Subject: bl3 eating -Wl,--rpath -Wl,/path flags to gcc
To: None <tech-pkg@NetBSD.org>
From: Dan McMahill <dmcmahill@NetBSD.org>
List: tech-pkg
Date: 03/24/2004 19:04:09 
Trying to debug a shared library issue, I found that the bl3 scripts seem to be
eating a required -Wl,--rpath -Wl,/path/to/shared/lib flag to gcc.  Any ideas
on how to stop this from happening?  In the build log, I see:


libtool  --mode=link gcc -Wl,-R/usr/pkg/pvm3/lib/NETBSDALPHA -O2 -mieee \
   -I/usr/pkg/include -I../../include -DCTIMEISTIMET -DSOCKADHASLEN \
   -DRSHCOMMAND=\"/usr/bin/ssh\"  -DHASERRORVARS -DNOREXEC -DNEEDMENDIAN \
   -DSYSERRISCONST -o hello ../../examples/hello.c  -L../../lib/NETBSDALPHA -lpvm3 

*** [buildlink3] Warning: libtool detected -L../../lib/NETBSDALPHA
*** [buildlink3] Warning: libtool replaced -lpvm3 with ../../lib/NETBSDALPHA/libpvm3.la

gcc -O2 -mieee -I/usr/pkgsrc-current/parallel/pvm3/work.bondage/.buildlink/include \
    -I../../include -DCTIMEISTIMET -DSOCKADHASLEN -DRSHCOMMAND=\"/usr/bin/ssh\" \
    -DHASERRORVARS -DNOREXEC -DNEEDMENDIAN -DSYSERRISCONST -o .libs/hello \
    ../../examples/hello.c  ../../lib/NETBSDALPHA/.libs/libpvm3.so \
    -L/usr/pkgsrc-current/parallel/pvm3/work.bondage/.buildlink/lib \
    -L/usr/pkgsrc-current/parallel/pvm3/work.bondage/pvm3/lib/NETBSDALPHA \
    -Wl,--rpath -Wl,/usr/pkg/pvm3/lib/NETBSDALPHA

so, we have passed -Wl,--rpath -Wl,/usr/pkg/pvm3/lib/NETBSDALPHA to gcc.  Now in 
work.bondage/.work I see:

[*] /usr/pkgsrc-current/parallel/pvm3/work.bondage/.buildlink/bin/gcc -O2 -mieee \
    -I/usr/pkgsrc-current/parallel/pvm3/work.bondage/.buildlink/include \
    -I../../include -DCTIMEISTIMET -DSOCKADHASLEN -DRSHCOMMAND="/usr/bin/ssh" \
    -DHASERRORVARS -DNOREXEC -DNEEDMENDIAN -DSYSERRISCONST -o .libs/hello \
    ../../examples/hello.c ../../lib/NETBSDALPHA/.libs/libpvm3.so \
    -L/usr/pkgsrc-current/parallel/pvm3/work.bondage/.buildlink/lib \
    -L/usr/pkgsrc-current/parallel/pvm3/work.bondage/pvm3/lib/NETBSDALPHA \
    -Wl,--rpath -Wl,/usr/pkg/pvm3/lib/NETBSDALPHA

<.> /usr/pkgsrc-current/parallel/pvm3/work.bondage/.gcc/bin/gcc -O2 -mieee \
    -I/usr/pkgsrc-current/parallel/pvm3/work.bondage/.buildlink/include \
    -I../../include -DCTIMEISTIMET -DSOCKADHASLEN -DRSHCOMMAND=\"/usr/bin/ssh\" \
    -DHASERRORVARS -DNOREXEC -DNEEDMENDIAN -DSYSERRISCONST -o .libs/hello \
    ../../examples/hello.c ../../lib/NETBSDALPHA/.libs/libpvm3.so \
    -L/usr/pkgsrc-current/parallel/pvm3/work.bondage/.buildlink/lib \
    -L/usr/pkgsrc-current/parallel/pvm3/work.bondage/pvm3/lib/NETBSDALPHA

so we have lost the -Wl,--rpath -Wl,/usr/pkg/pvm3/lib/NETBSDALPHA stuff.  And
of course once installed:

1 % ldd /usr/pkg/pvm3/bin/NETBSDALPHA/hello
/usr/pkg/pvm3/bin/NETBSDALPHA/hello:
     -lpvm3.3 => not found
     -lc.12 => /usr/lib/libc.so.12

2 % env LD_LIBRARY_PATH=/usr/pkg/pvm3/lib/NETBSDALPHA ldd /usr/pkg/pvm3/bin/NETBSDALPHA/hello
/usr/pkg/pvm3/bin/NETBSDALPHA/hello:
     -lpvm3.3 => /usr/pkg/pvm3/lib/NETBSDALPHA/libpvm3.so.3
     -lc.12 => /usr/lib/libc.so.12

So am I doing something wrong or is bl3 broken?

-Dan



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