Windows: note: ld: cannot find -lpq

[Ciantic]

I tried with this:

#[macro_use]
extern crate diesel;
fn main() {
    println!("Hello world!");
}

The compilation fails with note: ld: cannot find -lpq

I downloaded PostgreSQL (portable) and set LD_LIBRARY_PATH environment variable, but it didn't help. I wonder should I set the library path some other way?

edit Also pg_config is in the PATH and it prints out the right directory.

[mcasper]

Have you tried running cargo clean && cargo build? A lot of the time cargo just needs to rebuild the package from scratch in order to pick up new link paths

[Ciantic]

Hmm, now it gives a longer error:

note: ld: skipping incompatible C:/Copies/.../PgSQL/lib/libpq.dll when searching for -lpq
ld: skipping incompatible C:/Copies/.../PgSQL/lib/libpq.dll when searching for -lpq
ld: cannot find -lpq

[mcasper]

That usually means that you've installed an incompatible version of the library (32bit vs 64bit, or for the wrong platform).

Can you confirm that you have the correct bit version installed?

[Ciantic]

Yes I also suspected this from the error message. It seems to be incorrect version (32 bit), if I could only find portable 64bit version to try...

But I think the cargo clean && cargo build solved the first issue so perhaps you can close this.

[Ciantic]

Note for future reference:

I found the 64 bit binary zip, which is portable already: http://www.postgresql.org/download/windows/ (note the small zip archive link at the end)