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changes in sbcl-1.0.55 relative to sbcl-1.0.54: * enhancements to building SBCL using make.sh: ** --fancy can be specified to enable all supported feature enhancements. ** --with-<feature> and --without-<feature> can be used to specify which features to build with. ** --arch option can be used to specify the architecture to build for. (Mainly useful for building 32-bit SBCL's on x86-64 hosts, not full-blows cross-compilation.) * enhancement: extended package prefix syntax <pkgname>::<form-in-package> which allows specifying name of the default interning package for the whole form. * enhancement: when *READ-EVAL* is true, arrays with element type other than T can be printed readably using #.-based syntax. (Thanks to Robert Brown) * enhancement: MAKE-ALIEN signals a storage-condition instead of returning a null alien when malloc() fails. (lp#891268) * enhancement: SB-EXT:PRINT-UNREADABLY restart for PRINT-NOT-READABLE conditions can be conveniently accessed through function with the same name, analogously to CONTINUE. * enhancement: SB-EXT:*SUPPRESS-PRINT-ERRORS* can be used to suppress errors from the printer by type, causing an error marker to be printed instead. (Thanks to Attila Lendvai) * enhancement: BACKTRACE and DESCRIBE now bind *PRINT-CIRCLE* to T, and generally behave better when errors occur during printing. * enhancement: the test runner now takes a --report-skipped-tests argument to report the individual tests skipped as well as the number of skipped tests. * enhancement: undefined functions now appear in backtraces as ("undefined function") instead of ("bogus stack frame") on x86oids. * enhancement: detected deadlocks no longer cause stderr to be spammed, and deadlock errors are reported in an easier-to-decipher manner. * enhancement: DESCRIBE on type designators reports the expansion in more cases. * enhancement: SBCL now provides either an explicit :BIG-ENDIAN or :LITTLE-ENDIAN in *FEATURES*, instead of :BIG-ENDIAN being implied by lack of the :LITTLE-ENDIAN feature. (Thanks to Luís Oliveira, lp#901661) * enhancement: better disassembly of segment-prefixes on x86 and other instruction prefixes (e.g. LOCK) on x86 and x86-64. * optimization: FIND and POSITION on bit-vectors are orders of magnitude faster (assuming KEY and TEST are not used, or are sufficiently trivial.) * optimization: SUBSEQ on vectors of unknown element type is substantially faster. (lp#902537) * optimization: specialized arrays with non-zero :INITIAL-ELEMENT can be stack-allocated. (lp#902351) * optimization: the compiler is smarter about representation selection for floating point constants used in full calls. * optimization: the compiler no longer refuses to coerce large fixnums to single floats inline, except on x86 where this limitation is still necessary. * bug fix: deadlock detection could report the same deadlock twice, for two different threads. Now a single deadlock is reported exactly once. * bug fix: interval-arithmetic division during type derivation did not account for signed zeros. * bug fix: compiler error when typechecking a call to a function with non-constant keyword arguments. * bug fix: misoptimization of TRUNCATE causing erratic behaviour. * bug fix: condition slot accessors no longer cause undefined function style-warnings when used in the :REPORT clause of the DEFINE-CONDITION form that defines them. (lp#896379) * bug fix: DEFGENERIC warns about unsupported declarations, as specified by ANSI. (lp#894202) * bug fix: SUBTYPEP tests involving forward-referenced classes no longer bogusly report NIL, T. * bug fix: bogus style-warnings for DEFMETHOD forms that both declared some required arguments ignored and performed assignments to others. (lp#898331) * bug fix: *EVALUATOR-MODE* :COMPILE treated (LET () ...) identically to (LOCALLY ...) leading to internally inconsistent toplevel-formness. * bug fix: non-toplevel DEFSTRUCT signaled a style warning for unknown type. * bug fix: redefining a function whose previous definition contained an unknown type no longer causes a style-warning. (lp#806243) * bug fix: undefined functions now appear in backtraces as ("undefined function") instead of ("bogus stack frame") on non-x86oids. * bug fix: backtraces are no longer cut off at ("undefined function") when called under certain circumstances (involving a caller-allocated stack frame) on PPC. * bug fix: RUN-PROGRAM leaked a file-descriptor per call on non-Windows systems. (regression since 1.0.53) * bug fix: GC deadlocks from dladdr() on certain platforms. * bug fix: broken standard streams no longer automatically cause recursive errors on debugger entry. * bug fix: build ignored --dynamic-space-size=<size> argument to make.sh (regression since 1.0.53) * bug fix: attempts to stack allocate a required argument to a function with an external entry point caused compiler-errors. * bug fix: compiler notes for failed stack allocation for a function argument no longer claim to be unable to stack allocate the function. * bug fix: COERCE now signals a type-error on several coercions to subtypes of CHARACTER that are forbidden according to ANSI. (lp#841312) * bug fix: missing failure-to-stack-allocate compiler notes for some forms of MAKE-ARRAY with dynamic-extent. (lp#902351) * bug fix: some of the compile-time side-effects of DEFCLASS were not caught by package locks.
Source: README, updated 2012-01-09