INSTALL.W32

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