Make gpg-error replacement defines more robust.
* configure.ac (AH_BOTTOM): Move GPG_ERR_ replacement defines to ... * src/gcrypt-int.h: new file. * src/visibility.h, src/cipher.h: Replace gcrypt.h by gcrypt-int.h. * tests/: Ditto for all test files.
Defining newer gpg-error codes in config.h was not a good idea,
because config.h is usually included before gpg-error.h and thus
gpg-error.h would be double defines to lead to faulty code there like
typedef enum
{
[...]
191 = 191,
[...]
};