How to compile OpenSSL x64

Prerequisites:

X64 operating system;

1. ActivePerl-5.10.1.1007-MSWin32-x64-291969.msi;
2. Vs2008, supports x64 compilation. Add the corresponding module during installation;
3. OpenSSLCodePackage.

Compilation process:

1. Add the cross tool command prompt "x64 of Visual Studio 2008" to "external tools" in vs2008 ";
   Note: "Visual Studio 2008 x64 cross tool command prompt" is different from "Visual Studio 2008 command prompt;
   For how to add the "x64 cross tool command prompt", refer to the notes;
2. Decompress the OpenSSL code package;
3. Open vs2008, run the "x64 cross tool command prompt", and enter the OpenSSL code package directory;
4. Step 1, Perl configure VC-WIN64A
5. Step 2, MS/do_win64a
6. Step 3: Edit ms/NT. Mak (or MS/NTDLL. Mak) and modify the input directory:
   # The output directory for everything intersting
   Out_d = out64
   # The output directory for all the temporary muck
   Tmp_d = tmp64
   # The output directory for the header files
   Inc_d = inc64
   Inco_d = inc64/OpenSSL
7. Step 4, after nmake-f ms/NT. Mak is successful, you can get libeay64.lib
   

Note:
How to add a command prompt for the Cross tool of Visual Studio 2008 x64:

1. Run "vcvarsx86_amd64.bat" in "$ (vc_install_dir) 0/VC/bin/x86_amd64" to register the environment variable;
2. Open vs2008, "Tools"-"external tools"-"add", as shown in:
   
   Click OK.
3. Close vs2008 and restart. Run "vs 2008x64 command prompt" under "Tools ".