Sorry that I didn't mention that I was referring to the C-library of
oauth [1], which btw could be included on the list at [2]. But back to
the problem, just in case anybody happens to experience the same.
I made a beginner's mistake (well, but then again C++ has so many
quirks that I can live with that): Since liboauth is a C-library, the C
++ compiler needs to now that what follows now is C-code, once it
attempts to link the respective parts.
Hence, one has to tell the C++ compiler already at the time of
inclusion of the library definition, that what follows is C-code by
writing:
extern "C" {
#include <oauth.h>
}
instead of just #include <oauth.h>.
Here goes another few wasted hours... :(
But thanks for providing that list and of-course, OAuth,
Thomas
[1] http://liboauth.sourceforge.net/
[2] http://oauth.net/code
On May 5, 4:37 pm, thomas <[email protected]> wrote:
> Dear list,
>
> I wanted to ask if any of you have already experienced the following
> problem: Configuring and make OAuth works fine and liboauth.so and
> liboauth.la are smoothly installed e.g. in /usr/local/lib but the
> compiler just won't link to it's methods, like in the following
> example:
>
> tzang...@tzangerl-desktop:~$ g++ `pkg-config --libs oauth` test.cpp
> /tmp/ccR4RD4H.o: In function `main':
> test.cpp:(.text+0x1e9): undefined reference to `oauth_sign_url(char
> const*, char**, OAuthMethod, char const*, char const*, char const*,
> char const*)'
>
> where pkg-config returns the following:
>
> tzang...@tzangerl-desktop:~$ pkg-config --libs oauth
> -Wl,-Bsymbolic-functions -L/usr/local/lib -loauth -lm -lssl -lcurl
>
> The libraries are all there:
>
> tzang...@tzangerl-desktop:~$ ls -l /usr/local/lib/liboauth*
> -rwxr-xr-x 1 root root 73574 2009-05-05 15:57 /usr/local/lib/
> liboauth.a
> -rwxr-xr-x 1 root root 1075 2009-05-05 15:57 /usr/local/lib/
> liboauth.la
> lrwxrwxrwx 1 root root 17 2009-05-05 15:57 /usr/local/lib/
> liboauth.so -> liboauth.so.1.0.0
> lrwxrwxrwx 1 root root 17 2009-05-05 15:57 /usr/local/lib/
> liboauth.so.1 -> liboauth.so.1.0.0
> -rwxr-xr-x 1 root root 67232 2009-05-05 15:57 /usr/local/lib/
> liboauth.so.1.0.0
>
> and the oauth_sign_url symbol is in the library:
>
> nm /usr/local/lib/liboauth.so
> ...
> 00002ed0 T oauth_sign_url
> ...
>
> There aren't any libraries missing either, as ldd indicates. So maybe
> I am just stumbling over an idiotic error here, which I fail to see
> with my tunnel perspective or something is very strange. May anybody
> have a hint or a pointer for me concerning what I might be missing
> (wrong libtool version or any other compile-time-specific thing
> maybe?)?
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