;;;; -*- coding: utf-8; fill-column: 78 -*-
-changes relative to sbcl-1.0.52:
+changes relative to sbcl-1.0.53:
+ * minor incompatible changes:
+ ** RENAME-FILE on a symbolic links used to rename the linked-to file instead
+ of the link.
+ ** DELETE-DIRECTORY on symbolic link to a directory used to delete the
+ directory, but now signal an error instead. Use TRUENAME to resolve
+ the pathname if you wish to delete the linked directory, and DELETE-FILE
+ if you wish to delete the
+ ** The internal SB-THREAD::SPINLOCK API has been deprecated, and using
+ symbols associated with it will trigger a compile-time warning.
+ * thread-related enhancements:
+ (This work has been funded by the SBCL Threading 2011 IndieGoGo campaign.
+ Many thanks to generous donors!)
+ ** Threading is now more reliable on non-Linux platforms. We still
+ don't consider threads on non-Linux platforms good enough to
+ enable them by default, but they're in a clearly better shape now.
+ ** Deadlines supported now on all platforms.
+ ** All blocking functions in the threading API now have a :TIMEOUT
+ argument.
+ ** Semaphore notification objects have been added to SB-THREAD.
+ ** SB-CONCURRENCY contrib now includes Allegro-style GATE objects.
+ ** SB-EXT:COMPARE-AND-SWAP has been extended to support SLOT-VALUE,
+ STANDARD-INSTANCE-ACCESS, and FUNCALLABLE-STANDARD-INSTANCE-ACCESS.
+ ** Users can now defined new places usable with SB-EXT:COMPARE-AND-SWAP
+ using an API anologous to defining new SETFable places.
+ * GC-related enhancements and bug fixes:
+ ** --dynamic-space-size and --control-stack-size now understand Kb, Mb,
+ and Gb suffixes. Default is megabytes as before.
+ ** Default dynamic space size on all GENCGC platforms is now 512Mb for
+ 32-bit systems, and 1Gb for 64-bit systems. (OpenBSD/x86-64 is the only
+ exception, defaulting to mere 444Mb to fit under default ulimits.) The
+ new defaults are in place to prevent hitting swap on low-end systems.
+ Use build-time option --dynamic-space-size to build an SBCL with
+ another default, or the runtime option to adjust the size at startup: a
+ good size is at most equal to the amount of physical memory the system
+ has.
+ ** on GENCGC systems nursery and generation sizes now default to 5% of
+ dynamic-space size.
+ ** on 64-bit systems setting the nursery size above 4Gb now
+ works. (lp#870868)
+ ** SB-KERNEL:MAKE-LISP-OBJ on GENCGC no longer categorically refuses to
+ create SIMPLE-FUN objects.
+ * SB-BSD-SOCKETS bug fixes:
+ ** GET-PROTOCOL-BY-NAME had a significant memory leak.
+ ** GET-HOST-BY-NAME and GET-HOST-BY-ADDRESS small amounts of memory on
+ systems with getaddrinfo().
+ ** GET-HOST-BY-NAME and GET-HOST-BY-ADDRESS weren't thread or interrupt
+ safe outside systems with getaddrinfo().
+ * enhancement: special-case TCO prevention for functions which never return
+ extended to untrusted type, keeping one more frame's worth of debug
+ information around in many cases.
+ * enhancement: debug-names of anonymous and local function are more
+ descriptive. Affects backtraces and SB-SPROF results. (lp#805100)
+ * enhancement: on CHENEYGC targets, SB-KERNEL:MAKE-LISP-OBJ now does
+ the same validation of pointer objects as GENCGC does, instead of a
+ comparatively weak bounds-check against the heap spaces.
+ * enhancement: on win32, ABS of complex floats guards better against
+ overflows. (lp#888410)
+ * enhancement: RUN-PROGRAM now distinguishes exec() failing from child
+ process exiting with code 1. (lp#676987)
+ * enhancement: convenience function SET-SBCL-SOURCE-LOCATION for informing
+ the system where on the filesystem the SBCL sources themselves are
+ located. (Thanks to Zach Beane)
+ * enhancement: the compiler is now able to derive tighter bounds for
+ floating point numbers in some cases. (Thanks to Lutz Euler, lp#894498)
+ * bug fix: on 64-bit targets, atomic-incf/aref does index computation
+ correctly, even on wide-fixnum builds. (lp#887220)
+ * bug fix: (directory "foo/*/*.*") did not follow symlinks in foo/ that
+ resolved to directories.
+ * bug fix: type mismatch when assigning to lexical variables no longer
+ result in fasl-dumping internal type objects. (lp#890750)
+ * bug fix: type mismatch on (setf aref) and function return values no
+ longer result in fasl-dumping internal type objects.
+ * bug fix: With several combinations of argument types, for example (EXPT
+ <integer> <(complex double)>), EXPT now uses double-precision throughout
+ instead of partially calculating only to single-precision. (lp#741564;
+ thanks to Lutz Euler)
+ * bug fix: SYMBOL-VALUE-IN-THREAD is no longer able to construct bogus
+ objects when interrupted by GC on PPC.
+
+changes in sbcl-1.0.53 relative to sbcl-1.0.52:
* enhancement: on 64-bit targets, in src/compiler/generic/early-vm.lisp,
the parameter n-fixnum-tag-bits may now vary from 1 (fixnum =
(signed-byte 63)) to 3 (fixnum = (signed-byte 61)) at build-time.
* bug fix: low-level control flow optimisations could result in bogus
code in functions with tail and non-tail calls to local functions on
x86oids. (lp#883500)
+ * bug fix: on SPARC/:sb-unicode, avoid crashing the assembler by trying
+ to emit literal characters > (code-char 4095), for comparisons with
+ constant characters.
+ * bug fix: ROOM reported only the low 32 bits of dynamic space usage
+ on 64 bit platforms. (lp#881445)
+ * bug fix: DELETE-FILE did not MERGE-PATHNAMES, making it possible to
+ delete the wrong file when using relative pathnames. (lp#882877)
+ * bug fix: optimized SEARCH of vectors-on-vectors mishandled zero-length
+ sequences and :KEY NIL.
changes in sbcl-1.0.52 relative to sbcl-1.0.51:
* enhancement: ASDF has been updated to version 2.017.