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http://stackoverflow.com/questions/34410711/how-to-build-openssl-in-vs2015-x86cpuid-asm-is-an-empty-file https://github.com/disig/SoftHSM2-for-Windows/blob/master/BUILDING.md

Building OpenSSL 1.0.2d as a static library on Windows Note: Following text is extracted from my building instructions for SoftHSM2.

Required software Visual Studio (2015 Community) GNU Privacy Guard for Windows (2.2.5) 7-zip (9.20) Strawberry Perl (5.22.0.1) The Netwide Assembler (2.11.08) Preparations Create working directories:

mkdir C:\build\bin
mkdir C:\build\src
Download OpenSSL 1.0.2d with its signature into C:\build\src\ directory and verify signature of the downloaded archive:

cd C:\build\src
gpg --keyserver pgp.mit.edu --recv-keys 0E604491 gpg --verify openssl-1.0.2d.tar.gz.asc openssl-1.0.2d.tar.gz Building 32-bit version Extract archive openssl-1.0.2d.tar.gz into C:\build\src\openssl-1.0.2d-x86 directory:

cd C:\build\src
"C:\Program Files\7-Zip\7z" x openssl-1.0.2d.tar.gz "C:\Program Files\7-Zip\7z" x openssl-1.0.2d.tar rename openssl-1.0.2d openssl-1.0.2d-x86 del openssl-1.0.2d.tar In a new command line window build OpenSSL and install it into C:\build\bin\openssl-1.0.2d-x86 directory:

cd C:\build\src\openssl-1.0.2d-x86 set PATH=%PATH%;C:\nasm "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" perl Configure VC-WIN32 --prefix=C:\build\bin\openssl-1.0.2d-x86 enable-static-engine ms\do_nasm nmake /f ms\nt.mak nmake /f ms\nt.mak test nmake /f ms\nt.mak install Resulting build is located in C:\build\bin\openssl-1.0.2d-x86 directory.

Building 64-bit version Extract archive openssl-1.0.2d.tar.gz into C:\build\src\openssl-1.0.2d-x64 directory:

cd C:\build\src
"C:\Program Files\7-Zip\7z" x openssl-1.0.2d.tar.gz "C:\Program Files\7-Zip\7z" x openssl-1.0.2d.tar rename openssl-1.0.2d openssl-1.0.2d-x64 del openssl-1.0.2d.tar In a new command line window build OpenSSL and install it into C:\build\bin\openssl-1.0.2d-x64 directory:

cd C:\build\src\openssl-1.0.2d-x64 set PATH=%PATH%;C:\nasm "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" amd64 perl Configure VC-WIN64A --prefix=C:\build\bin\openssl-1.0.2d-x64 enable-static-engine ms\do_win64a nmake /f ms\nt.mak nmake /f ms\nt.mak test nmake /f ms\nt.mak install Resulting build is located in C:\build\bin\openssl-1.0.2d-x64 directory.