+++ /dev/null
-
- NOTES FOR WINDOWS PLATFORMS
- ===========================
-
- There are various options to build and run OpenSSL on the Windows platforms.
-
- "Native" OpenSSL uses the Windows APIs directly at run time.
- To build a native OpenSSL you can either use:
-
- Microsoft Visual C++ (MSVC) C compiler on the command line
- or
- MinGW cross compiler
- run on the GNU-like development environment MSYS2
- or run on Linux or Cygwin
-
- "Hosted" OpenSSL relies on an external POSIX compatibility layer
- for building (using GNU/Unix shell, compiler, and tools) and at run time.
- For this option you can use Cygwin.
-
-
- Visual C++ native builds, a.k.a. VC-*
- =====================================
-
- Requirement details
- -------------------
-
- In addition to the requirements and instructions listed in INSTALL.md,
- these are required as well:
-
- - Perl.
- We recommend Strawberry Perl, available from http://strawberryperl.com/
- Please read NOTES.PERL for more information, including the use of CPAN.
- An alternative is ActiveState Perl, https://www.activestate.com/ActivePerl
- for which you may need to explicitly build the Perl module Win32/Console.pm
- via https://platform.activestate.com/ActiveState and then download it.
-
- - Microsoft Visual C compiler.
- Since these are proprietary and ever-changing we cannot test them all.
- Older versions may not work. Use a recent version wherever possible.
-
- - Netwide Assembler (NASM), available from https://www.nasm.us
- Note that NASM is the only supported assembler.
-
- Quick start
- -----------
-
- 1. Install Perl
-
- 2. Install NASM
-
- 3. Make sure both Perl and NASM are on your %PATH%
-
- 4. Use Visual Studio Developer Command Prompt with administrative privileges,
- choosing one of its variants depending on the intended architecture.
- Or run "cmd" and execute "vcvarsall.bat" with one of the options x86,
- x86_amd64, x86_arm, x86_arm64, amd64, amd64_x86, amd64_arm, or amd64_arm64.
- This sets up the environment variables needed for nmake.exe, cl.exe, etc.
- See also https://docs.microsoft.com/cpp/build/building-on-the-command-line
-
- 5. From the root of the OpenSSL source directory enter
- perl Configure VC-WIN32 if you want 32-bit OpenSSL or
- perl Configure VC-WIN64A if you want 64-bit OpenSSL or
- perl Configure to let Configure figure out the platform
-
- 6. nmake
-
- 7. nmake test
-
- 8. nmake install
-
- For the full installation instructions, or if anything goes wrong at any stage,
- check the INSTALL.md file.
-
- Installation directories
- ------------------------
-
- The default installation directories are derived from environment
- variables.
-
- For VC-WIN32, the following defaults are use:
-
- PREFIX: %ProgramFiles(86)%\OpenSSL
- OPENSSLDIR: %CommonProgramFiles(86)%\SSL
-
- For VC-WIN64, the following defaults are use:
-
- PREFIX: %ProgramW6432%\OpenSSL
- OPENSSLDIR: %CommonProgramW6432%\SSL
-
- Should those environment variables not exist (on a pure Win32
- installation for examples), these fallbacks are used:
-
- PREFIX: %ProgramFiles%\OpenSSL
- OPENSSLDIR: %CommonProgramFiles%\SSL
-
- ALSO NOTE that those directories are usually write protected, even if
- your account is in the Administrators group. To work around that,
- start the command prompt by right-clicking on it and choosing "Run as
- Administrator" before running 'nmake install'. The other solution
- is, of course, to choose a different set of directories by using
- --prefix and --openssldir when configuring.
-
- Special notes for Universal Windows Platform builds, a.k.a. VC-*-UWP
- --------------------------------------------------------------------
-
- - UWP targets only support building the static and dynamic libraries.
-
- - You should define the platform type to "uwp" and the target arch via
- "vcvarsall.bat" before you compile. For example, if you want to build
- "arm64" builds, you should run "vcvarsall.bat x86_arm64 uwp".
