Thread: trying to use libpq in Ubuntu

    Henri De Feraudy wrote:

> linux-g++ {
>   LIBS += /usr/lib/libpq.a
>    INCLUDEPATH += /usr/include/postgresql
> }

Try:

linux-g++ {
    LIBS += -lpq
    INCLUDEPATH += /usr/include/postgresql
}

Also make sure that you have the libpq-dev package installed.

Best regards,
--
Daniel
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On Tuesday 21 September 2010, Henri De Feraudy elucidated thus:
> Hello,
>  I have developed an application in C++ under Qt in Windows XP, now I
> would like to port it to Ubuntu GNU/Linux.
> Choosing the libraries in Windows was a piece of cake: the bottom of
> my Qt qmake project file was
> win32 {
>     LIBS += "C:\Progra~1\PostgreSQL\8.4\lib\libpq.lib"
>     INCLUDEPATH += "C:\Progra~1\PostgreSQL\8.4\include"
> }
> linux-g++ {
>     LIBS += /usr/lib/libpq.a
>     INCLUDEPATH += /usr/include/postgresql
> }
>
> This works fine in Windows, but in Ubuntu there are more than a
> hundred undefined symbols, like references to ldap
> Does anyone have a sample project file or suggestions?

If you are using Qt, why not use the Qt database abstraction classes?
That will save you having to compile directly against the Pg libraries.

j

--
Joshua Kugler
Part-Time System Admin/Programmer
http://www.eeinternet.com - Fairbanks, AK
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