compilation of PostgreSQL 7.0.2 fails on Sun Solaris 2.5.1 using gcc 2.95.2 in interfaces/libpq++ if GNU ld is first in the $PATH

Your name : Sergei Laskavy
Your email address : <ls(at)gambit(dot)msk(dot)su>

System Configuration
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Architecture (example: Intel Pentium) : Sun SPARC

Operating System (example: Linux 2.0.26 ELF) : Sun Solaris 2.5.1

PostgreSQL version (example: PostgreSQL-7.0): PostgreSQL-7.0.2

Compiler used (example: gcc 2.8.0) : gcc 2.95.2 19991024 (release)

Please enter a FULL description of your problem:
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The generated Makefile for `interfaces/libpq++' starts the

ld -G -o libpq++.so.3.1 pgconnection.o pgdatabase.o pgtransdb.o
pgcursordb.o pglobject.o -L../../interfaces/libpq -lpq -ldl
-lsocket -lresolv -lnsl -lm -lc

command which depends on the ld version which depends on the user $PATH.

If the GNU ld is first, ld stops with error:

pgconnection.o: could not read symbols: Bad value

If the `Software Generation Utilities - Solaris/ELF (3.0)' ld from
/usr/ccs/bin is first, everything is OK.

Please describe a way to repeat the problem. Please try to provide a
concise reproducible example, if at all possible:
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tar xfz postgresql-7.0.2.tar.gz
cd postgresql-7.0.2/src
./configure --prefix=/usr/local/postgresql-7.0.2 --enable-locale --with-includes=/usr/local/include --with-libraries=/usr/local/lib --with-perl --enable-recode
PATH=/usr/local/bin:/bin:/usr/ucb:/usr/sbin:/sbin:/usr/ccs/bin gmake

The tail of make log is:

g++ -pipe -g -O2 -I../../backend -I../../include -I../../interfaces/libpq -fPIC -c pgconnection.cc -o pgconnection.o
g++ -pipe -g -O2 -I../../backend -I../../include -I../../interfaces/libpq -fPIC -c pgdatabase.cc -o pgdatabase.o
g++ -pipe -g -O2 -I../../backend -I../../include -I../../interfaces/libpq -fPIC -c pgtransdb.cc -o pgtransdb.o
g++ -pipe -g -O2 -I../../backend -I../../include -I../../interfaces/libpq -fPIC -c pgcursordb.cc -o pgcursordb.o
g++ -pipe -g -O2 -I../../backend -I../../include -I../../interfaces/libpq -fPIC -c pglobject.cc -o pglobject.o
ar crs libpq++.a pgconnection.o pgdatabase.o pgtransdb.o pgcursordb.o pglobject.o
ranlib libpq++.a
ld -G -o libpq++.so.3.1 pgconnection.o pgdatabase.o pgtransdb.o pgcursordb.o pglobject.o -L../../interfaces/libpq -lpq -ldl -lsocket -lresolv -lnsl -lm -lc
pgconnection.o: could not read symbols: Bad value
gmake: *** [libpq++.so.3.1] Error 1

If you know how this problem might be fixed, list the solution below:
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I was able to link a shared library using this (maybe more portable than
`ld') command:

gcc -shared -o libpq++.so.3.1 pgconnection.o pgdatabase.o
pgtransdb.o pgcursordb.o pglobject.o