Guile NEWS --- history of user-visible changes.
-Copyright (C) 1996-2012 Free Software Foundation, Inc.
+Copyright (C) 1996-2013 Free Software Foundation, Inc.
See the end for copying conditions.
Please send Guile bug reports to bug-guile@gnu.org.
+Changes in 2.0.8 (since 2.0.7):
+
+* TODO
+
+Reorder points in order of importance and make comprehensible
+
+Assemble thanks
+
+file name docs
+
+gnulib version
+
+--language docs
+
+* Notable changes
+
+** New guile.m4.
+
+The `guile.m4' autoconf macros have been rewritten to use `guild' and
+`pkg-config' instead of the deprecated `guile-config' (which itself
+calls pkg-config).
+
+There is also a new macro, `GUILE_PKG', which allows packages to select
+the version of Guile that they want to compile against. See "Autoconf
+Macros" in the manual, for more information.
+
+** Better Windows support.
+
+Guile now correctly identifies absolute paths on Windows (MinGW), and
+creates files on that platform according to its path conventions. See
+XXX in the manual, for all details.
+
+In addition, the new Gnulib imports provide `select' and `poll' on
+Windows builds.
+
+As an incompatible change, systems that are missing <sys/select.h> were
+previously provided a public `scm_std_select' C function that defined a
+version of `select', but unhappily it also provided its own incompatible
+definitions for FD_SET, FD_ZERO, and other system interface. Guile
+should not be setting these macros in public API, so this interface was
+removed on those plaforms (basically only MinGW).
+
+** Gnulib update.
+
+Guile's copy of Gnulib was updated to XXX. The following modules were
+imported from Gnulib: select, times, pipe-posix, fstat, getlogin, and
+poll.
+
+** New optimizations.
+
+There were a number of improvements to the partial evaluator, allowing
+complete reduction of forms such as:
+
+ ((let ((_ 10)) (lambda () _)))
+
+ ((lambda _ _))
+
+ (apply (lambda _) 1 2 3 4)
+
+ (call-with-values (lambda () (values 1 2)) (lambda _ _))
+
+A number (ahem) of numeric operations on have been made faster, among
+them GCD and logarithms.
+
+Finally, `array-ref' and `array-set!' on arrays of rank 1 or 2 is now
+faster, because it avoids building a rest list.
+
+** `include' resolves relative file names relative to including file.
+
+Given a relative file name, `include' will look for it relative to the
+directory of the including file. This harmonizes the behavior of
+`include' with that of `load'.
+
+** SLIB compatibility restored.
+
+Guile 2.0.8 is now compatible with SLIB. You will have to use a
+development version of SLIB, however, until a new version of SLIB is
+released.
+
+** Better ,trace REPL command.
+
+Sometimes the ,trace output for nested function calls could overflow the
+terminal width, which wasn't useful. Now there is a limit to the amount
+of space the prefix will take. See the documentation for ",trace" for
+more information.
+
+** Update predefined character sets to Unicode 6.2.
+
+* Manual updates
+
+** Better SXML documentation.
+
+The documentation for SXML modules was much improved, though there is
+still far to go. See "SXML" in manual.
+
+** Style updates.
+
+Use of "iff" was replaced with standard English. Keyword arguments are
+now documented consistently, along with their default values.
+
+** An end to the generated-documentation experiment.
+
+When Guile 2.0 imported some modules from Guile-Lib, they came with a
+system that generated documentation from docstrings and module
+commentaries. This produced terrible documentation. We finally bit the
+bullet and incorporated these modules into the main text, and will be
+improving them manually over time, as is the case with SXML. Help is
+appreciated.
+
+** New documentation.
+
+There is now documentation for `scm_array_type', and `scm_array_ref', as
+well as for the new `array-length' / 'scm_c_array_length' /
+`scm_array_length' functions. `array-in-bounds?' has better
+documentation as well. The `program-arguments-alist' and
+`program-lambda-list' functions are now documented. Finally, the GOOPS
+class hierarchy diagram has been regenerated for the web and print
+output formats.
+
+* New deprecations
+
+** Deprecate generalized vector interface.
