I was trying this example program out of a well known postgresql book and keep getting errors whenever I try to compile. Error messages ##make client1 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 make: *** [client1] Error 1 --------------------------------------------------------- -------------------------------------------------- /* ** File: client1.c */ #include "libpq-fe.h" int main( void ) { PGconn * connection; connection = PQconnectdb( "dbname='MyTestDB'" ); ## I tried the above line with ## connection = PQconnectdb( "" ); ## as per the book PQfinish( connection ) ; return( 0 ); } ----------------------------------------------------- ## File: Makefile ## ## Rules to create libpq sample applications ## CPPFLAGS += -I /usr/include -I /usr/include/pgsql -I /usr/include/pgsql/server CFLAGS += -g LDFLAGS += -g LDLIBS += -L /usr/lib -L /usr/lib/pgsql client1: client1.o ------------------------------------------------- following are the rpms I have installed on a RHEL5 system. postgresql-plperl-8.2.4-1PGDG postgresql-contrib-8.2.4-1PGDG postgresql-python-8.1.9-1.el5 postgresql-docs-8.2.4-1PGDG postgresql-server-8.2.4-1PGDG postgresql-devel-8.2.4-1PGDG postgresql-8.2.4-1PGDG postgresql-plpython-8.2.4-1PGDG compat-postgresql-libs-4-2PGDG.rhel4 postgresql-libs-8.2.4-1PGDG postgresql-pltcl-8.2.4-1PGDG Yes I see the compat one and will install rhel5 if I find one. ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org/