Wei Wang wrote:
> Afte searching on the net, I added -lpq but the result is not positive:
> gcc -O2 -Wall -Wmissing-prototypes -Wmissing-declarations -I../../../src/interfaces/libpq -I../../../src/include testlibpq.c -o testlibpq -lpq
> testlibpq.c: In function `exit_nicely':
> testlibpq.c:14: warning: implicit declaration of function `exit'
> /usr/bin/ld: cannot find -lpq
> collect2: ld returned 1 exit status
> What am I missing here?
You need to tell gcc where to find libpq.so. You do that with the -L
option. So find libpq.so (I don't know where it is in the compile tree)
and then add -L/path/to/libpq to the command.
So you might end up with something like:
gcc -I../../../src/interfaces/libpq -I../../../src/include
-L../../../src/lib testlibpq.c -o testlibpq -lpq
Again, I don't really know where libpq.so is, so find it and substitute
the real path for the one above.
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