+
+The generalized vector interface, introduced in 1.8.0, is simply a
+redundant, verbose interface to arrays of rank 1. `array-ref' and
+similar functions are entirely sufficient. Thus,
+`scm_generalized_vector_p', `scm_generalized_vector_length',
+`scm_generalized_vector_ref', `scm_generalized_vector_set_x', and
+`scm_generalized_vector_to_list' are now deprecated.
+
+** Deprecate SCM_CHAR_CODE_LIMIT and char-code-limit.
+
+These constants were defined to 256, which is not the highest codepoint
+supported by Guile. Given that they were useless and incorrect, they
+have been deprecated.
+
+** Deprecate `http-get*'.
+
+The new `#:streaming?' argument to `http-get' subsumes the functionality
+of `http-get*' (introduced in 2.0.7). Also, the `#:extra-headers'
+argument is deprecated in favor of `#:headers'.
+
+** Deprecate (ice-9 mapping).
+
+This module, present in Guile since 1996 but never used or documented,
+has never worked in Guile 2.0. It has now been deprecated and will be
+removed in Guile 2.2.
+
+* New interfaces
+
+** `round-ash', a bit-shifting operator that rounds on right-shift.
+
+See "Bitwise Operations".
+
+** New environment variables: `GUILE_STACK_SIZE', `GUILE_INSTALL_LOCALE'.
+
+See "Environment Variables".
+
+** New procedure `sendfile'.
+
+See "File System".
+
+** New procedures for dealing with file names.
+
+See XXX for documentation on `system-file-name-convention',
+`file-name-separator?', `absolute-file-name?', and
+`file-name-separator-string'.
+
+** `array-length', an array's first dimension.
+
+See "Array Procedures".
+
+** `hash-count', for hash tables.
+
+See "Hash Tables".
+
+** New foreign types: `ssize_t', `ptrdiff_t'.
+
+See "Foreign Types".
+
+** New C helpers: `scm_from_ptrdiff_t', `scm_to_ptrdiff_t'.
+
+See "Integers".
+
+** Much more capable `xml->sxml'
+
+See "Reading and Writing XML" for information on how the `xml->sxml'
+parser deals with namespaces, processed entities, doctypes, and literal
+strings. Incidentally, `current-ssax-error-port' is now a parameter
+object.
+
+** New command-line argument: `--language'
+
+See XXX in the manual.
+
+** `current-language' in default environment.
+
+Previously defined only in `(system base language)', `current-language'
+is now defined in the default environment, and is used to determine the
+language for the REPL, and for `compile-and-load'.
+
+** New procedure: `fluid->parameter'
+
+See "Parameters", for information on how to convert a fluid to a
+parameter.
+
+** New procedures to read all characters from a port
+
+See "Line/Delimited" in the manual for documentation on `read-string'
+ and `read-string!'.
+
+** New HTTP client procedures.
+
+See "Web Client" for documentation on the new `http-head', `http-post',
+`http-put', `http-delete', `http-trace', and `http-options' procedures,
+and also for more options to `http-get'.
+
+** New procedures for converting strings to and from bytevectors.
+
+See "Representing Strings as Bytes" for documention on the new `(ice-9
+iconv)' module and its `bytevector->string' and `string->bytevector'
+procedures.
+
+** New `print' REPL option.
+
+See "REPL Commands" in the manual for information on the new
+user-customizable REPL printer.
+
+** New variable: %site-ccache-dir.
+
+The "Installing Site Packages" and "Build Config" manual sections now
+refer to this variable to describe where users should install their
+`.go' files.
+
+* Build fixes
+
+** Fix compilation against libgc 7.3.
+** Fix cross-compilation of `c-tokenize.o'.
+** Fix warning when compiling against glibc 2.17.
+** Fix documentation build against Texinfo 5.0.
+** Fix building Guile from a directory with non-ASCII characters.
+** Fix native MinGW build.
+** Fix --disable-posix build.
+** Fix MinGW builds with networking, POSIX, and thread support.
