INSTALL.W32

   1
   2  INSTALLATION ON THE WIN32 PLATFORM
   3  ----------------------------------
   4
   5  Heres a few comments about building OpenSSL in Windows environments.  Most
   6  of this is tested on Win32 but it may also work in Win 3.1 with some
   7  modification.
   8
   9  You need Perl for Win32.  Unless you will build on Cygwin, you will need
  10  ActiveState Perl, available from http://www.activestate.com/ActivePerl.
  11  For Cygwin users, there's more info in the Cygwin section.
  12
  13  and one of the following C compilers:
  14
  15   * Visual C++
  16   * Borland C
  17   * GNU C (Mingw32 or Cygwin)
  18
  19  If you want to compile in the assembly language routines with Visual C++ then
  20  you will need an assembler. This is worth doing because it will result in
  21  faster code: for example it will typically result in a 2 times speedup in the
  22  RSA routines. Currently the following assemblers are supported:
  23
  24   * Microsoft MASM (aka "ml")
  25   * Free Netwide Assembler NASM.
  26
  27  MASM was at one point distributed with VC++. It is now distributed with some
  28  Microsoft DDKs, for example the Windows NT 4.0 DDK and the Windows 98 DDK. If
  29  you do not have either of these DDKs then you can just download the binaries
  30  for the Windows 98 DDK and extract and rename the two files XXXXXml.exe and
  31  XXXXXml.err, to ml.exe and ml.err and install somewhere on your PATH. Both
  32  DDKs can be downloaded from the Microsoft developers site www.msdn.com.
  33
  34  NASM is freely available. Version 0.98 was used during testing: other versions
  35  may also work. It is available from many places, see for example:
  36  http://www.kernel.org/pub/software/devel/nasm/binaries/win32/
  37  The NASM binary nasmw.exe needs to be installed anywhere on your PATH.
  38
  39  If you are compiling from a tarball or a CVS snapshot then the Win32 files
  40  may well be not up to date. This may mean that some "tweaking" is required to
  41  get it all to work. See the trouble shooting section later on for if (when?)
  42  it goes wrong.
  43
  44  Visual C++
  45  ----------
  46
  47  Firstly you should run Configure:
  48
  49  > perl Configure VC-WIN32
  50
  51  Next you need to build the Makefiles and optionally the assembly language
  52  files:
  53
  54  - If you are using MASM then run:
  55
  56    > ms\do_masm
  57
  58  - If you are using NASM then run:
  59
  60    > ms\do_nasm
  61
  62  - If you don't want to use the assembly language files at all then run:
  63
  64    > ms\do_ms
  65
  66  If you get errors about things not having numbers assigned then check the
  67  troubleshooting section: you probably won't be able to compile it as it
  68  stands.
  69
  70  Then from the VC++ environment at a prompt do:
  71
  72  > nmake -f ms\ntdll.mak
  73
  74  If all is well it should compile and you will have some DLLs and executables
  75  in out32dll. If you want to try the tests then do:
  76
  77  > cd out32dll
  78  > ..\ms\test
  79
  80  Tweaks:
  81
  82  There are various changes you can make to the Win32 compile environment. By
  83  default the library is not compiled with debugging symbols. If you add 'debug'
  84  to the mk1mf.pl lines in the do_* batch file then debugging symbols will be
  85  compiled in.
  86
  87  The default Win32 environment is to leave out any Windows NT specific
  88  features.
  89
  90  If you want to enable the NT specific features of OpenSSL (currently only the
  91  logging BIO) follow the instructions above but call the batch file do_nt.bat
  92  instead of do_ms.bat.
  93
  94  You can also build a static version of the library using the Makefile
  95  ms\nt.mak
  96
  97  Borland C++ builder 5
  98  ---------------------
  99
 100  * Configure for building with Borland Builder:
 101    > perl Configure BC-32
 102
 103  * Create the appropriate makefile
 104    > ms\do_nasm
 105
 106  * Build
 107    > make -f ms\bcb.mak
 108
 109  Borland C++ builder 3 and 4
 110  ---------------------------
 111
 112  * Setup PATH. First must be GNU make then bcb4/bin
 113
 114  * Run ms\bcb4.bat
 115
 116  * Run make:
 117    > make -f bcb.mak
 118
 119  GNU C (Mingw32)
 120  ---------------
 121
 122  To build OpenSSL, you need the Mingw32 package and GNU make.
 123
 124  * Compiler installation:
 125
 126    Mingw32 is available from <ftp://ftp.xraylith.wisc.edu/pub/khan/
 127    gnu-win32/mingw32/gcc-2.95.2/gcc-2.95.2-msvcrt.exe>. Extract it
 128    to a directory such as C:\gcc-2.95.2 and add c:\gcc-2.95.2\bin to
 129    the PATH environment variable in "System Properties"; or edit and
 130    run C:\gcc-2.95.2\mingw32.bat to set the PATH.
 131
 132  * Compile OpenSSL:
 133
 134    > ms\mingw32
 135
 136    This will create the library and binaries in out. In case any problems
 137    occur, try
 138    > ms\mingw32 no-asm
 139    instead.
 140
 141    libcrypto.a and libssl.a are the static libraries. To use the DLLs,
 142    link with libeay32.a and libssl32.a instead.
 143
 144    See troubleshooting if you get error messages about functions not having
 145    a number assigned.
