249 lines
8.7 KiB
Plaintext
249 lines
8.7 KiB
Plaintext
Release notes on the MS Windows ports of Objective Caml
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-------------------------------------------------------
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Starting with OCaml 3.05, there are no less than three ports of
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Objective Caml for MS Windows available:
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- a native Win32 port, built with the Microsoft development tools;
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- a native Win32 port, built with the Cygwin/MinGW development tools;
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- a port consisting of the Unix sources compiled under the Cygwin
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Unix-like environment for Windows.
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Here is a summary of the main differences between these ports:
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Native MS Native MinGW Cygwin
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Third-party software required
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- for base bytecode system none none none
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- for ocamlc -custom MSVC Cygwin Cygwin
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- for native-code generation MSVC+MASM Cygwin Cygwin
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Speed of bytecode interpreter 70% 100% 100%
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Replay debugger no no yes
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The Unix library partial partial full
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The Threads library yes yes yes
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The Graphics library yes yes no
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Restrictions on generated executables? none none yes (*)
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(*) Cygwin-generated .exe files refer to a DLL that is distributed under
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the GPL. Thus, these .exe files can only be distributed under a license
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that is compatible with the GPL. Executables generated by MSVC or by
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MinGW have no such restrictions.
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The remainder of this document gives more information on each port.
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------------------------------------------------------------------------------
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The native Win32 port built with Microsoft Visual C
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---------------------------------------------------
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REQUIREMENTS:
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This port runs under MS Windows NT, 2000 and XP.
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Windows 95, 98 and ME are also supported, but less reliably.
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The base bytecode system (ocamlc, ocaml, ocamllex, ocamlyacc, ...)
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runs without any additional tools.
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Statically linking Caml bytecode with C code (ocamlc -custom) requires the
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Microsoft Visual C++ compiler. Dynamic loading of DLLs is
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supported out of the box, without additional software.
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The native-code compiler (ocamlopt) requires Visual C++ and the
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Microsoft assembler MASM version 6.11 or later. MASM can be
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downloaded for free from Microsoft's Web site; for directions, see
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http://www.easystreet.com/~jkirwan/pctools.html
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or http://www2.dgsys.com/~raymoon/faq/masm.html
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or the comp.lang.asm.x86 FAQ.
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The LablTk GUI requires Tcl/Tk 8.3. Windows binaries are
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available from http://prdownloads.sourceforge.net/tcl/tcl832.exe.
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INSTALLATION:
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The binary distribution is a self-installing executable archive.
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Just run it and it should install OCaml automatically.
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If you are using Windows 95, 98 or ME, you need to adjust environment
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variables as follows:
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- add the "bin" subdirectory of the OCaml installation directory
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to the PATH variable;
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- set the OCAMLLIB variable to the "lib" subdirectory of the
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OCaml installation directory.
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For instance, if you installed OCaml in C:\Program Files\Objective Caml,
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add the following two lines at the end of C:\autoexec.bat:
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set PATH=%PATH%;"C:\Program Files\Objective Caml\bin"
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set OCAMLLIB=C:\Program Files\Objective Caml\lib
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No such tweaking of environment variables is needed under NT, 2000 and XP.
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To run programs that use the LablTK GUI, the directory where the
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DLLs tk83.dll and tcl83.dll were installed (by the Tcl/Tk
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installer) must be added to the PATH environment variable.
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To compile programs that use the LablTK GUI, the directory where the
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libraries tk83.lib and tcl83.lib were installed (by the Tcl/Tk
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installer) must be added to the library search path in the LIB
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environment variable. E.g. if Tcl/Tk was installed in C:\tcl, add
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"C:\tcl\lib" to the LIB environment variable.
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RECOMPILATION FROM THE SOURCES:
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The command-line tools can be recompiled from the Unix source
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distribution (ocaml-X.YZ.tar.gz), which also contains the files modified
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for Windows.
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You will need the following software components to perform the recompilation:
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- Windows NT, 2000, or XP (we advise against compiling under Windows 95/98/ME)
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- Visual C++ version 6 or 7
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- MASM version 6.11 (see above)
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- The CygWin port of GNU tools, available from
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http://sourceware.cygnus.com/cygwin/
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- TCL/TK version 8.3 (for the LablTK GUI) (see above).
