include:
- #6583: add a new class of binary operators with the same syntactic
precedence as method calls; these operators start with # followed
by a non-empty sequence of operator symbols (for instance #+, #!?).
It is also possible to use '#' as part of these extra symbols
(for instance ##, or #+#); this is rejected by the type-checker,
but can be used e.g. by ppx rewriters.
* #6016: add a "nonrec" keyword for type declarations
- #6600: make -short-paths faster by building the printing map
incrementally
- #6642: replace $CAMLORIGIN in -ccopt with the path to cma or cmxa
to output an object file with included runtime and autolink libraries
- #6845: -no-check-prims to tell ocamlc not to check primitives in runtime
- G#149: Attach documentation comments to parse tree
- G#159: Better locations for structure/signature items
- #5958: generalized polymorphic #install_printer
- #6237: explicit "infer" tag to control or disable menhir --infer
- #6625: pass -linkpkg to files built with -output-obj.
- #6712: Ignore common VCS directories
- #6720: pass -g to C compilers when tag 'debug' is set
- #6733: add .byte.so and .native.so targets to pass
-output-obj -cclib -shared.
- #6733: "runtime_variant(X)" to pass -runtime-variant X option.
- #6774: new menhir-specific flags "only_tokens" and "external_tokens(Foo)"
- #6285: Add support for nanosecond precision in Unix.stat()
- #6781: Add higher baud rates to Unix termios
- #6834: Add Obj.{first,last}_non_constant_constructor_tag
- #6078: Release the runtime system when calling caml_dlopen
- #6675: GC hooks
- #5418 (comments) : generate dependencies with $(CC) instead of gcc
- #6266: Cross compilation for iOs, Android etc
- Update instructions for x86-64 PIC mode and POWER architecture builds
- #6452, G#140: add internal suport for custom printing formats
- #6641: add -g, -ocamlcflags, -ocamloptflags options to ocamlmklib
- #6693: also build libasmrun_shared.so and lib{asm,caml}run_pic.a
- #6842: export Typemod.modtype_of_package
- G#139: more versatile specification of locations of .annot
- G#157: store the path of cmos inside debug section at link time
- G#191: Making gc.h and some part of memory.h public
a new patch to include a -pkgsrc-runtime compilation option. This option is
needed to compile devel/pcre-ocaml due to buildlink shenanigans
(see http://mail-index.netbsd.org/pkgsrc-users/2014/12/18/msg020800.html )
Changes:
(Changes that can break existing programs are marked with a "*")
Standard library:
* Add optional argument ?limit to Arg.align.
- Bug in Makefile.nt: won't stop on error
- Improve MSVC build
- Configure doesn't detect features correctly on Haiku
- Non-exhaustive matching warning message for open types is confusing
- fix quadratic-time algorithm in Consistbl.extract.
- Add stack overflow handling for native code (OpenBSD i386 and amd64)
- broken semantics of %(%) when substitued by a box
- legacy support for %.10s
- better documentation of flag # in format strings
- Bytes and CamlinternalFormat missing from threads stdlib.cma
- -dsource omits parens for `List ((`String "A")::[]) in patterns
- __MODULE__ aborts the compiler if the module name cannot be inferred
- Debug section is sometimes not readable when using -pack
- Missing command line options for ocamldoc
- fix race condition when retrieving backtraces
- String.sub throws Invalid_argument("Bytes.sub")
- Fix ocamldebug module source lookup
- Inclusion of packs failing to run module initializers
- infinite loop in Mtype.remove_aliases
- compilation fails with Env.Error(_)
- -short-paths and signature inclusion errors
- Fatal error with recursive modules
- Recursive module containing alias causes Segmentation fault
- Some bugs in generative functors
- ocamldep support for "-open M"
- Code generation errors for ARM
- Improve Windows (MSVC and mingw) build
- ocamlbuild: add -bin-annot when using -pack
- Fatal error when tracing a function with abstract type
- ocamlbuild: add an -ocamlmklib option to change the ocamlmklib command
also upstream changelog):
Language features:
- Attributes and extension nodes
- Generative functors
- Module aliases
* Alternative syntax for string literals {id|...|id} (can break comments)
- Separation between read-only strings (type string) and read-write byte
sequences (type bytes). Activated by command-line option -safe-string.
