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[thirdparty/openssl.git] / INSTALL.W32

 \r
 INSTALLATION ON THE WIN32 PLATFORM\r
 ----------------------------------\r
\r
 [Instructions for building for Windows CE can be found in INSTALL.WCE]\r
\r
 Heres a few comments about building OpenSSL in Windows environments.  Most\r
 of this is tested on Win32 but it may also work in Win 3.1 with some\r
 modification.\r
\r
 You need Perl for Win32.  Unless you will build on Cygwin, you will need\r
 ActiveState Perl, available from http://www.activestate.com/ActivePerl.\r
 For Cygwin users, there's more info in the Cygwin section.\r
\r
 and one of the following C compilers:\r
\r
  * Visual C++\r
  * Borland C\r
  * GNU C (MinGW or Cygwin)\r
\r
 If you want to compile in the assembly language routines with Visual C++ then\r
 you will need an assembler. This is worth doing because it will result in\r
 faster code: for example it will typically result in a 2 times speedup in the\r
 RSA routines. Currently the following assemblers are supported:\r
\r
  * Microsoft MASM (aka "ml")\r
  * Free Netwide Assembler NASM.\r
\r
 MASM is distributed with most versions of VC++. For the versions where it is\r
 not included in VC++, it is also distributed with some Microsoft DDKs, for\r
 example the Windows NT 4.0 DDK and the Windows 98 DDK. If you do not have\r
 either of these DDKs then you can just download the binaries for the Windows\r
 98 DDK and extract and rename the two files XXXXXml.exe and XXXXXml.err, to\r
 ml.exe and ml.err and install somewhere on your PATH. Both DDKs can be\r
 downloaded from the Microsoft developers site www.msdn.com.\r
\r
 NASM is freely available. Version 0.98 was used during testing: other versions\r
 may also work. It is available from many places, see for example:\r
 http://www.kernel.org/pub/software/devel/nasm/binaries/win32/\r
 The NASM binary nasmw.exe needs to be installed anywhere on your PATH.\r
\r
 If you are compiling from a tarball or a CVS snapshot then the Win32 files\r
 may well be not up to date. This may mean that some "tweaking" is required to\r
 get it all to work. See the trouble shooting section later on for if (when?)\r
 it goes wrong.\r
\r
 Visual C++\r
 ----------\r
\r
 Firstly you should run Configure:\r
\r
 > perl Configure VC-WIN32\r
\r
 Next you need to build the Makefiles and optionally the assembly language\r
 files:\r
\r
 - If you are using MASM then run:\r
\r
   > ms\do_masm\r
\r
 - If you are using NASM then run:\r
\r
   > ms\do_nasm\r
\r
 - If you don't want to use the assembly language files at all then run:\r
\r
   > ms\do_ms\r
\r
 If you get errors about things not having numbers assigned then check the\r
 troubleshooting section: you probably won't be able to compile it as it\r
 stands.\r
\r
 Then from the VC++ environment at a prompt do:\r
\r
 > nmake -f ms\ntdll.mak\r
\r
 If all is well it should compile and you will have some DLLs and executables\r
 in out32dll. If you want to try the tests then do:\r
 \r
 > cd out32dll\r
 > ..\ms\test\r
\r
 Tweaks:\r
\r
 There are various changes you can make to the Win32 compile environment. By\r
 default the library is not compiled with debugging symbols. If you add 'debug'\r
 to the mk1mf.pl lines in the do_* batch file then debugging symbols will be\r
 compiled in. Note that mk1mf.pl expects the platform to be the last argument\r
 on the command line, so 'debug' must appear before that, as all other options.\r
\r
 The default Win32 environment is to leave out any Windows NT specific\r
 features.\r
\r
 If you want to enable the NT specific features of OpenSSL (currently only the\r
 logging BIO) follow the instructions above but call the batch file do_nt.bat\r
 instead of do_ms.bat.\r
\r
 You can also build a static version of the library using the Makefile\r
 ms\nt.mak\r
\r
 Borland C++ builder 5\r
 ---------------------\r
\r
 * Configure for building with Borland Builder:\r
   > perl Configure BC-32\r
\r
 * Create the appropriate makefile\r
   > ms\do_nasm\r
\r
 * Build\r
   > make -f ms\bcb.mak\r
\r
 Borland C++ builder 3 and 4\r
 ---------------------------\r
\r
 * Setup PATH. First must be GNU make then bcb4/bin \r
\r
 * Run ms\bcb4.bat\r
\r
 * Run make:\r
   > make -f bcb.mak\r
\r
 GNU C (MinGW)\r
 -------------\r
\r
 * Compiler installation:\r
\r
   MinGW is available from http://www.mingw.org. Run the installer and\r
   set the MinGW \bin directory to the PATH in "System Properties" or\r
   autoexec.bat.\r
\r
 * Compile OpenSSL:\r
\r
   > ms\mingw32\r
\r
   This will create the library and binaries in out. In case any problems\r
   occur, try\r
   > ms\mingw32 no-asm\r
   instead.\r
\r
   libcrypto.a and libssl.a are the static libraries. To use the DLLs,\r
   link with libeay32.a and libssl32.a instead.\r
\r
   See troubleshooting if you get error messages about functions not having\r
   a number assigned.\r
\r
 * You can now try the tests:\r
\r
   > cd out\r
   > ..\ms\test\r
\r
 GNU C (Cygwin)\r
 --------------\r
\r
 Cygwin provides a bash shell and GNU tools environment running\r
