Обсуждение: aix build question re: duplicate symbol warning

Hi all,

I'm trying to build PG 8.1 beta on an AIX server.

The 'make' finishes without errors, but I'm getting lots of duplicate
symbol warnings like the following one.  What am I to make of these?

gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Winline
-fno-strict-aliasing   -Wl,-bnoentry -Wl,-H512 -Wl,-bM:SRE -o libpq.\
so libpq.a -L../../../src/port    -L../../../src/port -lnsl
-Wl,-bI:../../../src/backend/postgres.imp -Wl,-bE:libpq.exp
ld: 0711-224 WARNING: Duplicate symbol:
.pqStrerror

ld: 0711-224 WARNING: Duplicate symbol:
.pqGetpwuid

...

I used a vanilla configure except for --without-readline.

Tools that seem to be in use:

AIX 5.1
GNU Make 3.80
gcc 3.2.2
ld - AIX version

This is an 8-CPU machine that recently became disused in our research
department and looks like a nice potential PG host.

Thanks,
Kevin Murphy

Kevin Murphy <murphy@genome.chop.edu> writes:
> I'm trying to build PG 8.1 beta on an AIX server.

> The 'make' finishes without errors, but I'm getting lots of duplicate
> symbol warnings like the following one.  What am I to make of these?

> gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Winline
> -fno-strict-aliasing   -Wl,-bnoentry -Wl,-H512 -Wl,-bM:SRE -o libpq.\
> so libpq.a -L../../../src/port    -L../../../src/port -lnsl
> -Wl,-bI:../../../src/backend/postgres.imp -Wl,-bE:libpq.exp
> ld: 0711-224 WARNING: Duplicate symbol:
> .pqStrerror

Hmm.  pqStrerror is defined in libpgport (which is linked into the
backend) as well as libpq.  ISTM that libpq should not be linked with
-Wl,-bI:../../../src/backend/postgres.imp, since it's not intended to
be loaded into the backend.  Without having looked at the code, I'm
wondering if the AIX makefiles stick that option into LDFLAGS_SL rather
than someplace more restricted.

            regards, tom lane