Build system for the OCaml distribution:
- Use -bin-annot when building.
- Use GNU make instead of portable makefiles.
- Updated build instructions for 32-bit Mac OS X on Intel hardware.
Shedding weight:
* Removed Camlp4 from the distribution, now available as third-party software.
* Removed Labltk from the distribution, now available as a third-party library.
Type system:
* Keep typing of pattern cases independent in principal mode
- Allow opening a first-class module or applying a generative functor
in the body of a generative functor. Allow it also in the body of
an applicative functor if no types are created
* Module aliases are now typed in a specific way, which remembers their
identity. In particular this changes the signature inferred by
"module type of"
- Slight change in the criterion to distinguish private
abbreviations and private row types: create a private abbreviation for
closed objects and fixed polymorphic variants.
* Compare first class module types structurally rather than
nominally. Value subtyping allows module subtyping as long as the internal
representation is unchanged.
Compilers:
- More aggressive constant propagation, including float and
int32/int64/nativeint arithmetic. Constant propagation for floats
can be turned off with option -no-float-const-prop, for codes that
change FP rounding modes at run-time.
- New back-end optimization pass: common subexpression elimination (CSE).
(Reuses results of previous computations instead of recomputing them.)
- New back-end optimization pass: dead code elimination.
(Removes arithmetic and load instructions whose results are unused.)
- Optimization of sequences of string patterns
- Experimental native code generator for AArch64 (ARM 64 bits)
- Optimization of integer division and modulus by constant divisors
- Add "-open" command line flag for opening a single module before typing
* "-o" now sets module name to the output file name up to the first "."
(it also applies when "-o" is not given, i.e. the module name is then
the input file name up to the first ".")
* better sharing of structured constants
- new flag to keep locations in cmi files
- issue warning 3 when referring to a value marked with
the [@@ocaml.deprecated] attribute
- a new format implementation based on GADTs
* Constant exception constructors no longer allocate
- avoid unnecessary boxing in let
- Better compilation of optional arguments with default values
- ocamlopt -opaque option for incremental native compilation
Toplevel interactive system:
- New "#show_*" directives
Runtime system:
- New configure option "-no-naked-pointers" to improve performance by
avoiding page table tests during block darkening and the marking phase
of the major GC. In this mode, all out-of-heap pointers must point at
things that look like OCaml values: in particular they must have a valid
header. The colour of said headers should be black.
- Fixed bug in native code version of [caml_raise_with_string] that could
potentially lead to heap corruption.
- Blocks initialized by [CAMLlocal*] and [caml_alloc] are now filled with
[Val_unit] rather than zero.
- Fixed a major performance problem on large heaps (~1GB) by making heap
increments proportional to heap size by default
- Structural equality treats exception specifically
- efficient comparison/indexing of exceptions
- avoid using unsafe C library functions (strcpy, strcat, sprintf)
- An ISO C99-compliant C compiler and standard library is now assumed.
(Plus special exceptions for MSVC.) In particular, emulation code for
64-bit integer arithmetic was removed, the C compiler must support a
64-bit integer type.
Standard library:
* Add new modules Bytes and BytesLabels for mutable byte sequences.
- add List.sort_uniq and Set.of_list
- a faster version of "raise" which does not maintain the backtrace
- support "Unix.kill pid Sys.sigkill" under Windows
- speed improvement for Buffer
- efficient creation of uninitialized float arrays
- Improve documentation regarding finalisers and multithreading
- Trigger warning 3 for all values marked as deprecated in the documentation.
bugfixes, include:
- Labltk: updated to Tcl/Tk 8.6.
Type system:
- use well-disciplined type information propagation to
disambiguate label and constructor names
* Propagate type information towards pattern-matching, even in the presence of
polymorphic variants (discarding only information about possibly-present
constructors). As a result, matching against absent constructors is no longer
allowed for exact and fixed polymorphic variant types.
* Reject multiple declarations of the same method or instance variable
in an object
- raise an error when multiple private keywords are used in type
declarations
- parsetree rewriter (-ppx flag)
- ocamldep now supports -absname
- On "unbound identifier" errors, use spell-checking to suggest names
present in the environment
- ocamlc has a new option -dsource to visualize the parsetree
- tools/eqparsetree compares two parsetree ignoring location
- ocamlopt now uses clang as assembler on OS X if available, which enables
CFI support for OS X.
