FreeTDS Development Group

["Lowden, James K" <james.k.lowden AT alliancebernstein.com>]

I want to add /usr/local to the Sybase.so RPATH.  

I always dread upgrading DBD::Sybase because this always happens:

$ ldd $(find . -name Sybase.so)
./blib/arch/auto/DBD/Sybase/Sybase.so:
         -lct.4 => not found
         -lintl.0 => /usr/lib/libintl.so.0
         -ltds.5 => not found
         -lm.0 => /usr/lib/libm387.so.0
         -lm.0 => /usr/lib/libm.so.0

I can get around that by setting LD_RUN_PATH or by copying libct where
the run-time linker will find it.  But I'd really, really like not to do
that anymore.  I'd really like to set the RPATH in the ELF binary.  In
short, I want to pass:

        -R/usr/local/lib

or maybe

        -Wl,-R/usr/local/lib

or perhaps

        -Wl,-rpath/usr/local/lib

to the Makefile.PL, such that it will pass the arguments to the linker
when it builds the .so.  

Things I've tried:

1.  Setting LDFLAGS before starting cpan.
2.  Reading perlmodinstall, perldoc cpan, perldoc CPAN, perdoc Config
3.  Reading the README and README.freetds in the DBD::Sybase
distribution
4.  Googling for various combinations of perl, module, rpath, linker,
flags

For the record, I'm using gcc on NetBSD with Perl installed from pkgsrc
(www.pkgsrc.org).  pkgsrc puts packages in (and links to) /usr/pkg and
ignores /usr/local.  This is reflected here:

$  perl -e'use Config qw(config_sh); print config_sh()' | grep ldd
lddlflags=' -Wl,-R/usr/pkg/lib  -pthread --whole-archive -shared
-L/usr/pkg/lib'

When cpan links Sybase.so, it passes these arguments to gcc, as can be
seen from what's already installed:

$ readelf -d $(find /usr/pkg/lib -name Sybase.so | head -1) | grep rpath
 0x0000000f (RPATH)                      Library rpath:
[/usr/pkg/lib:/usr/pkg/lib/perl5/5.8.4/i386-netbsd/CORE]

Like I said, I want to add /usr/local to the RPATH.  

I've dodged and worked around this for too long.  Surely someone here
knows the answer or knows someone who does.  

Many thanks for your kind sage advice.  

--jkl


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