Re: :

Am Montag, 21. Oktober 2002 16:49 schrieb shey sewani:
> Cand find postgres Libpq libraries
> Date: Mon, 21 Oct 2002 09:49:25 -0500
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>
> 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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