- Added a new -short-paths option, which attempts to use the shortest
representation for type constructors inside types, taking open modules
into account. This can make types much more readable if your code
uses lots of functors.
- added flag -compat-32 to ocamlc, ensuring that the generated
bytecode executable can be loaded on 32-bit hosts.
- warning on open statements which shadow an existing
identifier (if it is actually used in the scope of the open); new
open! syntax to silence it locally
* warning 3 is extended to warn about other deprecated features:
- ISO-latin1 characters in identifiers
- uses of the (&) and (or) operators instead of (&&) and (||)
- Experimental OCAMLPARAM for ocamlc and ocamlopt
- incorrect ordinal number in error message
- add signature to Tstr_include
- expose a way to inspect the current call stack,
Printexc.get_callstack
- new flag Marshal.Compat_32 for the serialization functions
(Marshal.to_*), forcing the output to be readable on 32-bit hosts.
- infix application operators |> and @@ in Pervasives
- add O_CLOEXEC flag to Unix.openfile, so that the returned
file descriptor is created in close-on-exec mode
* more efficient implementation of caml_modify() and caml_initialize().
The new implementations are less lenient than the old ones: now,
the destination pointer of caml_modify() must point within the minor or
major heaps, and the destination pointer of caml_initialize() must
point within the major heap.
- Moved debugger/envaux.ml to typing/envaux.ml to publish env_of_only_summary
as part of compilerlibs, to be used on bin-annot files.
- The test suite can now be run without installing OCaml first.
isn't needed any longer and breaks some compilations. Also, changed some
patches to use the correct BSD_INSTALL variables for shared libraries, and
after discussion with adam@, I am taking over maintainership of this
package.
comments.
Updated buildlink3.mk to default to a full dependency (more pertinent in most
cases; usually the standard library needs to be installed for an ocaml
program to run)
Changes from 3.12 to 4.00.1 include:
OCaml 4.00.1:
-------------
Various bug fixes.
OCaml 4.00.0:
-------------
(Changes that can break existing programs are marked with a "*")
- The official name of the language is now OCaml.
Language features:
- Added Generalized Algebraic Data Types (GADTs) to the language.
See chapter "Language extensions" of the reference manual for documentation.
- It is now possible to omit type annotations when packing and unpacking
first-class modules. The type-checker attempts to infer it from the context.
Using the -principal option guarantees forward compatibility.
- New (module M) and (module M : S) syntax in patterns, for immediate
unpacking of a first-class module.
Compilers:
- Revised simplification of let-alias (PR#5205, PR#5288)
- Better reporting of compiler version mismatch in .cmi files
* Warning 28 is now enabled by default.
- New option -absname to use absolute paths in error messages
- Optimize away compile-time beta-redexes, e.g. (fun x y -> e) a b.
- Added option -bin-annot to dump the AST with type annotations.
- Added lots of new warnings about unused variables, opens, fields,
constructors, etc.
* New meaning for warning 7: it is now triggered when a method is overridden
with the "method" keyword. Use "method!" to avoid the warning.
Native-code compiler:
- Optimized handling of partially-applied functions (PR#5287)
- Small improvements in code generated for array bounds checks (PR#5345,
PR#5360).
* New ARM backend (PR#5433):
. Supports both Linux/EABI (armel) and Linux/EABI+VFPv3 (armhf).
. Added support for the Thumb-2 instruction set with average code size
savings of 28%.
. Added support for position-independent code, natdynlink, profiling and
exception backtraces.
- Generation of CFI information, and filename/line number debugging (with -g)
annotations, enabling in particular precise stack backtraces with
the gdb debugger. Currently supported for x86 32-bits and 64-bits only.
(PR#5487)
- New tool: ocamloptp, the equivalent of ocamlcp for the native-code compiler.
OCamldoc:
- PR#5645: ocamldoc doesn't handle module/type substitution in signatures
- PR#5544: improve HTML output (less formatting in html code)
- PR#5522: allow refering to record fields and variant constructors
- fix PR#5419 (error message in french)
- fix PR#5535 (no cross ref to class after dump+load)
* Use first class modules for custom generators, to be able to
load various plugins incrementally adding features to the current
generator
* PR#5507: Use Location.t structures for locations.
