdd/data/opt/src/libtool-1.5.8'
> make[1]: Nothing to be done for `check-am'.
> make[1]: Leaving directory `/share/hdd/data/opt/src/libtool-1.5.8'
> Making check in libltdl
> make[1]: Entering directory 
> `/share/hdd/data/opt/src/libtool-1.5.8/libltdl'
> /bin/sh ./libtool --mode=link gcc  -g -O2   -o libltdl.la -rpath 
> /opt/lib -no-undefined -version-info 4:0:1 ltdl.lo -ldl
> libtool: link: `ltdl.lo' is not a valid libtool object

This is an indication that the following expression is failing:

${SED} -e '2q' $arg | $GREP "^# Generated by ltmain.sh "

Look up the values of SED and GREP at the top of your libtool script,
and try (for example) this from your shell:

  $ /usr/bin/sed -e '2q' libltdl/ltdl.lo | \
      /usr/bin/grep "^# Generated by ltmain.sh "
  $ echo $?

I would be interested in learning exactly why this fails for you.  My 
guess is that your vendor's grep program is doing something odd, though 
possibly sed is failing...

> DATABANK:/opt/src/libtool-1.5.8 root# cat libltdl/ltdl.lo
> # ltdl.lo - a libtool object file
> # Generated by ltmain.sh - GNU libtool 1.5.8 (1.1220.2.117 2004/08/04 
> 14:12:05)
> #
> # Please DO NOT delete this file!
> # It is necessary for linking the library.
>
> # Name of the PIC object.
> pic_object=none
>
> # Name of the non-PIC object.
> non_pic_object='ltdl.o'

The file looks completely normal.  That is, the '# Generated by...' 
line ought to match correctly.

HTH,
        Gary.
- --
Gary V. Vaughan      ())_.  address@hidden,gnu.org}
Research Scientist   ( '/   http://tkd.kicks-ass.net
GNU Hacker           / )=   http://www.gnu.org/software/libtool
Technical Author   `(_~)_   http://sources.redhat.com/autobook

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