| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | pgsql(dot)gen(at)tuxbeagle(dot)com |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Using C API |
| Date: | 2007-10-14 15:56:27 |
| Message-ID: | 27605.1192377387@sss.pgh.pa.us |
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| Lists: | pgsql-general |
pgsql(dot)gen(at)tuxbeagle(dot)com writes:
> I was trying this example program out of a well known postgresql book and keep getting errors whenever I try to compile.
> cc -g -I /usr/include -I /usr/include/pgsql -I /usr/include/pgsql/server -c -o client1.o client1.c
> cc -g client1.o -L /usr/lib -L /usr/lib/pgsql -o client1
> client1.o: In function `main':
> /root/PROGRAMMING/C_API/client1.c:10: undefined reference to `PQconnectdb'
> /root/PROGRAMMING/C_API/client1.c:11: undefined reference to `PQfinish'
> collect2: ld returned 1 exit status
You're missing "-lpq" in the link step. I think most or all of those -I
and -L switches are useless, also.
regards, tom lane
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