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Gabriel Scherer e331dacf29 PR#6482: ocamlbuild fails when _tags file in unhygienic directory 
ocamlbuild lazily traverses directory to build a vision of the
filesystem tree in which the build happens. During that traversals, it
parses any configuration file `_tags` it encouters. PR#6482 was caused
by the fact that the configuration-parsing code used the relative path
of the _tags file, which was correct at the time of traversal, but
stale at the time the lazy thunk was in fact forced (a Sys.chdir had
occured in between).

The first fix is to detect when relative paths become stale, and use
the correct absolute path in that situation.

The reason why this lazy thunk was only forced after a Sys.chdir is
that, at hygiene time, only the subtrees that are selected for hygiene
checking are forced. It is an unexpected behavior that non-hygienic
subtrees could remain unforced for so long (in particular, the
semantics of parsing a configuration file only much later in the build
process is more than unclear); this commit also removes this behavior
by always forcing the whole traversed subtree just before hygiene.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15000 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
 		2014-07-14 14:44:53 +00:00
asmcomp Fix for PR#6441 (Stefan Holdermans) 2014-06-05 15:59:15 +00:00
asmrun Reflecting commit 14978 on version/4.02: 2014-06-10 08:45:47 +00:00
boot PR#6418: support "@[<hov %d>" in the new format implementation (Benoît Vaugon) 2014-06-14 21:08:50 +00:00
bytecomp first part of Benoît Vaugon's format-gadts patch 2014-05-12 15:37:29 +00:00
byterun PR 6439 part 1: fix mistake in backtrace.c 2014-05-30 09:52:05 +00:00
compilerlibs Install compiler internals (as libraries + compiled interfaces + start modules) 2012-05-17 16:04:13 +00:00
config PR#6075: avoid using unsafe C library functions (strcpy, strcat, sprintf). 2014-04-15 17:09:13 +00:00
debugger merge branch "safe-string" 2014-04-29 11:56:17 +00:00
driver * split Typetexp.lookup_module and Typetexp.find_module 2014-05-12 12:02:26 +00:00
emacs Merge branch 4.01 from branching point to 4.01.0+rc1 2013-09-04 15:12:37 +00:00
experimental Doc. 2014-04-16 12:40:24 +00:00
lex merge branch "safe-string" 2014-04-29 11:56:17 +00:00
man fix man pages: should be open! 2014-05-11 00:25:57 +00:00
ocamlbuild PR#6482: ocamlbuild fails when _tags file in unhygienic directory 2014-07-14 14:44:53 +00:00
ocamldoc PR#6274: allow doc comments on object types 2014-05-22 13:38:29 +00:00
otherlibs Fix PR#6417: sprintf broken when local module named Pervasives is in scope 2014-06-09 13:53:45 +00:00
parsing PR#6469: -dsource prints Pervasives.(!) as Pervasives.! 2014-07-11 12:07:54 +00:00
stdlib PR#6418: support "@[<hov %d>" in the new format implementation (Benoît Vaugon) 2014-06-14 21:08:50 +00:00
testsuite Fix for PR#6441 (Stefan Holdermans) 2014-06-05 15:59:15 +00:00
tools still debugging the ci-build script (take 3) 2014-06-05 09:57:20 +00:00
toplevel Reflecting commit 14976 on version/4.02: 2014-06-09 15:14:41 +00:00
typing PR#6418: support "@[<hov %d>" in the new format implementation (Benoît Vaugon) 2014-06-14 21:08:50 +00:00
utils commit o_and_opens.diff 2014-05-11 00:17:05 +00:00
yacc merge from 4.02 (rev. 14929): add configure detection of mkstemp, remove old HAVE_MKSTEMP conditional, rename HAVE_MKSTEMP -> HAS_MKSTEMP 2014-05-30 12:49:24 +00:00
.depend update .depend 2014-05-16 17:32:47 +00:00
.gitignore [minor] auto-generate a .gitignore using `git svn show-ignore` 2014-05-01 09:39:38 +00:00
.ignore configure: SO must be "so" or "dll" without the dot 2013-12-17 09:58:47 +00:00
.ocp-indent Adding an ocp-indent customization file for the project. 2013-09-11 14:13:58 +00:00
.travis-ci.sh install the dev version of utop in travis 2014-05-14 10:46:07 +00:00
.travis.yml add travis CI files (github.com/avsm/ocaml 22e0620) 2014-05-01 10:30:21 +00:00
Changes PR#6482: ocamlbuild fails when _tags file in unhygienic directory 2014-07-14 14:44:53 +00:00
INSTALL merge from 4.02 (rev 14931): update instructions for 32-bit builds on Mac OS X (PR 6196) 2014-05-30 13:05:01 +00:00
LICENSE remove camlp4 2013-11-21 16:23:28 +00:00
Makefile Makefile factorization 2014-06-09 13:53:43 +00:00
Makefile.nt stop doing chmod -w on utils/config.ml (PR 6319) 2014-06-06 12:01:16 +00:00
README remove camlp4 2013-11-21 16:23:28 +00:00
README.win32 remove camlp4 2013-11-21 16:23:28 +00:00
VERSION change version number after branching 4.02 2014-05-12 19:04:06 +00:00
configure merge from 4.02 (rev. 14929): add configure detection of mkstemp, remove old HAVE_MKSTEMP conditional, rename HAVE_MKSTEMP -> HAS_MKSTEMP 2014-05-30 12:49:24 +00:00

README 

OVERVIEW:

OCaml is an implementation of the ML language, based on the Caml Light
dialect extended with a complete class-based object system and a
powerful module system in the style of Standard ML.