- fix: do not keep code when not told to keep code.
Standard library:
- Added float functions "hypot" and "copysign" (PR#3806, PR#4752, PR#5246)
* Arg: options with empty doc strings are no longer included in the usage string
(PR#5437)
- Array: faster implementations of "blit", "copy", "sub", "append" and "concat"
(PR#2395, PR#2787, PR#4591)
* Hashtbl:
. Statistically-better generic hash function based on Murmur 3 (PR#5225)
. Fixed behavior of generic hash function w.r.t. -0.0 and NaN (PR#5222)
. Added optional "random" parameter to Hashtbl.create to randomize
collision patterns and improve security (PR#5572, CVE-2012-0839)
. Added "randomize" function and "R" parameter to OCAMLRUNPARAM
to turn randomization on by default (PR#5572, CVE-2012-0839)
. Added new functorial interface "MakeSeeded" to support randomization
with user-provided seeded hash functions.
. Install new header <caml/hash.h> for C code.
- Filename: on-demand (lazy) initialization of the PRNG used by "temp_file".
- Marshal: marshalling of function values (flag Marshal.Closures) now
also works for functions that come from dynamically-loaded modules (PR#5215)
- Random:
. More random initialization (Random.self_init()), using /dev/urandom
when available (e.g. Linux, FreeBSD, MacOS X, Solaris)
* Faster implementation of Random.float (changes the generated sequences)
- Scanf: new function "unescaped" (PR#3888)
- Set and Map: more efficient implementation of "filter" and "partition"
- String: new function "map" (PR#3888)
Installation procedure:
- Compiler internals are now installed in `ocamlc -where`/compiler-libs.
The files available there include the .cmi interfaces for all compiler
modules, plus the following libraries:
ocamlcommon.cma/.cmxa modules common to ocamlc, ocamlopt, ocaml
ocamlbytecomp.cma/.cmxa modules for ocamlc and ocaml
ocamloptcomp.cma/.cmxa modules specific to ocamlopt
camltoplevel.cma modules specific to ocaml
(PR#1804, PR#4653, frequently-asked feature).
* Some .cmi for toplevel internals that used to be installed in
`ocamlc -where` are now to be found in `ocamlc -where`/compiler-libs.
Add "-I +compiler-libs" where needed.
* toplevellib.cma is no longer installed because subsumed by
ocamlcommon.cma ocamlbytecomp.cma ocamltoplevel.cma
- Added a configuration option (-with-debug-runtime) to compile and install
a debug version of the runtime system, and a compiler option
(-runtime-variant) to select the debug runtime.
and various bug fixes.
Changes in Objective Caml 3.12.1:
Features:
- added '-ml-synonym' and '-mli-synonym' options to ocamldep
- added '-ocamldoc' option to ocamlbuild
- added possibility to add options to ocamlbuild
- added access to current camlp4 parsers and printers
- improved instruction selection for float operations on amd64
- stdlib: added a 'usage_string' function to Arg
- allow with constraints to add a type equation to a datatype definition
- ocamldoc: allow to merge '@before' tags like other ones
- ocamlbuild: allow dependency on file "_oasis"
Other changes:
- Changed default minor heap size from 32k to 256k words.
- Added new operation 'compare_ext' to custom blocks, called when
comparing a custom block value with an unboxed integer.
Multiple bug fixes.
move PKGREVISION to each Makefile including the Makefile.common for
keep version number, and bump again for ocaml-graphics because the
previous bump resuited in downgrade.
Bump pkgrevision.
While I'm here: add a comment to patch-at explaining what it does.
Tested by
$ make install
$ cd work/ocaml-3.12.0/testsuite && gmake one DIR=tests/lib-dynlink-native
(Not in a build-env because that uses the wrappers, which don't let the
test suite see the installed OCaml files.)
This is only a workaround on NetBSD/{i386,amd64} for the problems of
OCaml PR#5049 <http://caml.inria.fr/mantis/view.php?id=5049>. (E.g.,
this workaround makes Coccinelle build on those platforms -- but it
still won't build on platforms with native compilation but no native
dynamic loading. Need to hack everything that uses dynlink to have
four compile-time cases -- {yes,no} {byte,nat}dynlink.)
