add -fPIC to CFLAGS by default, use pkg-config to get LDFLAGS and CFLAGS for openssl, output enable_openssl status
Correct issue in cipher_driver unit test facility where the wrong cipher instance was being used for AES-256 when configured for OpenSSL.
Resolve address sanitizer finding when using clang compiler.
Merge pull request #35 from krisk84/feature-openssl

add -fPIC to CFLAGS by default, use pkg-config to get LDFLAGS and CFLAGS...