+
+* Bug fixes
+
+** SRFI-37: Fix infinite loop when parsing optional-argument short options
+ (http://bugs.gnu.org/13176)
+** web: Support non-GMT date headers in the HTTP client
+ (http://bugs.gnu.org/13544)
+** Avoid stack overflows with `par-map' and nested futures in general
+ (http://bugs.gnu.org/13188)
+** A fork when multiple threads are running will now print a warning.
+** Allow for spurious wakeups from pthread_cond_wait.
+ (http://bugs.gnu.org/10641)
+** Warn and ignore module autoload failures.
+ (http://bugs.gnu.org/12202)
+** Use chmod portably in (system base compile).
+ (http://bugs.gnu.org/10474)
+** Fix response-body-port for responses without content-length.
+ (http://bugs.gnu.org/13857)
+** Allow case-lambda expressions with no clauses.
+ (http://bugs.gnu.org/9776)
+** Improve standards conformance of string->number.
+ (http://bugs.gnu.org/11887)
+** Support calls and tail-calls with more than 255 formals.
+** ,option evaluates its right-hand-side.
+ (http://bugs.gnu.org/13076)
+** Structs with tail arrays are not simple.
+ (http://bugs.gnu.org/12808)
+** Make `SCM_LONG_BIT' usable in preprocessor conditionals.
+ (http://bugs.gnu.org/13848)
+** Fix thread-unsafe lazy initializations.
+** Allow SMOB mark procedures to be called from parallel markers.
+ (http://bugs.gnu.org/13611)
+** Fix later-bindings-win logic in with-fluids.
+ (http://bugs.gnu.org/13843)
+** Fix duplicate removal of with-fluids.
+ (http://bugs.gnu.org/13838)
+** Support calling foreign functions of 10 arguments or more.
+ (http://bugs.gnu.org/13809)
+** Let reverse! accept arbitrary types as second argument.
+ (http://bugs.gnu.org/13835)
+** Recognize the `x86_64.*-gnux32' triplet.
+** Check whether a triplet's OS part specifies an ABI.
+** Recognize mips64* as having 32-bit pointers by default.
+** Remove language/glil/decompile-assembly.scm.
+ (http://bugs.gnu.org/10622)
+** Use O_BINARY in `copy-file', `load-objcode', `mkstemp'.
+** Fix compilation of functions with more than 255 local variables.
+** Fix `getgroups' for when zero supplementary group IDs exist.
+** Allow (define-macro name (lambda ...)).
+** Various fixes to the (texinfo) modules.
+** guild: Gracefully handle failures to install the locale.
+** Fix format string warnings for ~!, ~|, ~/, ~q, ~Q, and ~^.
+ (http://bugs.gnu.org/13485)
+** Fix source annotation bug in psyntax 'expand-body'.
+** Ecmascript: Fix conversion to boolean for non-numbers.
+** A failure to find a module's file does not prevent future loading.
+** Many (oop goops save) fixes.
+** `http-get': don't shutdown write end of socket.
+ (http://bugs.gnu.org/13095)
+** Avoid signed integer overflow in scm_product.
+** http: read-response-body always returns bytevector or #f (not EOF in one case).
+** web: Correctly detect "No route to host" conditions.
+** `system*': failure to execvp no longer leaks dangling processes
+ (http://bugs.gnu.org/13166)
+** More sensible case-lambda* dispatch
+ (http://bugs.gnu.org/12929)
+** Do not defer expansion of internal define-syntax forms.
+ (http://bugs.gnu.org/13509)
+
+
+\f
+Changes in 2.0.7 (since 2.0.6):
+
+* Notable changes
+
+** SRFI-105 curly infix expressions are supported
+
+Curly infix expressions as described at
+http://srfi.schemers.org/srfi-105/srfi-105.html are now supported by
+Guile's reader. This allows users to write things like {a * {b + c}}
+instead of (* a (+ b c)). SRFI-105 support is enabled by using the
+`#!curly-infix' directive in source code, or the `curly-infix' reader
+option. See the manual for details.
+
+** Reader options may now be per-port
+
+Historically, `read-options' and related procedures would manipulate
+global options, affecting the `read' procedure for all threads, and all
+current uses of `read'.
