openssl: fix mingwW64 build (#455104)

From af3a3f8205968f9e652efa7adf2a359f4eb9d9cc Mon Sep 17 00:00:00 2001

From: Alexandr Nedvedicky <sashan@openssl.org>

Date: Mon, 6 Oct 2025 09:33:09 +0200

Subject: [PATCH] OPENSSL_SYS_WINDOWS is also enabled for mingw build

the test_n() in bioprinttest.c must differentiate between

MSVC runtime libc and ming runtime libc. The function

_set_printf_count_output() must be called when openssl

is linked with MSVC libc only.

Fixes #28679

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>

Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>

Reviewed-by: Neil Horman <nhorman@openssl.org>

(Merged from https://github.com/openssl/openssl/pull/28759)

---

 test/bioprinttest.c | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/bioprinttest.c b/test/bioprinttest.c

index bd99b9820ecc0..28730631bc201 100644

--- a/test/bioprinttest.c

+++ b/test/bioprinttest.c

@@ -541,7 +541,7 @@ static int test_n(int i)

         ptrdiff_t t;

     } n = { 0 };

-#if defined(OPENSSL_SYS_WINDOWS)

+#if defined(_set_printf_count_output)

     /*

      * MS CRT is special and throws an exception when %n is used even

      * in non-*_s versions of printf routines, and there is a special function

        else

          ./3.5/use-etc-ssl-certs.patch

      )

    ]

    ++ lib.optionals stdenv.hostPlatform.isMinGW [

      ./3.5/fix-mingw-linking.patch

    ];

    withDocs = true;