[openssl/openssl] 09d12e: Allow MinGW-w64 builds to use BCryptGenRandom

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: 09d12ef1d740f0330ac2a04f281fb2838df0db7b
      https://github.com/openssl/openssl/commit/09d12ef1d740f0330ac2a04f281fb2838df0db7b
  Author: Mounir IDRASSI <[email protected]>
  Date:   2026-07-10 (Fri, 10 Jul 2026)

  Changed paths:
    M Configurations/10-main.conf
    M providers/implementations/rands/seeding/rand_win.c

  Log Message:
  -----------
  Allow MinGW-w64 builds to use BCryptGenRandom

MinGW-w64 has provided bcrypt headers and import libraries since
version 2.0, but OpenSSL only enabled the BCryptGenRandom seeding
path for supported MSVC builds. Enable the existing direct
BCryptGenRandom flow for MinGW-w64 when targeting Windows Vista or
newer, and link MinGW builds with bcrypt alongside the other Windows
import libraries.

Use __MINGW64_VERSION_MAJOR to detect MinGW-w64 because it is defined
by both the 32-bit and 64-bit MinGW-w64 toolchains.

Builds targeting older Windows versions keep the CryptoAPI fallback
because USE_BCRYPTGENRANDOM remains disabled when _WIN32_WINNT is
below 0x0600.

Fixes #13878

Reviewed-by: Milan Broz <[email protected]>
Reviewed-by: Nikola Pajkovsky <[email protected]>
Reviewed-by: Neil Horman <[email protected]>
MergeDate: Fri Jul 10 12:05:09 2026
(Merged from https://github.com/openssl/openssl/pull/13882)



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