-
-
- Native OpenSSL built using MinGW
- ================================
-
- MinGW offers an alternative way to build native OpenSSL, by cross compilation.
-
- * Usually the build is done on Windows in a GNU-like environment called MSYS2.
-
- MSYS2 provides GNU tools, a Unix-like command prompt,
- and a UNIX compatibility layer for applications.
- However in this context it is only used for building OpenSSL.
- The resulting OpenSSL does not rely on MSYS2 to run and is fully native.
-
- Requirement details
-
- - MSYS2 shell, from https://www.msys2.org/
-
- - Perl, at least version 5.10.0, which usually comes pre-installed with MSYS2
-
- - make, installed using "pacman -S make" into the MSYS2 environment
-
- - MinGW[64] compiler: mingw-w64-i686-gcc and/or mingw-w64-x86_64-gcc.
- These compilers must be on your MSYS2 $PATH.
- A common error is to not have these on your $PATH.
- The MSYS2 version of gcc will not work correctly here.
-
- In the MSYS2 shell do the configuration depending on the target architecture:
-
- ./Configure mingw ...
- or
- ./Configure mingw64 ...
- or
- ./Configure ...
- for the default architecture.
-
- Apart from that, follow the Unix / Linux instructions in INSTALL.md.
-
- * It is also possible to build mingw[64] on Linux or Cygwin.
-
- In this case configure with the corresponding --cross-compile-prefix= option.
- For example
-
- ./Configure mingw --cross-compile-prefix=i686-w64-mingw32- ...
- or
- ./Configure mingw64 --cross-compile-prefix=x86_64-w64-mingw32- ...
-
- This requires that you've installed the necessary add-on packages for
- mingw[64] cross compilation.
-
- Linking your application
- ========================
-
- This section applies to all "native" builds.
-
- If you link with static OpenSSL libraries then you're expected to
- additionally link your application with WS2_32.LIB, GDI32.LIB,
- ADVAPI32.LIB, CRYPT32.LIB and USER32.LIB. Those developing
- non-interactive service applications might feel concerned about
- linking with GDI32.LIB and USER32.LIB, as they are justly associated
- with interactive desktop, which is not available to service
- processes. The toolkit is designed to detect in which context it's
- currently executed, GUI, console app or service, and act accordingly,
- namely whether or not to actually make GUI calls. Additionally those
- who wish to /DELAYLOAD:GDI32.DLL and /DELAYLOAD:USER32.DLL and
- actually keep them off service process should consider implementing
- and exporting from .exe image in question own _OPENSSL_isservice not
- relying on USER32.DLL. E.g., on Windows Vista and later you could:
-
- __declspec(dllexport) __cdecl BOOL _OPENSSL_isservice(void)
- { DWORD sess;
- if (ProcessIdToSessionId(GetCurrentProcessId(),&sess))
- return sess==0;
- return FALSE;
- }
-
- If you link with OpenSSL .DLLs, then you're expected to include into
- your application code a small "shim" snippet, which provides
- the glue between the OpenSSL BIO layer and your compiler run-time.
- See also the OPENSSL_Applink manual page.
-
-
- Hosted OpenSSL built using Cygwin
- =================================
-
- Cygwin implements a POSIX/Unix runtime system (cygwin1.dll) on top of the
- Windows subsystem and provides a Bash shell and GNU tools environment.
- Consequently, a build of OpenSSL with Cygwin is virtually identical to the
- Unix procedure.
-
- To build OpenSSL using Cygwin, you need to:
-
- * Install Cygwin, see https://cygwin.com/
-
- * Install Cygwin Perl, at least version 5.10.0
- and ensure it is in the $PATH
-
- * Run the Cygwin Bash shell
-
- Apart from that, follow the Unix / Linux instructions in INSTALL.md.
-
- NOTE: "make test" and normal file operations may fail in directories
- mounted as text (i.e. mount -t c:\somewhere /home) due to Cygwin
- stripping of carriage returns. To avoid this ensure that a binary
- mount is used, e.g. mount -b c:\somewhere /home.
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