Re: [INTERFACES] C & C ++Program Problem
От | Arindam Haldar |
---|---|
Тема | Re: [INTERFACES] C & C ++Program Problem |
Дата | |
Msg-id | 3CE3A3C5.1050000@hotpop.com обсуждение исходный текст |
Список | pgsql-general |
on my RedHat 7.2 i have inserted these lines in the file /etc/ld.so.conf /usr/lib/pgsql-7.2 using gcc -lpq egtry.c gives error--> /usr/bin/ld: cannot find -lpq collect2: ld reurned 1 exit status am very newto c , can u tellhow to use -lpq ?? thanx in anticipation A.H Ted Petrosky wrote: > I was having the same problems. Do you have the momjiam book > PostgreSQL? He gives examples of compiling C and C++ programs complete > with the command line to start compiling (on page 195). Take a look at it (I > think it is also online). You are missing the linking flag that tells the linker > where the libpq.a and libpq++.a files live. libpq.a and libpq++.a is where those > symbols are defined. > > Ted > > > > -----Original Message----- > From: Arindam Haldar <arindamhaldar@hotpop.com> > To: pgsql-interfaces@postgresql.org, pgsql-general@postgresql.org, > nandrews@investsystems.co.uk > Date: Thu, 16 May 2002 12:23:19 +0530 > Subject: Re: [INTERFACES] C & C ++Program Problem > > >>hi, >>thanx for the hint. am re-entering c programming from DOS world !--my >>apologies as am again a learner. 1 more Query on to this. >>POstgres-7.2 was not configured with-->--with-gnu-ld , which i just saw >>is default set to no... So can that be problem while compling C & C++ >>prorgrames ? >>thanx again in advance for ur help. >>A.H >> >>Nigel J. Andrews wrote: >> >> >>You need to read the error messages. It's not a postgres issue it's a >>linking >>issue. Try giving the -lpq flag to gcc. >> >>On Thu, 16 May 2002, Arindam Haldar wrote: >> >>hi all, >>am trying to use C & C++ libraries with postgresql 7.2. >>while compiling a sample programe(attached) there were thse errors >>encounterd !.. >> >>[arindam@my src]$ >>[arindam@my src]$ gcc egTry.c >>/tmp/ccTLiExh.o: In function `main': >>/tmp/ccTLiExh.o(.text+0x12): undefined reference to `PQconnectdb' >>/tmp/ccTLiExh.o(.text+0x2b): undefined reference to `PQstatus' >>/tmp/ccTLiExh.o(.text+0x5c): undefined reference to `PQerrorMessage' >>/tmp/ccTLiExh.o(.text+0xac): undefined reference to `PQexec' >>/tmp/ccTLiExh.o(.text+0xc5): undefined reference to `PQresultStatus' >>/tmp/ccTLiExh.o(.text+0xf3): undefined reference to `PQclear' >>/tmp/ccTLiExh.o(.text+0x104): undefined reference to `PQfinish' >>/tmp/ccTLiExh.o(.text+0x12e): undefined reference to `PQntuples' >>/tmp/ccTLiExh.o(.text+0x159): undefined reference to `PQgetvalue' >>/tmp/ccTLiExh.o(.text+0x186): undefined reference to `PQclear' >>/tmp/ccTLiExh.o(.text+0x197): undefined reference to `PQfinish' >>collect2: ld returned 1 exit status >>[arindam@my src]$ >> >>lib & include dir are in /usr/lib/pgsql-7.2 & /usr/include/pgsql-7.2. >>i have tried to compliethis programme with RH7.2(with postgres rpm & a >>configured from tar file).. >>i need help pls... i want to use C or C++ >>thanking u in advance >>A.H >> >> >>---------------------------(end of broadcast)--------------------------- >>TIP 1: subscribe and unsubscribe commands go to >> > majordomo@postgresql.org >
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