OCaml comprises two compilers. One generates bytecode which is then
interpreted by a C program. This compiler runs quickly, generates
compact code with moderate memory requirements, and is portable to
essentially any 32 or 64 bit Unix platform. Performance of generated
programs is quite good for a bytecoded implementation.  This compiler
can be used either as a standalone, batch-oriented compiler that
produces standalone programs, or as an interactive, toplevel-based
system.

The other compiler generates high-performance native code for a number
of processors. Compilation takes longer and generates bigger code, but
the generated programs deliver excellent performance, while retaining
the moderate memory requirements of the bytecode compiler. The
native-code compiler currently runs on the following platforms:

Tier 1 (actively used and maintained by the core OCaml team):

    AMD64 (Opteron)    Linux, MacOS X, MS Windows
    IA32 (Pentium)     Linux, FreeBSD, MacOS X, MS Windows
    PowerPC            Linux, MacOS X
    ARM                Linux

Tier 2 (maintained when possible, with help from users):

    AMD64              FreeBSD, OpenBSD
    IA32 (Pentium)     NetBSD, OpenBSD, Solaris 9
    PowerPC            NetBSD
    SPARC              Solaris, Linux, NetBSD

Other operating systems for the processors above have not been tested,
but the compiler may work under other operating systems with little work.

Before the introduction of objects, OCaml was known as Caml Special
Light. OCaml is almost upwards compatible with Caml Special Light,
except for a few additional reserved keywords that have forced some
renaming of standard library functions.

CONTENTS:

  Changes               what's new with each release
  INSTALL               instructions for installation
  LICENSE               license and copyright notice
  Makefile              main Makefile
  README                this file
  README.win32          infos on the MS Windows ports of OCaml
  asmcomp/              native-code compiler and linker
  asmrun/               native-code runtime library
  boot/                 bootstrap compiler
  bytecomp/             bytecode compiler and linker
  byterun/              bytecode interpreter and runtime system
  config/               autoconfiguration stuff
  debugger/             source-level replay debugger
  driver/               driver code for the compilers
  emacs/                OCaml editing mode and debugger interface for GNU Emacs
  lex/                  lexer generator
  maccaml/              the Macintosh GUI
  ocamldoc/             documentation generator
  otherlibs/            several external libraries
  parsing/              syntax analysis
  stdlib/               standard library
  tools/                various utilities
  toplevel/             interactive system
  typing/               typechecking
  utils/                utility libraries
  yacc/                 parser generator

COPYRIGHT:

All files marked "Copyright INRIA" in this distribution are copyright
1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
2007, 2008, 2009, 2010, 2011, 2012 Institut National de Recherche en
Informatique et en Automatique (INRIA) and distributed under the
conditions stated in file LICENSE.

INSTALLATION:

See the file INSTALL for installation instructions on Unix, Linux and
MacOS X machines.  For MS Windows, see README.win32.

DOCUMENTATION:

The OCaml manual is distributed in HTML, PDF, Postscript, DVI, and
Emacs Info files.  It is available on the World Wide Web, at

        http://caml.inria.fr/

AVAILABILITY:

The complete OCaml distribution can be accessed at

        http://caml.inria.fr/

KEEPING IN TOUCH WITH THE CAML COMMUNITY:

There exists a mailing list of users of the OCaml implementations
developed at INRIA. The purpose of this list is to share
experience, exchange ideas (and even code), and report on applications
of the OCaml language. Messages can be written in English or in
French. The list has more than 1000 subscribers.

Messages to the list should be sent to:

              caml-list@inria.fr

You can subscribe to this list via the Web interface at

        https://sympa-roc.inria.fr/wws/info/caml-list

Archives of the list are available on the Web site above.

The Usenet news groups comp.lang.ml and comp.lang.functional
also contains discussions about the ML family of programming languages,
including OCaml.

BUG REPORTS AND USER FEEDBACK:

Please report bugs using the Web interface to the bug-tracking system
at http://caml.inria.fr/bin/caml-bugs

To be effective, bug reports should include a complete program
(preferably small) that exhibits the unexpected behavior, and the
configuration you are using (machine type, etc).

You can also contact the implementors directly at caml@inria.fr.