- to do this, and make the result runnable on pre-thumb arm, change
upstreams assembler snippets and stubs to use "mov pc,reg" instead
of the return/call-to-thumb-friendly "bx reg", which is not available
in non-thumb-enabled arm CPUs. Whether this is the way to go, or a
seperate "armt" architecture for ocaml is needed, needs to be discussed
with upstream.
Resulting compiler, when running its selftest suite, has 6 errors less than
the same on i386. Unison compiled natively with this passes its self-test.
natively (that is, only to byte-code).
This consists of two parts:
a) a patch to ocamldoc/Makefile to make it create the man pages using
the interpreted ocamldoc - this exists for both types of architectures,
so is safe. (This will be sent up-stream).
b) move a common shared library file to the common PLIST, and a lot of
files (natively compiled versions of the ML modules and natively compiled
versions of a few binaries) to PLIST.opt.
This has been build-tested on i386 (cross-compiled from amd64) and on
arm. unison builds and works.
"make test" shows the same amount of passed and failed tests (mostly
non-found libraries) as before; but this needs more investigation.
An additional issue to solve (with upstream) is that there's no easy way
to run the part of the test suite that would work on byte-code-only
architectures.
Some of the highlights in release 3.12 are:
* Polymorphic recursion is supported, using explicit type
declarations on the recursively-defined identifiers.
* First-class modules: module expressions can be embedded as
values of the core language, then manipulated like any other
first-class value, then projected back to the module level.
* New operator to modify a signature a posteriori: S with type
t := tau denotes signature S where the t type component is
removed and substituted by the type tau elsewhere.
* New notations for record expressions and record patterns:
{ lbl } as shorthand for { lbl = lbl }, and { ...; _ } marks
record patterns where some labels were intentionally omitted.
* Local open let open ... in ... now supported by popular demand.
* Type variables can be bound as type parameters to functions;
such types are treated like abstract types within the
function body, and like type variables (possibly generalized)
outside.
* The module type of construct enables to recover the module
type of a given module.
* Explicit method override using the method! keyword, with
associated warnings and errors.
Changelog:
Bug fixes:
- PR#4151: better documentation for min and max w.r.t. NaN
- PR#4421: ocamlbuild uses wrong compiler for C files
- PR#4710, PR#4720: ocamlbuild does not use properly configuration information
- PR#4750: under some Windows installations, high start-up times for Unix lib
- PR#4777: problem with scanf and CRLF
- PR#4783: ocamlmklib problem under Windows
- PR#4810: BSD problem with socket addresses, e.g. in Unix.getnameinfo
- PR#4813: issue with parsing of float literals by the GNU assembler
- PR#4816: problem with modules and private types
- PR#4818: missed opportunity for type-based optimization of bigarray accesses
- PR#4821: check for duplicate method names in classes
- PR#4823: build problem on Mac OS X
- PR#4836: spurious errors raised by Unix.single_write under Windows
- PR#4841, PR#4860, PR#4930: problem with ocamlopt -output-obj under Mac OS X
- PR#4847: C compiler error with ocamlc -output-obj under Win64
- PR#4856: ocamlbuild uses ocamlrun to execute a native plugin
- PR#4867, PR#4760: ocamlopt -shared fails on Mac OS X 64bit
- PR#4873: ocamlbuild ignores "thread" tag when building a custom toplevel
- PR#4890: ocamlbuild tries to use native plugin on bytecode-only arch
- PR#4896: ocamlbuild should always pass -I to tools for external libraries
- PR#4900: small bug triggering automatic compaction even if max_overhead = 1M
- PR#4902: bug in %.0F printf format
- PR#4910: problem with format concatenation
- PR#4922: ocamlbuild recompiles too many files
- PR#4923: missing \xff for scanf %S
- PR#4933: functors not handling private types correctly
- PR#4940: problem with end-of-line in DOS text mode, tentative fix
- PR#4953: problem compiling bytecode interpreter on ARM in Thumb mode.
- PR#4955: compiler crash when typing recursive type expression with constraint
- Module Printf: the simple conversion %F (without width indication) was not
treated properly.
