Re: : Errors when compiling with Postgres 7.2.3 Libraries on RedHat 8

Hi,

I just checked my 7.2.2-installation. It looks like libpq++ is not compiled in
by default. Maybe your rpms don't have them. Check "rpm -ql
postgresql-lib|grep libpq++". It should print out the location of your
libpq++.so.

Tommi

Am Montag, 21. Oktober 2002 17:21 schrieb shey sewani:

Hello,

I tried compiling with g++ and i'm still recieving linking errors. I've
also pasted the contents of my /etc/ld.so.conf file in this e-mail.

/usr/lib
/usr/kerberos/lib
/usr/X11R6/lib
/usr/lib/qt-3.0.5/lib
/usr/lib/sane
/usr/qt/lib

Sheheryar Sewani
Houston, TX

----Original Message Follows----
From: Tommi Maekitalo <t.maekitalo@epgmbh.de>
To: pgsql-general@postgresql.org
Subject: Re: [GENERAL] :
Date: Mon, 21 Oct 2002 16:55:31 +0200
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Am Montag, 21. Oktober 2002 16:49 schrieb shey sewani:

Cand find postgres Libpq libraries
Date: Mon, 21 Oct 2002 09:49:25 -0500
Mime-Version: 1.0
Content-Type: text/plain; format=flowed

Hello,

I recently Intalled RedHat 8.0 on my server. I also upgraded from

Postgres

7.1 to Postgres 7.2.3 using RPMS. I installed all the RPMS for 7.2.3 on
this machine. Unfortunatley I've had some problems compiling programs

that

use libpq++ on this machine. When I compile such programs I get the
following error messages.

"Querydtntrack.o(.text+0x2d): undefined reference to
`PgConnection::ConnectionBad() const'
Querydtntrack.o(.text+0x4b): undefined reference to
`PgConnection::ErrorMessage() const'
Querydtntrack.o: In function `PgDatabase::PgDatabase[in-charge](char
const*)':
Querydtntrack.o(.gnu.linkonce.t._ZN10PgDatabaseC1EPKc+0x10): undefined
reference to `PgConnection::PgConnection[not-in-charge](char
const*)'Querydtntrack.o: In function `PgDatabase::~PgDatabase
[in-charge]()':
Querydtntrack.o(.gnu.linkonce.t._ZN10PgDatabaseD1Ev+0x16): undefined
reference to `PgConnection::~PgConnection [not-in-charge]()'
Querydtntrack.o: In function `PgDatabase::~PgDatabase [in-charge
deleting]()':
Querydtntrack.o(.gnu.linkonce.t._ZN10PgDatabaseD0Ev+0x16): undefined
reference to `PgConnection::~PgConnection [not-in-charge]()'
Querydtntrack.o(.gnu.linkonce.d._ZTI10PgDatabase+0x8): undefined

reference

to `typeinfo for PgConnection'
collect2: ld returned 1 exit status
make: *** [Querydtntrack] Error 1"

I'm using the same make file as I did on my Redhat 7.1 machine with
postgres 7.1

"all: Querydtntrack

Querydtntrack: Querydtntrack.o
gcc -o Querydtntrack Querydtntrack.o -lstdc++ -lpq++ -lpq
-march=i686;
clean:
rm -f *.o Querydtntrack core"

Any suggestions on what the problem may be.

Thanks,
Sheheryar Sewani
Houston, TX

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Hi,

you should use g++ when compiling/linking c++.

Tommi

--
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http://www.epgmbh.de

Hello,

my RPM is currently not working right now, it just hangs, but if i ru the
locate command for the library file (locate libpq++) its under /usr/lib.

I installed the library file and the rest of the RPM packages for Postgres
7.2.3
few days ago.

Sheheryar Sewani
Houston, TX

----Original Message Follows----
From: Tommi Maekitalo <t.maekitalo@epgmbh.de>
To: "shey sewani" <pakix2000@hotmail.com>,pgsql-general@postgresql.org
Subject: Re: [GENERAL] : Errors when compiling with Postgres 7.2.3 Libraries
on RedHat 8
Date: Tue, 22 Oct 2002 08:50:58 +0200
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Hi,

I just checked my 7.2.2-installation. It looks like libpq++ is not compiled
in
by default. Maybe your rpms don't have them. Check "rpm -ql
postgresql-lib|grep libpq++". It should print out the location of your
libpq++.so.

Tommi

Am Montag, 21. Oktober 2002 17:21 schrieb shey sewani:

Hello,

I tried compiling with g++ and i'm still recieving linking errors. I've
also pasted the contents of my /etc/ld.so.conf file in this e-mail.

