Contributed by Peter Bex via IRC.
Changes in 4.6.0
- the licenses used in all components of the core system have
been collected in the LICENSE file (Thanks to Peter Bex)
- Added new compiler option `-no-module-registration' which
omits generation of module registration code, even when
generation of import libraries has not been enabled
- running `chicken' without arguments now hints at the
existence of `csi' and `csc'
- `caar', `cdar' and `cddr' generate faster code
- calls to `list', `vector' and the internal structure
allocation primitive that take 1 to 8 arguments generate
faster code
- `chicken-install' now checks the version of the setup
configuration file `setup.defaults'
- added option `-exact' to `chicken-status' and `chicken-uninstall',
which treats the pattern argument as the literal name of the
extension to be listed/deinstalled
- `assert' shows line-number information, if available
(suggested by Alejandro Forero Cuervo)
- interpreted code records the lexical-environment at call-
sites, which can in case of an error be inspected with the
new `,c', `,f' and `,g' csi toplevel commands
- the evaluation-result history in `csi' can be inspected and
cleared (to reduce memory load) with the toplevel commands
`,h' and `,ch'
- unit `data-structures': deprecated `left-section' and
`right-section'
- fixed bug that caused the static syntax-environment of
syntax exported by a module to be incomplete
- module `setup-api': Documented the `version>=?' and
`extension-name-and-version' proceedures
- unit `posix': `utc-time->seconds' is considerably
faster on Mac OS X (thanks to Jim Ursetto);
added new procedure `file-type'
- the `time' macro now shows the correct number of minor
garbage collections
- the immediate-object check inside the marking procedure
of the garbage collector has been manually inlined which
results in a significant GC speedup, depending on memory
load
- unit `srfi-18' and `scheduler': various bugfixes (thanks
to Joerg Wittenberger)
- unit `srfi-4': bugfix in 8-bit vector allocation routines
(thanks to Kon Lovett)
- added `-:H' runtime option to dump heap state on exit
- fixed missing change in Makefile.cygwin (thanks to John Cowan)
- fixed bug in `let-optionals' macro that caused problems when the
rest-variable was actually named `rest' (thanks to Alejandro
Forero Cuervo)
- when Scheme files are translated to C++ or Objective-C, `csc'
will register the feature-identifiers `chicken-scheme-to-c++'/
`chicken-scheme-to-objc' ar compile-time
- fixed bug in expansion of `#!key' parameters in lambda-lists
- debug-output for forcing finalizers on exit goes to stderr now
(thanks to Joerg Wittenberger)
- the installation routines for extensions automatically add
version-number information if none is given in the extension
property list (suggested by Alejandro Forero Cuervo)
- `standard-extension' accepts `#f' now for the version number
and will use the version that has been obtained via
`chicken-install'
- `fifo?', `symbolic-link?', `directory?', `regular-file?', `socket?',
`character-device?' and `block-device?' now accepts file-descriptors
or filenames
- `find-files' takes keyword arguments, now (including the options
to process dotfiles and ignore symbolic links); the old argument
signature is still supported but deprecated
- removed dependency on `symbol-append' in some macros used in
srfi-4.scm to be able to compile the system with older chickens
- fixed bug in script that generates development snapshot
- added build-variable `TARGET_FEATURES', which can be used to pass
extra options enabling or disabling fetures for a system configured
for cross-compilation
- added compiler and interpreter option `-no-feature FEATURENAME' that
disables predefined feature identifiers
- code compiled with interrupts disabled will not emit inline files
for global inlining since they may execute in a context where
interrupts are enabled
- the `setup.defaults' file that holds download sources for
`chicken-install' now allows aliases for locations
- CHICKEN systems build from cross-compilation now by default
transparently build and install extensions for both the host
and target parts of the cross-compilation setup; the options
`-host' and `-target' can now be used to selectively build
an extensions for the host- and the target system, respectively
- also added `-host' and `-target' options to `chicken-status' and
`chicken-uninstall'
- `chicken-install' now respects the `http_proxy' environment variable
(contributed by Stephen Eilert)
- the `srfi-4' library unit has been heavily cleaned up and optimized
- optimization-level 3 now enables global inlining
- fixed the case that declarations listing global identifiers did not
correctly rename them
- deprecated `-N' option shortcut for `-no-usual-integrations' option in
`csc'
- `csi' now offers a toplevel command `,e' for invoking an external
editor (suggested by Oivind Binde)
- the `describe' command in `csi' now detects many circular lists
(contributed by Christian Kellermann)
- `csi' doesn't depend on the `srfi-69' library unit anymore
- when a closing sequence delimiter is missing or incorrect, the
reader also reports the starting line of the sequence
- the reader signals an error when a file contains certain characters
that indicate that it is a binary file
- procedure-information shown by the printer for procedures is now
corrected for some library procedures that where missing the correct
information; `getter-with-setter' copies procedure-information objects
into the newly created accessor procedure, if available
- calls to some known pure standard- or extended procedures are removed, if
the procedures are called with side-effect free arguments and the