- Makefile: problem with cygwin, flexdll, and symbolic links
- Various build problems with ocamlbuild under Windows with msvc
Feature wishes:
- PR#9: (tentative implementation) make ocamldebug use #linenum annotations
- PR#123, PR#4477: custom exception printers
- PR#3456: Obj.double_field and Obj.set_double_field functions
- PR#4003: destination directory can be given to Filename.[open_]temp_file
- PR#4647: Buffer.blit function
- PR#4685: access to Filename.dir_sep
- PR#4703: support for debugging embedded applications
- PR#4723: "clear_rules" function to empty the set of ocamlbuild rules
- PR#4921: configure option to help cross-compilers
(Changes that can break existing programs are marked with a "*" )
Language features:
- Addition of lazy patterns: "lazy <pat>" matches suspensions whose values,
after forcing, match the pattern <pat>.
- Introduction of private abbreviation types "type t = private <type-expr>",
for abstracting the actual manifest type in type abbreviations.
- Subtyping is now allowed between a private abbreviation and its definition,
and between a polymorphic method and its monomorphic instance.
Compilers:
- The file name for a compilation unit should correspond to a valid
identifier (Otherwise dynamic linking and other things can fail, and
a warning is emitted.)
* Revised -output-obj: the output name must now be provided; its
extension must be one of .o/.obj, .so/.dll, or .c for the
bytecode compiler. The compilers can now produce a shared library
(with all the needed -ccopts/-ccobjs options) directly.
- -dtypes renamed to -annot, records (in .annot files) which function calls
are tail calls.
- All compiler error messages now include a file name and location, for
better interaction with Emacs' compilation mode.
- Optimized compilation of "lazy e" when the argument "e" is
already evaluated.
- Optimized compilation of equality tests with a variant constant constructor.
- The -dllib options recorded in libraries are no longer ignored when
-use_runtime or -use_prims is used (unless -no_auto_link is
explicitly used).
- Check that at most one of -pack, -a, -shared, -c, -output-obj is
given on the command line.
- Optimized compilation of private types as regular manifest types
(e.g. abbreviation to float, float array or record types with only
float fields).
Native-code compiler:
- New port: Mac OS X / Intel in 64-bit mode (configure with -cc "gcc -m64").
- A new option "-shared" to produce a plugin that can be dynamically
loaded with the native version of Dynlink.
- A new option "-nodynlink" to enable optimizations valid only for code
that is never dynlinked (no-op except for AMD64).
- More aggressive unboxing of floats and boxed integers.
- Can select which assembler and asm options to use at configuration time.
Run-time system:
- New implementation of the page table describing the heap (two-level
array in 32 bits, sparse hashtable in 64 bits), fixes issues with address
space randomization on 64-bit OS (PR#4448).
- New "generational" API for registering global memory roots with the GC,
enables faster scanning of global roots.
(The functions are caml_*_generational_global_root in <caml/memory.h>.)
- New function "caml_raise_with_args" to raise an exception with several
arguments from C.
- Changes in implementation of dynamic linking of C code:
under Win32, use Alain Frisch's flexdll implementation of the dlopen
API; under MacOSX, use dlopen API instead of MacOSX bundle API.
- Programs may now choose a first-fit allocation policy instead of
the default next-fit. First-fit reduces fragmentation but is
slightly slower in some cases.
Standard library:
- Parsing library: new function "set_trace" to programmatically turn
on or off the printing of a trace during parsing.
- Printexc library: new functions "print_backtrace" and "get_backtrace"
to obtain a stack backtrace of the most recently raised exception.
New function "record_backtrace" to turn the exception backtrace mechanism
on or off from within a program.
- Scanf library: fine-tuning of meta format implementation;
fscanf behaviour revisited: only one input buffer is allocated for any
given input channel;
the %n conversion does not count a lookahead character as read.
Other libraries:
- Dynlink: on some platforms, the Dynlink library is now available in
native code. The boolean Dynlink.is_native allows the program to
know whether it has been compiled in bytecode or in native code.
- Bigarrays: added "unsafe_get" and "unsafe_set"
(non-bound-checking versions of "get" and "set").
- Bigarrays: removed limitation "array dimension < 2^31".
- Labltk: added support for TK 8.5.
- Num: added conversions between big_int and int32, nativeint, int64.
More efficient implementation of Num.quo_num and Num.mod_num.