/usr/lib
/usr/kerberos/lib
/usr/X11R6/lib
/usr/lib/qt-3.0.5/lib
/usr/lib/sane
/usr/qt/lib

Sheheryar Sewani
Houston, TX

----Original Message Follows----
From: Tommi Maekitalo <t.maekitalo@epgmbh.de>
To: pgsql-general@postgresql.org
Subject: Re: [GENERAL] :
Date: Mon, 21 Oct 2002 16:55:31 +0200
IME-Version: 1.0
Received: from mc4-f18.law16.hotmail.com ([65.54.237.153]) by
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Oct

2002 07:57:02 -0700
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Mon,

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Am Montag, 21. Oktober 2002 16:49 schrieb shey sewani:

Cand find postgres Libpq libraries
Date: Mon, 21 Oct 2002 09:49:25 -0500
Mime-Version: 1.0
Content-Type: text/plain; format=flowed

Hello,

I recently Intalled RedHat 8.0 on my server. I also upgraded from

Postgres

7.1 to Postgres 7.2.3 using RPMS. I installed all the RPMS for 7.2.3

on

this machine. Unfortunatley I've had some problems compiling programs

that

use libpq++ on this machine. When I compile such programs I get the
following error messages.

"Querydtntrack.o(.text+0x2d): undefined reference to
`PgConnection::ConnectionBad() const'
Querydtntrack.o(.text+0x4b): undefined reference to
`PgConnection::ErrorMessage() const'
Querydtntrack.o: In function `PgDatabase::PgDatabase[in-charge](char
const*)':
Querydtntrack.o(.gnu.linkonce.t._ZN10PgDatabaseC1EPKc+0x10): undefined
reference to `PgConnection::PgConnection[not-in-charge](char
const*)'Querydtntrack.o: In function `PgDatabase::~PgDatabase
[in-charge]()':
Querydtntrack.o(.gnu.linkonce.t._ZN10PgDatabaseD1Ev+0x16): undefined
reference to `PgConnection::~PgConnection [not-in-charge]()'
Querydtntrack.o: In function `PgDatabase::~PgDatabase [in-charge
deleting]()':
Querydtntrack.o(.gnu.linkonce.t._ZN10PgDatabaseD0Ev+0x16): undefined
reference to `PgConnection::~PgConnection [not-in-charge]()'
Querydtntrack.o(.gnu.linkonce.d._ZTI10PgDatabase+0x8): undefined

reference

to `typeinfo for PgConnection'
collect2: ld returned 1 exit status
make: *** [Querydtntrack] Error 1"

I'm using the same make file as I did on my Redhat 7.1 machine with
postgres 7.1

"all: Querydtntrack

Querydtntrack: Querydtntrack.o
gcc -o Querydtntrack Querydtntrack.o -lstdc++ -lpq++ -lpq
-march=i686;
clean:
rm -f *.o Querydtntrack core"

Any suggestions on what the problem may be.

Thanks,
Sheheryar Sewani
Houston, TX

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Hi,

you should use g++ when compiling/linking c++.

Tommi

--
Dr. Eckhardt + Partner GmbH
http://www.epgmbh.de

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Hi,

It should work then. Maybe the library is compiled with another compiler. I
remember, that RedHat use some strange gcc-versions sometimes.

Try this:

---ttt.cpp:
#include <libpq++.h>

int main()
{
PgDatabase conn("dbname=ttt");
}

---Makefile:

INCLUDE=/usr/local/pgsql/include
LIB=/usr/local/pgsql/lib
CXXFLAGS=-I${INCLUDE}
LFLAGS=-L${LIB}

all: ttt

ttt: ttt.o
g++ -o ttt ${LFLAGS} ttt.o -lpq++ -lpq

clean:
rm -f *.o ttt.o ttt

You should maybe adjust your directories. Then we have the same startingpoint.

If your rpm-database is broken, you could ask the rpm-file, which you
installed with rpm -qlp postgresql-lib.rpm|grep libpg++.

Tommi

Hi,

I had 7.2.2, but just upgraded to 7.2.3. It works well there also. There must
be something broken with your rpms.

Tommi

Am Donnerstag, 24. Oktober 2002 02:18 schrieb shey sewani:

Hello,

I uninstalled the RPM package for postgresql-libs-7.2.3 and re-installed
the postgresql library package for postgres 7.2.2

The program compiles fine now and runs like expected.

Sheheryar Sewani
Houston, TX

----Original Message Follows----
From: Tommi Maekitalo <t.maekitalo@epgmbh.de>
To: "shey sewani" <pakix2000@hotmail.com>, pgsql-general@postgresql.org
Subject: Re: [GENERAL] : Errors when compiling with Postgres 7.2.3
Libraries on RedHat 8
Date: Wed, 23 Oct 2002 10:20:24 +0200
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Hi,

It should work then. Maybe the library is compiled with another compiler. I
remember, that RedHat use some strange gcc-versions sometimes.

Try this:

---ttt.cpp:
#include <libpq++.h>

int main()
{
PgDatabase conn("dbname=ttt");
}

---Makefile:

INCLUDE=/usr/local/pgsql/include
LIB=/usr/local/pgsql/lib
CXXFLAGS=-I${INCLUDE}
LFLAGS=-L${LIB}

all: ttt

ttt: ttt.o
g++ -o ttt ${LFLAGS} ttt.o -lpq++ -lpq

clean:
rm -f *.o ttt.o ttt

You should maybe adjust your directories. Then we have the same
startingpoint.

If your rpm-database is broken, you could ask the rpm-file, which you
installed with rpm -qlp postgresql-lib.rpm|grep libpg++.

Tommi

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