+
+Guile can now associate `read' options with specific ports, allowing
+different ports to use different options. For instance, the
+`#!fold-case' and `#!no-fold-case' reader directives have been
+implemented, and their effect is to modify the current read options of
+the current port only; similarly for `#!curly-infix'. Thus, it is
+possible, for instance, to have one port reading case-sensitive code,
+while another port reads case-insensitive code.
+
+** Futures may now be nested
+
+Futures may now be nested: a future can itself spawn and then `touch'
+other futures. In addition, any thread that touches a future that has
+not completed now processes other futures while waiting for the touched
+future to completed. This allows all threads to be kept busy, and was
+made possible by the use of delimited continuations (see the manual for
+details.)
+
+Consequently, `par-map' and `par-for-each' have been rewritten and can
+now use all cores.
+
+** `GUILE_LOAD_PATH' et al can now add directories to the end of the path
+
+`GUILE_LOAD_PATH' and `GUILE_LOAD_COMPILED_PATH' can now be used to add
+directories to both ends of the load path. If the special path
+component `...' (ellipsis) is present in these environment variables,
+then the default path is put in place of the ellipsis, otherwise the
+default path is placed at the end. See "Environment Variables" in the
+manual for details.
+
+** `load-in-vicinity' search for `.go' files in `%load-compiled-path'
+
+Previously, `load-in-vicinity' would look for compiled files in the
+auto-compilation cache, but not in `%load-compiled-path'. This is now
+fixed. This affects `load', and the `-l' command-line flag. See
+<http://bugs.gnu.org/12519> for details.
+
+** Extension search order fixed, and LD_LIBRARY_PATH preserved
+
+Up to 2.0.6, Guile would modify the `LD_LIBRARY_PATH' environment
+variable (or whichever is relevant for the host OS) to insert its own
+default extension directories in the search path (using GNU libltdl
+facilities was not possible here.) This approach was problematic in two
+ways.
+
+First, the `LD_LIBRARY_PATH' modification would be visible to
+sub-processes, and would also affect future calls to `dlopen', which
+could lead to subtle bugs in the application or sub-processes. Second,
+when the installation prefix is /usr, the `LD_LIBRARY_PATH' modification
+would typically end up inserting /usr/lib before /usr/local/lib in the
+search path, which is often the opposite of system-wide settings such as
+`ld.so.conf'.
+
+Both issues have now been fixed.
+
+** `make-vtable-vtable' is now deprecated
+
+Programs should instead use `make-vtable' and `<standard-vtable>'.
+
+** The `-Wduplicate-case-datum' and `-Wbad-case-datum' are enabled
+
+These recently introduced warnings have been documented and are now
+enabled by default when auto-compiling.
+
+** Optimize calls to `equal?' or `eqv?' with a constant argument
+
+The compiler simplifies calls to `equal?' or `eqv?' with a constant
+argument to use `eq?' instead, when applicable.
+
+* Manual updates
+
+** SRFI-9 records now documented under "Compound Data Types"
+
+The documentation of SRFI-9 record types has been moved in the "Compound
+Data Types", next to Guile's other record APIs. A new section
+introduces the various record APIs, and describes the trade-offs they
+make. These changes were made in an attempt to better guide users
+through the maze of records API, and to recommend SRFI-9 as the main
+API.
+
+The documentation of Guile's raw `struct' API has also been improved.
+
+** (ice-9 and-let-star) and (ice-9 curried-definitions) now documented
+
+These modules were missing from the manual.
+
+* New interfaces
+
+** New "functional record setters" as a GNU extension of SRFI-9
+
+The (srfi srfi-9 gnu) module now provides three new macros to deal with
+"updates" of immutable records: `define-immutable-record-type',
+`set-field', and `set-fields'.
+
+The first one allows record type "functional setters" to be defined;
+such setters keep the record unchanged, and instead return a new record
+with only one different field. The remaining macros provide the same
+functionality, and also optimize updates of multiple or nested fields.
+See the manual for details.
+
+** web: New `http-get*', `response-body-port', and `text-content-type?'
+ procedures
+
+These procedures return a port from which to read the response's body.