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Remember to add the directory where the libraries tk83.lib and
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tcl83.lib were installed (by the Tcl/Tk installer) to the LIB variable
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(library search path).
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To recompile, start a Cygwin shell and change to the top-level
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directory of the OCaml distribution. Then, do
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cp config/m-nt.h config/m.h
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cp config/s-nt.h config/s.h
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cp config/Makefile.msvc config/Makefile
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Then, edit config/Makefile as needed, following the comments in this file.
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Normally, the only variables that need to be changed are
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PREFIX where to install everything
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TK_ROOT where TCL/TK was installed
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Finally, use "make -f Makefile.nt" to build the system, e.g.
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make -f Makefile.nt world
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make -f Makefile.nt bootstrap
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make -f Makefile.nt opt
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make -f Makefile.nt install
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NOTES:
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* The VC++ compiler does not implement "computed gotos", and therefore
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generates inefficient code for byterun/interp.c. Consequently, the
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performance of bytecode programs is about 2/3 of that obtained under
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Unix/GCC or Cygwin or Mingw on similar hardware.
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* Libraries available in this port: "num", "str", "threads", "graphics",
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"labltk", and large parts of "unix".
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* The replay debugger is not supported.
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CREDITS:
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The initial port of Caml Special Light (the ancestor of Objective Caml)
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to Windows NT was done by Kevin Gallo at Microsoft Research, who
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kindly contributed his changes to the Caml project.
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The graphical user interface for the toplevel is due to Jacob Navia.
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------------------------------------------------------------------------------
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The native Win32 port built with Mingw
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--------------------------------------
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REQUIREMENTS:
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This port runs under MS Windows NT, 2000 and XP.
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Windows 95, 98 and ME are also supported, but less reliably.
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The base bytecode system (ocamlc, ocaml, ocamllex, ocamlyacc, ...)
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runs without any additional tools.
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The native-code compiler (ocamlopt), as well as static linking of
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Caml bytecode with C code (ocamlc -custom), require
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the Cygwin development tools, available at
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http://sources.redhat.com/cygwin/
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The LablTk GUI requires Tcl/Tk 8.3. Windows binaries are
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available from http://prdownloads.sourceforge.net/tcl/tcl832.exe.
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INSTALLATION:
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There is no binary distribution yet, so please follow the compilation
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instructions below.
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RECOMPILATION FROM THE SOURCES:
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You will need the following software components to perform the recompilation:
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- Windows NT, 2000, or XP (we advise against compiling under Windows 95/98/ME)
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- Cygwin: http://sourceware.cygnus.com/cygwin/
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- TCL/TK version 8.3 (see above).
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Start a Cygwin shell and unpack the source distribution
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(ocaml-X.YZ.tar.gz) with "tar xzf". Change to the top-level
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directory of the OCaml distribution. Then, do
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cp config/m-nt.h config/m.h
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cp config/s-nt.h config/s.h
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cp config/Makefile.mingw config/Makefile
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Then, edit config/Makefile as needed, following the comments in this file.
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Normally, the only variables that need to be changed are
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PREFIX where to install everything
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TK_ROOT where TCL/TK was installed
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Finally, use "make -f Makefile.nt" to build the system, e.g.
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make -f Makefile.nt world
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make -f Makefile.nt bootstrap
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make -f Makefile.nt opt
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make -f Makefile.nt opt.opt
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make -f Makefile.nt install
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NOTES:
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* Libraries available in this port: "num", "str", "threads", "graphics",
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"labltk", and large parts of "unix".
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* The replay debugger is not supported.
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------------------------------------------------------------------------------
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The Cygwin port of Objective Caml
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---------------------------------
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REQUIREMENTS:
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This port requires the Cygwin environment from Cygnus/RedHat, which
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is freely available at:
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http://sources.redhat.com/cygwin/
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This port runs under all versions of MS Windows supported by Cygwin.
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INSTALLATION:
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For various reasons, no binary distribution of this port is available.
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You need to recompile from the source distribution.
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RECOMPILATION FROM THE SOURCES:
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Just follow the instructions for Unix machines given in the file INSTALL.
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NOTES:
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The libraries available in this port are "num", "str", "threads",
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"unix" and "labltk". "graph" is not available yet.
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The replay debugger is supported.
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