- Threads: improved efficiency of mutex and condition variable operations;
improved interaction with Unix.fork (PR#4577).
- Unix: added getsockopt_error returning type Unix.error.
Added support for TCP_NODELAY and IPV6_ONLY socket options.
- Win32 Unix: "select" now supports all kinds of file descriptors.
Improved emulation of "lockf" (PR#4609).
Tools:
- ocamldebug now supported under Windows (MSVC and Mingw ports),
but without the replay feature. (Contributed by Dmitry Bely
and Sylvain Le Gall at OCamlCore with support from Lexifi.)
- ocamldoc: new option -no-module-constraint-filter to include functions
hidden by signature constraint in documentation.
- ocamlmklib and ocamldep.opt now available under Windows ports.
- ocamlmklib no longer supports the -implib option.
- ocamlnat: an experimental native toplevel (not built by default).
Camlp4:
* programs linked with camlp4lib.cma now also need dynlink.cma.
Objective Caml 3.10.2:
----------------------
Bug fixes:
- PR#1217 (partial) Typo in ocamldep man page
- PR#3952 (partial) ocamlopt: allocation problems on ARM
- PR#4339 (continued) ocamlopt: problems on HPPA
- PR#4455 str.mli not installed under Windows
- PR#4473 crash when accessing float array with polymorphic method
- PR#4480 runtime would not compile without gcc extensions
- PR#4481 wrong typing of exceptions with object arguments
- PR#4490 typo in error message
- Random crash on 32-bit when major_heap_increment >= 2^22
- Big performance bug in Weak hashtables
- Small bugs in the make-package-macosx script
- Bug in typing of polymorphic variants (reported on caml-list)
* Bug fixes
* New features:
- made configure script work on PlayStation 3
- ARM port: brought up-to-date for Debian 4.0 (Etch)
- many other small changes and bugfixes in camlp4, ocamlbuild, labltk,
emacs files
- New language features
- New tools
- Faster type-checking of functor applications.
- Referencing an interface compiled with -rectypes from a module
not compiled with -rectypes is now an error.
- Revised the "fragile matching" warning.
- Print a stack backtrace on an uncaught exception.
- Stack overflow detection on MS Windows 32 bits.
- Stack overflow detection on MacOS X PPC and Intel.
- Intel/AMD 64 bits: generate position-independent code by default.
- Fixed bug involving -for-pack and missing .cmx files.
- Fixed bug causing duplication of literals.
- C/Caml interface functions take "char const *" arguments
instead of "char *" when appropriate.
- Faster string comparisons (fast case if strings are ==).
- Other
Bug fixes:
- ocamldoc: -using modtype constraint to filter module elements displayed in doc
- ocamldoc: error in merging of top dependencies of modules
- ocamldoc: -dot-colors has no effect
- ocamdloc: missing crossref in text from intro files
- compilers: segfault with recursive modules
- compilers: infinite loop when compiling objects
- compilers: bad error message when signature mismatch
- compilers: infinite loop with -rectypes
- compilers: contravariance bug in private rows
- compilers: unsafe cast with polymorphic exception
- native compiler: bad assembly code generated for AMD64
- native compiler: stack alignment problems on MacOSX/i386
- stdlib: crash in marshalling
- stdlib: crash when closing a channel twice
- stdlib: memory leak in Sys.readdir
- C interface: better definition of CAMLreturn
- otherlibs/unix: crash in gethostbyname
- tools: subtle problem with unset in makefile
- camlp4: install pa_o_fast.o
- camlp4: install more modules
New features:
- ocamldoc: name resolution in cross-referencing {!name}: if name is not
found, then it is searched in the parent module/class, and in the parent
of the parent, and so on until it is found.