+Unlike `http-get' and `read-response-body', they allow the body to be
+processed incrementally instead of being stored entirely in memory.
+
+The `text-content-type?' predicate allows users to determine whether the
+content type of a response is textual.
+
+See the manual for details.
+
+** `string-split' accepts character sets and predicates
+
+The `string-split' procedure can now be given a SRFI-14 character set or
+a predicate, instead of just a character.
+
+** R6RS SRFI support
+
+Previously, in R6RS modules, Guile incorrectly ignored components of
+SRFI module names after the SRFI number, making it impossible to specify
+sub-libraries. This release corrects this, bringing us into accordance
+with SRFI 97.
+
+** `define-public' is no a longer curried definition by default
+
+The (ice-9 curried-definitions) should be used for such uses. See the
+manual for details.
+
+* Build fixes
+
+** Remove reference to `scm_init_popen' when `fork' is unavailable
+
+This fixes a MinGW build issue (http://bugs.gnu.org/12477).
+
+** Fix race between installing `guild' and the `guile-tools' symlink
+
+* Bug fixes
+
+** Procedures returned by `eval' now have docstrings
+ (http://bugs.gnu.org/12173)
+** web client: correctly handle uri-query, etc. in relative URI headers
+ (http://bugs.gnu.org/12827)
+** Fix docs for R6RS `hashtable-copy'
+** R6RS `string-for-each' now accepts multiple string arguments
+** Fix out-of-range error in the compiler's CSE pass
+ (http://bugs.gnu.org/12883)
+** Add missing R6RS `open-file-input/output-port' procedure
+** Futures: Avoid creating the worker pool more than once
+** Fix invalid assertion about mutex ownership in threads.c
+ (http://bugs.gnu.org/12719)
+** Have `SCM_NUM2FLOAT' and `SCM_NUM2DOUBLE' use `scm_to_double'
+** The `scandir' procedure now uses `lstat' instead of `stat'
+** Fix `generalized-vector->list' indexing bug with shared arrays
+ (http://bugs.gnu.org/12465)
+** web: Change `http-get' to try all the addresses for the given URI
+** Implement `hash' for structs
+ (http://lists.gnu.org/archive/html/guile-devel/2012-10/msg00031.html)
+** `read' now adds source properties for data types beyond pairs
+** Improve error reporting in `append!'
+** In fold-matches, set regexp/notbol unless matching string start
+** Don't stat(2) and access(2) the .go location before using it
+** SRFI-19: use zero padding for hours in ISO 8601 format, not blanks
+** web: Fix uri-encoding for strings with no unreserved chars, and octets 0-15
+** More robust texinfo alias handling
+** Optimize `format' and `simple-format'
+ (http://bugs.gnu.org/12033)
+** Angle of -0.0 is pi, not zero
+
+\f
Changes in 2.0.6 (since 2.0.5):
* Notable changes
dead code elimination), equivalent bound lexicals, or it can elide them
entirely, depending on the context in which they are executed. This
pass is especially useful in removing duplicate type checks, such as
-those produced by SRFi-9 record accessors.
+those produced by SRFI-9 record accessors.
** Improvements to the partial evaluator
** Improved error and warning messages
-`syntax-violation' errors now prefer 'subform' for source info, with
-'form' as fallback. Syntactic errors in `cond' and `case' now produce
+`syntax-violation' errors now prefer `subform' for source info, with
+`form' as fallback. Syntactic errors in `cond' and `case' now produce
better errors. `case' can now warn on duplicate datums, or datums that
cannot be usefully compared with `eqv?'. `-Warity-mismatch' now handles
applicable structs. `-Wformat' is more robust in the presence of
** A few important bug fixes in the HTTP modules.
Guile's web server framework now checks if an application returns a body
-wheree it is not permitted, for example in response to a HEAD request,
+where it is not permitted, for example in response to a HEAD request,
and warn or truncate the response as appropriate. Bad requests now
cause a 400 Bad Request response to be printed before closing the port.
Finally, some date-printing and URL-parsing bugs were fixed.
HCoop / bpt / guile.git / blobdiff