Re: Missing bcrytp.dll when running Watcom compiled Libcurl program on XP.

On 7/3/2019 7:36 AM, Gisle Vanem via curl-library wrote:
> Dan Gribble wrote:
>
>> I have copied libcrypto-1_1.dll and libssl-1_1.dll (from openssl
>> 1.1.1c) to my application directory in order to run the compiled
>> application,
>> but other than that I have not done anything else.
>
> You have to rebuild OpenSSL with a '_WIN32_WINNT' value
> suitable for Win-XP ('-D_WIN32_WINNT=0x0501' should work
> I think). Or maybe lower the value in
> 'Configurations\50-win-onecore.conf'
>
> Look at OpenSSL's crypto/rand/rand_win.c where bcrypt.dll
> functions are used:
>
> ?? /* On Windows Vista or higher use BCrypt instead of the legacy
> CryptoAPI */
> ?? # if defined(_MSC_VER) && defined(_WIN32_WINNT) && _WIN32_WINNT >=
> 0x0600
> ?? #?? define USE_BCRYPTGENRANDOM
> ?? # endif

The OpenSSL that is provided on the Windows download page should work
for Windows XP. I suggest use that instead of your OpenSSL if you don't
want to build it yourself. https://curl.haxx.se/windows/

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Received on 2019-07-07