bcrypt: Ensure we have gnutls_hash() available.

[Huw Davies]

On 18 Jan 2016, at 11:56, Sebastian Lackner wrote:

> On 18.01.2016 12:41, Huw Davies wrote:
>> Fixes compile failures with older versions of gnutls.
>> 
>> Signed-off-by: Huw Davies <huw at codeweavers.com>
>> ---
>> configure.ac              |  1 +
>> dlls/bcrypt/bcrypt_main.c | 10 +++++-----
>> 2 files changed, 6 insertions(+), 5 deletions(-)
>> 
>> diff --git a/configure.ac b/configure.ac
>> index 0766edf..0eedf43 100644
>> --- a/configure.ac
>> +++ b/configure.ac
>> @@ -1270,6 +1270,7 @@ then
>> #include <gnutls/crypto.h>]], [[static typeof(gnutls_mac_get_key_size) *func; if (func) return 0;]])],
>>                 [WINE_CHECK_SONAME(gnutls,gnutls_global_init,,[GNUTLS_CFLAGS=""],[$GNUTLS_LIBS],[[libgnutls\\(-deb0\\)\\{0,1\\}]])])],
>>             [GNUTLS_CFLAGS=""])])
>> +    WINE_CHECK_LIB_FUNCS(gnutls_hash,[$GNUTLS_LIBS])
>> fi
>> WINE_WARNING_WITH(gnutls,[test "x$ac_cv_lib_soname_gnutls" = "x"],
>>                  [libgnutls ${notice_platform}development files not found, no schannel support.])
> 
> Wouldn't it be useful to warn a bit more explicit at compile-time? Otherwise packagers will
> have a hard time to find out if its supported by their build.

I figured that since this only affects fairly old versions of gnutls, that the extra
bloat wouldn't be worth it.

Huw.