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
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you must add -lpq too your LDFLAGS
in order to link the lib you only have the linker paths set in LDFLAGS
it should read like this then:
cc -g client1.o -L /usr/lib -L /usr/lib/pgsql -o client1 -lpq
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Viele Grüße,
Lars Heidieker
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Mystische Erklärungen.Die mystischen Erklärungen gelten für tief;
die Wahrheit ist, dass sie noch nicht einmal oberflächlich sind.
-- Friedrich Nietzsche
