OpenSSL 1.1.1w - built with Visual Studio 2022 CE, MinGW-w64 (cross)

Visual Studio (with VS cmd, unpack the archive with Windows 10 tar)

32bit

(optionally apply openssl-1.1-crypto-init-win9x.diff)

You may need to disable /WX in Configurations/10-main.conf before running Configure, just remove the line:

CFLAGS           => add("/WX"),

then

perl Configure VC-WIN32 no-shared no-pinshared no-dynamic-engine no-capieng no-async --prefix=C:\Work\Clamav\openssl\win32\build

Add -D_WIN32_WINNT=0x0501 for backward compatibility.

:: Optional for multicore build
set CL=/MP

nmake install_dev

64bit

perl Configure VC-WIN64A no-shared no-pinshared no-dynamic-engine no-capieng no-async --prefix=C:\Work\Clamav\openssl\x64\build

:: Optional for multicore build
set CL=/MP

nmake install_dev

MinGW (Currently cross-compiled on Linux)

(optionally apply openssl-1.1-crypto-init-win9x.diff and openssl-1.1-mingw-wspiapi.diff)

x86

./Configure mingw no-shared no-pinshared no-dynamic-engine no-capieng no-async --cross-compile-prefix=i686-w64-mingw32- --prefix=`pwd`/../dist
make -jX
make install_dev

x86_x64

./Configure mingw64 no-shared no-pinshared no-dynamic-engine no-capieng no-async --cross-compile-prefix=x86_64-w64-mingw32- --prefix=`pwd`/../dist64
make -jX
make install_dev