Re: libpq++ compiling errors...

On Wed, 2002-01-30 at 00:53, isaac flemmin wrote:

> g++  -I/usr/local/pgsql/include -o testlibpq0 testlibpq0.cc
> -L/usr/local/pgsql/lib -lpq++
>
> In file included from ../libpq++.h:27,
>
>                  from testlibpq0.cc:18:
>
> /usr/local/pgsql/include/libpq++/pgconnection.h:85: syntax error before
> `('
>
> In file included from ../libpq++.h:29,
>
>                  from testlibpq0.cc:18:
>
> /usr/local/pgsql/include/libpq++/pglobject.h:36: syntax error before `;'

I have very little experience of C++, but all these errors relate to the
string class; it appears not to be provided by your class library.
pgconnection.h appears to contemplate the possibility, since the
inclusion of string.h is enclosed in an #ifdef, but there is no
alternative provided.

I think that libpq++ is very poorly tested.  If you look back in the
archives a week or two, you will find mention of a new C++ interface
that would replace libpq++.



> gcc  -Wl,-rpath,/usr/local/pgsql/lib  testlibpq.o   -o testlibpq
>
> testlibpq.o: In function `main':
>
> testlibpq.o(.text+0x1c): undefined reference to `PQsetdbLogin'


This is a link error; the command does not link the libpq library into
the executable.  You need to add "-lpq" to the link options.

--
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
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