Problem using library libssl

[Giuseppe Sacco <giuseppe@eppesuigoccas.homedns.org>]

Hi all,
I have a problem about gcc not finding a library and its symbols. I link
my very simple test program against libssl using -lssl and the linker
emit a lot of errors about symbols not found. These are symbols from
libcrypto.so, but they should be automatically found since libssl.so
require libcrypto.so (it is listed by "ldd /usr/lib/libssl.so").

Please note my program does only use a symbol from libssl and nothing
from libcrypto. This is the source:

char SSL_library_init();
int main ()
{
 return SSL_library_init();
}

I know that on a fresh debian installation this works without any
problem.

The error I get are:

$ gcc -o conftest  conftest.c -lssl 
/usr/lib/gcc/i486-linux-gnu/4.6.1/../../../../lib/libssl.so: undefined reference to `BIO_pop@OPENSSL_1.0.0'
/usr/lib/gcc/i486-linux-gnu/4.6.1/../../../../lib/libssl.so: undefined reference to `EVP_CipherInit_ex@OPENSSL_1.0.0'
/usr/lib/gcc/i486-linux-gnu/4.6.1/../../../../lib/libssl.so: undefined reference to `BUF_memdup@OPENSSL_1.0.0'
/usr/lib/gcc/i486-linux-gnu/4.6.1/../../../../lib/libssl.so: undefined reference to `EVP_MD_CTX_copy@OPENSSL_1.0.0'
/usr/lib/gcc/i486-linux-gnu/4.6.1/../../../../lib/libssl.so: undefined reference to `sk_free@OPENSSL_1.0.0'
[... many other similar ...]

I get the same error with gcc-4.4, gcc-4.5, and gcc-4.6. May this be due
to same gcc configuration file? Or is it more probably a linker problem
(maybe some files in /etc/ld.so.conf.d/)?

Any idea about possible solutions?

Thanks,
Giuseppe