Add mingw-w64-openssl to the MinGW cross-compile toolchain

[mark-e-deyoung]

Required: Add mingw-w64-openssl to the MinGW cross-compile toolchain

WinInspect (github.com/SemperSupra/WinInspect) now requires OpenSSL for
SSH key-based authentication. The sign_ssh_msg() function uses OpenSSL's
PEM_read_bio_PrivateKey + EVP_DigestSign for Ed25519 signing.

Build dependency

When building WinInspect with the MinGW cross-compiler, the OpenSSL
development headers and libraries for MinGW are required:

# Debian/Ubuntu-based WBAB container
RUN apt-get install -y mingw-w64-openssl

Or if the distro packages it differently:

RUN apt-get install -y gcc-mingw-w64-x86-64-win32 mingw-w64
RUN apt-get install -y libssl-dev:mingw-w64-x86-64  # or similar

Verification

After the dependency is installed, WinInspect's CMake should detect
OpenSSL automatically:

cmake -B build -G "MinGW Makefiles" -DCMAKE_BUILD_TYPE=Release \
  -DWININSPECT_BUILD_TESTS=ON
# Look for: -- OpenSSL found: X.Y.Z

Runtime dependency

The built .exe also needs libcrypto-*.dll and libssl-*.dll at runtime.
These should be copied alongside the .exe into the Wine prefix or
container image.

Related

• WinInspect CMakeLists.txt now sets WININSPECT_USE_OPENSSL=ON by default
• WinInspect build auto-copies OpenSSL DLLs to the output directory