Re: Problem in using C API - libpq

Including the header is not enough.... you must also link your binary
against the library.

On Feb 11, 2008, at 9:52 PM, Shwe Yee Than wrote:

> Hello,
>
> I´ve got a problem when trying to access Postgresql through C
> language. I've included "libpq-fe.h" as a header file in the C
> program.
> When I compile it, I got the following errors:
> [srb(at)fsktm src]$ gmake
> alpha1.o(.text+0x297c6):/home/srb/SRB3_4_2/mySRB/src/alpha1.c:12726:
> undefined reference to `PQstatus'
> alpha1.o(.text+0x297f5):/home/srb/SRB3_4_2/mySRB/src/alpha1.c:12729:
> undefined reference to `PQerrorMessage'
> alpha1.o(.text+0x2986f):/home/srb/SRB3_4_2/mySRB/src/alpha1.c:12741:
> undefined reference to `PQexec'
> alpha1.o(.text+0x29886):/home/srb/SRB3_4_2/mySRB/src/alpha1.c:12743:
> undefined reference to `PQresultStatus'
> alpha1.o(.text+0x298b2):/home/srb/SRB3_4_2/mySRB/src/alpha1.c:12746:
> undefined reference to `PQclear'
> alpha1.o(.text+0x298c3):/home/srb/SRB3_4_2/mySRB/src/alpha1.c:12747:
> undefined reference to `PQfinish'
> alpha1.o(.text+0x298e8):/home/srb/SRB3_4_2/mySRB/src/alpha1.c:12751:
> undefined reference to `PQntuples'
> alpha1.o(.text+0x2990c):/home/srb/SRB3_4_2/mySRB/src/alpha1.c:12752:
> undefined reference to `PQgetvalue'
> alpha1.o(.text+0x29935):/home/srb/SRB3_4_2/mySRB/src/alpha1.c:12754:
> undefined reference to `PQclear'
> alpha1.o(.text+0x29946):/home/srb/SRB3_4_2/mySRB/src/alpha1.c:12756:
> undefined reference to `PQfinish'
> collect2: ld returned 1 exit status
> gmake: *** [etd.cgi] Error 1
>
> Ayone can help me?
> Thanks in advance
>
> Regards,
> Shwe
>
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