 on NT 4.0, Windows 9x, Windows ME, Windows 2000, and Windows XP.\r
 Consequently, a make of OpenSSL with Cygwin is closer to a GNU\r
 bash environment such as Linux than to other W32 makes which are\r
 based on a single makefile approach. Cygwin implements Posix/Unix\r
 calls through cygwin1.dll, and is contrasted to MingW which links\r
 dynamically to msvcrt.dll or crtdll.dll.\r
\r
 To build OpenSSL using Cygwin:\r
\r
 * Install Cygwin (see http://cygwin.com/)\r
\r
 * Install Perl and ensure it is in the path (recent Cygwin perl \r
   (version 5.6.1-2 of the latter has been reported to work) or\r
   ActivePerl)\r
\r
 * Run the Cygwin bash shell\r
\r
 * $ tar zxvf openssl-x.x.x.tar.gz\r
   $ cd openssl-x.x.x\r
   $ ./config\r
   [...]\r
   $ make\r
   [...]\r
   $ make test\r
   $ make install\r
\r
 This will create a default install in /usr/local/ssl.\r
\r
 Cygwin Notes:\r
\r
 "make test" and normal file operations may fail in directories\r
 mounted as text (i.e. mount -t c:\somewhere /home) due to Cygwin\r
 stripping of carriage returns. To avoid this ensure that a binary\r
 mount is used, e.g. mount -b c:\somewhere /home.\r
\r
 "bc" is not provided in older Cygwin distribution.  This causes a\r
 non-fatal error in "make test" but is otherwise harmless.  If\r
 desired and needed, GNU bc can be built with Cygwin without change.\r
\r
\r
 Installation\r
 ------------\r
\r
 If you used the Cygwin procedure above, you have already installed and\r
 can skip this section.  For all other procedures, there's currently no real\r
 installation procedure for Win32.  There are, however, some suggestions:\r
\r
    - do nothing.  The include files are found in the inc32/ subdirectory,\r
      all binaries are found in out32dll/ or out32/ depending if you built\r
      dynamic or static libraries.\r
\r
    - do as is written in INSTALL.Win32 that comes with modssl:\r
\r
	$ md c:\openssl \r
	$ md c:\openssl\bin\r
	$ md c:\openssl\lib\r
	$ md c:\openssl\include\r
	$ md c:\openssl\include\openssl\r
	$ copy /b inc32\*               c:\openssl\include\openssl\r
	$ copy /b out32dll\ssleay32.lib c:\openssl\lib\r
	$ copy /b out32dll\libeay32.lib c:\openssl\lib\r
	$ copy /b out32dll\ssleay32.dll c:\openssl\bin\r
	$ copy /b out32dll\libeay32.dll c:\openssl\bin\r
	$ copy /b out32dll\openssl.exe  c:\openssl\bin\r
\r
      Of course, you can choose another device than c:.  C: is used here\r
      because that's usually the first (and often only) harddisk device.\r
      Note: in the modssl INSTALL.Win32, p: is used rather than c:.\r
\r
\r
 Troubleshooting\r
 ---------------\r
\r
 Since the Win32 build is only occasionally tested it may not always compile\r
 cleanly.  If you get an error about functions not having numbers assigned\r
 when you run ms\do_ms then this means the Win32 ordinal files are not up to\r
 date. You can do:\r
\r
 > perl util\mkdef.pl crypto ssl update\r
\r
 then ms\do_XXX should not give a warning any more. However the numbers that\r
 get assigned by this technique may not match those that eventually get\r
 assigned in the CVS tree: so anything linked against this version of the\r
 library may need to be recompiled.\r
\r
 If you get errors about unresolved symbols there are several possible\r
 causes.\r
\r
 If this happens when the DLL is being linked and you have disabled some\r
 ciphers then it is possible the DEF file generator hasn't removed all\r
 the disabled symbols: the easiest solution is to edit the DEF files manually\r
 to delete them. The DEF files are ms\libeay32.def ms\ssleay32.def.\r
\r
 Another cause is if you missed or ignored the errors about missing numbers\r
 mentioned above.\r
\r
 If you get warnings in the code then the compilation will halt.\r
\r
 The default Makefile for Win32 halts whenever any warnings occur. Since VC++\r
 has its own ideas about warnings which don't always match up to other\r
 environments this can happen. The best fix is to edit the file with the\r
 warning in and fix it. Alternatively you can turn off the halt on warnings by\r
 editing the CFLAG line in the Makefile and deleting the /WX option.\r
\r
 You might get compilation errors. Again you will have to fix these or report\r
 them.\r
\r
 One final comment about compiling applications linked to the OpenSSL library.\r
 If you don't use the multithreaded DLL runtime library (/MD option) your\r
 program will almost certainly crash because malloc gets confused -- the\r
 OpenSSL DLLs are statically linked to one version, the application must\r
 not use a different one.  You might be able to work around such problems\r
 by adding CRYPTO_malloc_init() to your program before any calls to the\r
 OpenSSL libraries: This tells the OpenSSL libraries to use the same\r
 malloc(), free() and realloc() as the application.  However there are many\r
 standard library functions used by OpenSSL that call malloc() internally\r
 (e.g. fopen()), and OpenSSL cannot change these; so in general you cannot\r
 rely on CRYPTO_malloc_init() solving your problem, and you should\r
 consistently use the multithreaded library.\r