[csw-devel] libtool reordering runpath and LD_OPTIONS

[Dagobert Michelsen]

Hi,

I'm still working on automated 32/64 bit builds and still encounter
new strange things. This time I have an issue with libtool. This
command is issues during make when comiling
libvorbis/trunk/work/build-isa-amd64/libvorbis-1.2.0/examples

opencsw# /bin/bash ../libtool --tag=CC   --mode=link /opt/studio/SOS11/ 
SUNWspro/bin/cc  -O -xO3 -xarch=amd64 -I/opt/csw/include - 
DUSE_MEMORY_H  -xarch=amd64 -L/opt/csw/lib/64 -R/opt/csw/lib/\\\ 
$ISALIST -R/opt/csw/lib/64 -o seeking_example seeking_example.o ../lib/ 
libvorbisfile.la ../lib/libvorbis.la

This looks good, but libtool reorders the runpath:

/opt/studio/SOS11/SUNWspro/bin/cc -O -xO3 -xarch=amd64 -I/opt/csw/ 
include -DUSE_MEMORY_H -xarch=amd64 -o .libs/seeking_example  
seeking_example.o  -L/opt/csw/lib/64 ../lib/.libs/libvorbisfile.so / 
root/mgar/pkg/libvorbis/trunk/work/build-isa-amd64/libvorbis-1.2.0/ 
lib/.libs/libvorbis.so ../lib/.libs/libvorbis.so /opt/csw/lib/64/ 
libogg.so -lm -R/opt/csw/lib/64 -R/opt/csw/lib/\$ISALIST
ld: warning: file ../lib/.libs/libvorbis.so: linked to /root/mgar/pkg/ 
libvorbis/trunk/work/build-isa-amd64/libvorbis-1.2.0/lib/.libs/ 
libvorbis.so: attempted multiple inclusion of file
creating seeking_example

Putting -R/opt/csw/lib/64 before $ISALIST is pretty pointless as
$ISALIST then never will be used as the library is found earlier.
Debugging the libtool-shellscript, umh, does not reveal any secrets.
It looks like libtool assembles the runpath dynamically from all
runpathes from libraries the to be linked lib depends on and
than reorders it somehow. If I use LD_OPTIONS I can get it
to work, but I understood from the past discussions that
LD_OPTIONS is a Bad Thing(tm).

Any libtool experts around who can enlighten me how to do this right?


Best regards

-- Dago