result is not used (this can also by enabled for user procedures with
the `constant' declaration)
- fixed some build-system bugs related to installation
- fixed a problem in the C runtime code that prevented it to be compileable
without a configuration header-file
- the makefile-target to build a bootstrapping `chicken' executable
performs multi-stage build now
- changed error message when required extension is out of date (thanks to
Mario Goulart)
- documented library units loaded by default in `csi' (thanks to Moritz
Heidkamp)
- added `boot-chicken' makefile target to simplify bootstrapping
the system from sources and documented this in the README
(suggested by Jim Ursetto)
- CHICKEN can now be built on haiku (contributed by Chris Roberts)
- on Solaris, the system can be compiled with the SunPro C compiler
(thanks to Semih Cemiloglu)
- removed the `-disable-warnings' compiler option and `disable-warnings'
declaration specifier
- `fx/' and `fxmod' generate now faster code in safe mode
- cleaned up manual pages
- slightly optimized variable- and procedure-access
- in the compiler `-debug-level 2' implies `-scrutinize'
- internal compiler-transformation for `for-each' and `map'
apply now with any expression as the procedure argument
- the compiler warns about non-intrinsic exported toplevel variables
which are declared to be safe
- `csc' didn't handle the `-verbose' option (thanks to Mario Goulart)
- the `,d' command in `csi' now detects circular lists (thanks to
Christian Kellermann)
- strings passed to C runtime functions and which are converted to
0-terminated C strings are now checked for not containing embedded
`\0' characters (thanks to Peter Bex)
- errors in user-defined record printers are caught and shown in the
output instead of throwing an error to avoid endless recursion when
an error message is printed
- a feature identifier named `chicken-MAJOR.MINOR' is now defined
to simplify conditionalization of code on the CHICKEN version
- `getter-with-setter' copies the lambda-information (if available) from
the getter to the generated procedure
- `time' uses a somewhat more concise output format and outputs timing
information to stderr instead of stdout
- added a new chapter on cross-development to the manual
- added the `safe-globals' declaration specifier
- split up manual chapter `Modules and macros' into two chapters
(named `Modules' and `Macros', respectively - suggested by
Mario Goulart)
- the last 5 non-precompiled regular expressions are now internally
cached in compiled form, which speeds up repeated matching of
the same uncompiled regular expression dramatically
- added the new procedure `yes-or-no?' to the `utils' library unit
- added a `bench' makefile target that runs some non-trivial
benchmark programs
- added `install-target' and `install-dev' makefile target for
installing only target system libraries in cross-mode and
development files (static libraries and headers)
- added `[-]no-procedure-checks-for-toplevel-bindings' compiler
option and declaration
- usage of unimported syntax in modules gives more usable
error messages; in particular, used but unimported FFI forms are
now detected
- invalid syntactic forms (mostly `()') encountered by the compiler
or interpreter show the contextual form containing the expression,
or, if indicated by the context warns about missing imports
- simplified manual pages of all core tools - they now refer to
the output shown by invoking `<tool> -help'
- added new option `-feature FEATURE' to `chicken-install' tool
to pass feature-identifiers to invocations of `csc'
- removed deprecated `-host-extension' option from `chicken-install'
- `chicken-status' in a system built for cross-compilation now
lists extensions installed in the target prefix, unless the
new `-host' option is given on the command line
- `chicken-uninstall' in a system built for cross-compilation now
removes extensions installed in the target prefix, unless the
new `-host' option is given on the command line
- added missing entry for `finite?' to the `chicken' module
exports
- added new procedure `port-closed?' to the `library' unit
(contributed by Peter Bex)
- added new procedure `symbol-append' to the library unit
- the compiler-option `-optimize-level 0' is equivalent to
`-no-compiler-syntax -no-usual-integrations`
- internal rewritings of `map' and `for-each' ensure correct
evaluation order of the arguments and does a better job
at detecting non-list arguments (thanks to Jim Ursetto)
- `void' now takes arbitrary arguments and ignores them
- deprecated `noop' (from the `data-structures' unit) which
is now replaced by `void'
- the `time' macro now performs a major garbage collection
before executing the contained expressions and writes
the timings in a more compact format to the port given
by `(current-error-port)' instead of the standard output
port
- definitions of the form `(define define ...)' and
`(define-syntax define-syntax ...)' now trigger an error,
as required by R5RS (thanks to Jeronimo Pellegrini and Alex
Shinn)
- deprecated `random-seed' from the `extras' unit, since it
is identical to `randomize'
- added new procedure `create-temporary-directory' to the
`files' unit
- deprecated the optional path separator argument to
`make-pathname'
- slightly improved the performance of keyword argument
processing
- removed the deprecated `canonical-path' and `current-environment'
procedures from the `posix' unit
- warnings that mostly refer to programming style issues are
now coined `notes' and are only shown in the interpreter
or when debug-mode is enabled or when scrutiny is enabled
when compiling
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