changes in sbcl-2.3.9 relative to sbcl-2.3.8:
* enhancement: stack allocation via DYNAMIC-EXTENT now applies to all values
that a variable can take on (for example via SETQ), not just the initial
binding. This permits for example building complex or recursive structures
on the stack more easily via iteration. See the updated manual entry for
more details.
* minor incompatible change: some interfaces in the SB-POSIX contrib module
adhere to the spec that a NULL result from the C library is an error if
and only if errno was altered by the call. SYSCALL-ERROR will be signaled
if so.
* enhancement: the SB-POSIX contrib module provides DO-PASSWDS and DO-GROUPS
to allow users to iterate over password and group databases safely.
* platform support:
** support for Darwin on x86 and PowerPC has been restored. (lp#2033287,
thanks to Kirill A. Korinsky, Sergey Fedorov and barracuda156)
* bug fix: miscompilation due to erroneous type derivation in the presence
of multiplication of fixnums by ratios. (lp#2033695, reported by Patrick
Dussud)
* bug fix: compiler error when compiling signed- and unsigned 64-bit type
checks in some cases. (lp#2033997, reported by Eric Smith)
* bug fix: compiler error when the :INITIAL-CONTENTS argument to MAKE-ARRAY
is a constant non-sequence. (lp#2037328)
* bug fix: compiler error when constant-folding sequence functions with
:TEST or :KEY functions erroring on the given sequence. (lp#2037341)
* bug fix: compiler error when arguments to array or sequence functions
imply a very large sequence size. (lp#2037443, lp#2037348)
* bug fix: compiler error when the return value of ADJUST-ARRAY is not used.
(lp#2037450)
* optimization: function types derived by the compiler can in some cases be
propagated backwards through the intermediate representation.
* optimization: better type derivations for LDB, LOGBITP, RATIO.
* optimization: eliminate bound checks in more cases involving transitive
comparisons.