 146
 147  * You can now try the tests:
 148
 149    > cd out
 150    > ..\ms\test
 151
 152  GNU C (Cygwin)
 153  --------------
 154
 155  Cygwin provides a bash shell and GNU tools environment running
 156  on NT 4.0, Windows 9x, Windows ME, Windows 2000, and Windows XP.
 157  Consequently, a make of OpenSSL with Cygwin is closer to a GNU
 158  bash environment such as Linux than to other W32 makes which are
 159  based on a single makefile approach. Cygwin implements Posix/Unix
 160  calls through cygwin1.dll, and is contrasted to Mingw32 which links
 161  dynamically to msvcrt.dll or crtdll.dll.
 162
 163  To build OpenSSL using Cygwin:
 164
 165  * Install Cygwin (see http://cygwin.com/)
 166
 167  * Install Perl and ensure it is in the path (recent Cygwin perl
 168    (version 5.6.1-2 of the latter has been reported to work) or
 169    ActivePerl)
 170
 171  * Run the Cygwin bash shell
 172
 173  * $ tar zxvf openssl-x.x.x.tar.gz
 174    $ cd openssl-x.x.x
 175    $ ./config
 176    [...]
 177    $ make
 178    [...]
 179    $ make test
 180    $ make install
 181
 182  This will create a default install in /usr/local/ssl.
 183
 184  Cygwin Notes:
 185
 186  "make test" and normal file operations may fail in directories
 187  mounted as text (i.e. mount -t c:\somewhere /home) due to Cygwin
 188  stripping of carriage returns. To avoid this ensure that a binary
 189  mount is used, e.g. mount -b c:\somewhere /home.
 190
 191  "bc" is not provided in older Cygwin distribution.  This causes a
 192  non-fatal error in "make test" but is otherwise harmless.  If
 193  desired and needed, GNU bc can be built with Cygwin without change.
 194
 195
 196  Installation
 197  ------------
 198
 199  If you used the Cygwin procedure above, you have already installed and
 200  can skip this section.  For all other procedures, there's currently no real
 201  installation procedure for Win32.  There are, however, some suggestions:
 202
 203     - do nothing.  The include files are found in the inc32/ subdirectory,
 204       all binaries are found in out32dll/ or out32/ depending if you built
 205       dynamic or static libraries.
 206
 207     - do as is written in INSTALL.Win32 that comes with modssl:
 208
 209         $ md c:\openssl
 210         $ md c:\openssl\bin
 211         $ md c:\openssl\lib
 212         $ md c:\openssl\include
 213         $ md c:\openssl\include\openssl
 214         $ copy /b inc32\*               c:\openssl\include\openssl
 215         $ copy /b out32dll\ssleay32.lib c:\openssl\lib
 216         $ copy /b out32dll\libeay32.lib c:\openssl\lib
 217         $ copy /b out32dll\ssleay32.dll c:\openssl\bin
 218         $ copy /b out32dll\libeay32.dll c:\openssl\bin
 219         $ copy /b out32dll\openssl.exe  c:\openssl\bin
 220
 221       Of course, you can choose another device than c:.  C: is used here
 222       because that's usually the first (and often only) harddisk device.
 223       Note: in the modssl INSTALL.Win32, p: is used rather than c:.
 224
 225
 226  Troubleshooting
 227  ---------------
 228
 229  Since the Win32 build is only occasionally tested it may not always compile
 230  cleanly.  If you get an error about functions not having numbers assigned
 231  when you run ms\do_ms then this means the Win32 ordinal files are not up to
 232  date. You can do:
 233
 234  > perl util\mkdef.pl crypto ssl update
 235
 236  then ms\do_XXX should not give a warning any more. However the numbers that
 237  get assigned by this technique may not match those that eventually get
 238  assigned in the CVS tree: so anything linked against this version of the
 239  library may need to be recompiled.
 240
 241  If you get errors about unresolved symbols there are several possible
 242  causes.
 243
 244  If this happens when the DLL is being linked and you have disabled some
 245  ciphers then it is possible the DEF file generator hasn't removed all
 246  the disabled symbols: the easiest solution is to edit the DEF files manually
 247  to delete them. The DEF files are ms\libeay32.def ms\ssleay32.def.
 248
 249  Another cause is if you missed or ignored the errors about missing numbers
 250  mentioned above.
 251
 252  If you get warnings in the code then the compilation will halt.
 253
 254  The default Makefile for Win32 halts whenever any warnings occur. Since VC++
 255  has its own ideas about warnings which don't always match up to other
 256  environments this can happen. The best fix is to edit the file with the
 257  warning in and fix it. Alternatively you can turn off the halt on warnings by
 258  editing the CFLAG line in the Makefile and deleting the /WX option.
 259
 260  You might get compilation errors. Again you will have to fix these or report
 261  them.
 262
 263  One final comment about compiling applications linked to the OpenSSL library.
 264  If you don't use the multithreaded DLL runtime library (/MD option) your
 265  program will almost certainly crash because malloc gets confused -- the
 266  OpenSSL DLLs are statically linked to one version, the application must
 267  not use a different one.  You might be able to work around such problems
 268  by adding CRYPTO_malloc_init() to your program before any calls to the
 269  OpenSSL libraries: This tells the OpenSSL libraries to use the same
 270  malloc(), free() and realloc() as the application.  However there are many
 271  standard library functions used by OpenSSL that call malloc() internally
 272  (e.g. fopen()), and OpenSSL cannot change these; so in general you cannot
 273  rely on CRYPTO_malloc_init() solving your problem, and you should
 274  consistently use the multithreaded library.