- ocamldoc: new option -short-functors to use a short form to display
functors in html generator
- ocamlprof: added "-version" option
Changes from 3.09.1:
----
Bug fixes:
- Makefile: problem with "make world.opt"
- compilers: problem compiling several modules with one command line
- compilers,ocamldoc: error message that Emacs cannot parse
- compilers: crash when printing type error
- compilers: -dtypes wrong for monomorphic type variables
- compilers: wrong warning on optional arguments
- compilers: crash when wrong use of type constructor in let rec
- compilers: better wording of "statement never returns" warning
- runtime: inefficiency of signal handling
- runtime: crashes with I/O in multithread programs
- camlp4: empty file name in error messages
- camlp4: stack overflow
- otherlibs/labltk: ocamlbrowser ignores its command line options
- otherlibs/unix: Unix.times wrong under Mac OS X
- otherlibs/unix: wrong doc for execvp and execvpe
- otherlibs/win32unix: random crash in Unix.stat
- stdlib: update_mod not found under Windows
- stdlib: Filename.dirname/basename wrong on Win32
- stdlib: incomplete documentation of Pervasives.abs
- stdlib: Printf bugs
- tools/checkstack.c missing include
- yacc: crash when given argument "-"
New features:
- ported to MacOS X on Intel
- configure: added support for GNU Hurd
* Bug fixes
* New features:
- otherlibs/labltk: browser uses menu bars instead of menu buttons
Changes 3.09.0:
Language features:
- Introduction of private row types, for abstracting the row in object
and variant types.
Type checking:
- Polymorphic variants with at most one constructor [< `A of t] are no
longer systematically promoted to the exact type [`A of t]. This was
more confusing than useful, and created problems with private row
types.
Native-code compiler (ocamlopt):
* Revised implementation of the -pack option (packing of several compilation
units into one). The .cmx files that are to be packed with
"ocamlopt -pack -o P.cmx" must be compiled with "ocamlopt -for-pack P".
In exchange for this additional constraint, ocamlopt -pack is now
available on all platforms (no need for binutils).
* Fixed wrong evaluation order for arguments to certain inlined functions.
* Other (see 'Changes')
New features:
- support for ocamlopt -pack under Mac OS X (PR#2634, PR#3320)
- ignore unknown warning options for forward and backward compatibility
- runtime: export caml_compare_unordered (PR#3479)
- camlp4: install argl.* files (PR#3439)
- ocamldoc: add -man-section option
- labltk: add the "solid" relief option (PR#3343)
- compiler: ocamlc -i now prints variance annotations
Bug fixes:
- typing: fix unsoundness in type declaration variance inference.
Type parameters which are constrained must now have an explicit variant
annotation, otherwise they are invariant. This is not backward
compatible, so this might break code which either uses subtyping or
uses the relaxed value restriction (i.e. was not typable before 3.07)
- typing: erroneous partial match warning for polymorphic variants (PR#3424)
- runtime: handle the case of an empty command line (PR#3409, PR#3444)
- stdlib: make Sys.executable_name an absolute path in native code (PR#3303)
- runtime: fix memory leak in finalise.c
- runtime: auto-trigger compaction even if gc is called manually (PR#3392)
- stdlib: fix segfault in Obj.dup on zero-sized values (PR#3406)
- camlp4: correct parsing of the $ identifier (PR#3310, PR#3469)
- windows (MS tools): use link /lib instead of lib (PR#3333)
- windows (MS tools): change default install destination
- autoconf: better checking of SSE2 instructions (PR#3329, PR#3330)
- graphics: make close_graph close the X display as well as the window (PR#3312)
- num: fix big_int_of_string (empty string) (PR#3483)
- num: fix big bug on 64-bit architecture (PR#3299)
- str: better documentation of string_match and string_partial_match (PR#3395)
- unix: fix file descriptor leak in Unix.accept (PR#3423)
- unix: miscellaneous clean-ups
- unix: fix documentation of Unix.tm (PR#3341)
- graphics: fix problem when allocating lots of images under Windows (PR#3433)
- compiler: fix error message with -pack when .cmi is missing (PR#3028)
- cygwin: fix problem with compilation of camlheader (PR#3485)
- stdlib: Filename.basename doesn't return an empty string any more (PR#3451)
- stdlib: better documentation of Open_excl flag (PR#3450)
- ocamlcp: accept -thread option (PR#3511)
- ocamldep: handle spaces in file names (PR#3370)
- compiler: remove spurious warning in pattern-matching on variants (PR#3424)
- windows: better handling of InterpreterPath registry entry (PR#3334, PR#3432)
the missing bits, namely labltk and ocaml-graphics, respectively. To
simplify this, add a Makefile.common. Bump PKGREVISION to 8.
Per discussion with wiz@ a while ago.
