Greetings! The GCL team is happy to announce the release of version 2.6.11, the latest achievement in the 'stable' (as opposed to 'development') series. Please see http://www.gnu.org/software/gcl for downloading information.

This release features better floating point precision processing, support for cygwin, arm64, ppc64, ppc64le and solaris, more robust SGC, exact vararg initialization, SIGFPE trapping via #'si::break-on-floating-point-exceptions, x86 support for libopcode instruction disassembly via #'si::disassemble-instruction, simplified build dependencies, faster gcd, lcm, typep, coerce, 1+-, predicates, pcl cache, SGC, fast-linking, closure calls and compiled bignums, compilation of top level closure forms by default, memoization of array type handling, support for machines handling long and object returns in different registers, a much smaller cmpinclude.h, prelink support, default Debian compiler flag support (especially stack-guard), new linking and fast-linking diagnostic functions, some selinux support via READ_IMPLIES_EXEC personality, and many miscellaneous bug fixes and support for bugs in various external systems.

From the git log:

• fix gprof disabling configure message
• remove debug message from BUGGY_MAXIMUM_SSCANF_LENGTH code
• BUGGY_MAXIMUM_SSCANF_LENGTH
• BROKEN_WINDOWS_SSCANF
• clear_protect_memory for macosx
• fix find_init_name1 for leading underscore
• ppc64le support headers
• ppc64le support
• allow unexec to find last load section separated from bss by alloc sec
• fix update_real_maxpage for good first_data_page when data_start unset
• accept TMP paths with types/versions
• configure error if external libbfd.a/libiberty.a not found
• fix FPE in ansi-tests
• fix eof detection problems when running as shell script
• better ansi test reporting
• quit with Control-D when using readline
• correct current-timezone for dst
• fix match function proclaim skew
• remove mingw gmp detection error
• better external gmp detection
• do not attempt to load on error in #'compile
• Fix Windows external gmp lib detection
• fix calls in closures to other local funs
• trial selinux support
• R_ARM_JUMP24
• default phys_pages for darwin
• restore sys/mman.h to alloc.c
• port gcl_mprotect to windows
• try SGC for aarch64
• gcl_mprotect prototype mod
• better aarch64 relocation
• gcl_mprotect typos
• trap mprotect errors with gcl_mprotect
• move stack_guard initialization past bignum initialization
• memory_protect return
• abort sgc on mprotect failure
• set stack_guard after alloc setup
• disable SGC on aarch64, erratic unreproducible uncontrolled segfaults
• GET_FAULT_ADDR aarch64
• set stack_guard in main to avoid triggering a smash detection
• trampoline fix for aarch64
• SGC and stack_guard for aarch64
• aarch64 comment fix
• R_AARCH64_LDST128_ABS_LO12_NC
• aarch64 st8 reloc updates
• special reloc file for aarch64
• aarch64 trampoline mods
• aarch64 support
• pad struct frame to ensure 8 byte alignment for jmp_buf
• R_ARM_THM_JUMP24
• fix sh4 CLEAR_CACHE
• clear_protect_memory on all elf machines
• mips uses builtin_clear_cache like mipsel
• consolidate and fix mprotect/clear cache calls on loaded code
• backport travel_push_new from master
• restore jmp_buf alignment in attempt to fix mips build issues
• strncpy_chk for axiom
• protos and CFLAGS for axiom extensions
• better solaris unexec fix
• unexec fix for solaris
• update kfbsd config files for new sysconf handling
• get_phys_pages_no_malloc portability
• earlier prelink_init, phys_pages w/o malloc
• error on overflow of array dimensions
• clean mips elf code
• FILE * casts for windows feof wrapper
• better casts for frs_jmpbuf
• remove setjmp from cmpinclude.h
• getc,putc, and feof wrappers
• mark special symbols _gp_disp and __gnu_local_gp STB_LOCAL
• PWD -> PWD_CMD
• uid_t for mingw
• error on unrelocated non-local symbol for coff and macho
• no geteuid on mingw
• pwd -W for mingw
• gcl_puts typo
• remove saving_system condition on free error
• find_sym_ptable typo fix
• export C functions for AXIOM extensions
• export si::find-sym-ptable
• saving_system handling fixes
• memmove in gc, abort on unrelocated non-local symbol in sfaslelf.c
• --enable-prelink configure arg; stack_chk_guard for 68k
• hurd stack_guard, ppc64 C_GC_OFFSET
• fix manpage
• update manpage processing
• lintian cleanups
• append CPPFLAGS to CFLAGS
• update config.guess and config.sub
• static init for __stack_chk_guard
• reduce default optimizations on hppa to -O2 (axiom hang)
• PIE handling for __stack_chk_guard on arm/sh4
• debian package cleanups
• fix offsets ppc
• fix unexelf file offsets
• proper variable types in prelink.h
• prelink documentation
• collect and compile with -fPIE all refs to shared lib variables (prelink)
• fix unexelf.c to work with prelink
• reenable 386 4.9.0 opt flags
• gc protect closure calls
• workaround gcc 4.9.0 386 bug
• protect usig.c ASM calls with volatile variables
• access libopcodes through dlopen, cleanup fpe tests
• dlopen fixes
• noreturn function attribute for unwind, removes some compiler warnings
• custreloc for ppc64
• avoid string.h functions in user_init
• dont try to parse uccontext on non-linux unix targets
• don't make info files on install
• i386 fpe support
• mingw lintian
• add fenv.h to make-init.h for new_init.c
• doc sync
• base header cleanup
• fix rank 0 aref
• revert to broken functionp for axiom support for the moment
• protect fpe_test from C optimization
• remove SGC_TOUCH dup
• merge fpe
• all vararg afuns have all object arg types to support fast linking in 2.6.x
• cmpinclude.h items for axiom
• protect fboundp in top-level
• mingw typo fix
• eliminate some C compiler warnings, define SIGNED_CHAR
• more predicate-type props
• normalize class types for ansi-tests
• faster typep
• faster coerce
• functionp returns nil on symbols
• ihs_overflow compproto
• trial coerce
• fixnum returns declared as object with internal casts in 2.6.x, see c_apply_n
• proto for vfun_wrong_number_of_args
• do not save-funob on proclaimed-function
• compile closures
• abs returns real
• faster pcl cache ops
• optimize 1+ and 1- 2
• fast link diagnostics via si::*link-list*
• all compiled closures are turbo
• memoize best-array-element-type
• faster predicate and class calls
• fast link to afuns
• correct vararg calls 2
• compile top level macrolets
• write proclaimed-closure props in sys-proclaims.lisp 2
• write proclaimed-closure props in sys-proclaims.lisp
• optimize 1+ and 1-
• disable stack bignums, as they thrash rather than optimize
• prevent apply from foiling fast-link calls later in file
• correct vararg calls
• check_socket is static
• protect against empty first/lastfile
• move check_socket
• handle firstfile/lastfile for win targets in new makefiles
• fix mcompdefs.h on mingw
• synch to o/makefile from master
• move alloca prototype for solaris
• synch makefile with o/makefile
• synch CMPINCLUDE_FILES
• eliminate compbas2.h
• header cleanup
• maxima protos
• define stp_ordinary for maxima
• remove -DVOL from gcc command line
• solaris FILE casts
• file casts, mman.h include reorder in alloc.c
• casts for fileno
• casts for all LISTEN_FOR_INPUT
• probe for mprotect in configure
• missing integer declarations
• strip warnings from emacs configure runs
• eliminate GEN typedef
• solaris and windows cleanups
• port mcompdefs.h to solaris
• probe for alloca.h
• windows fixes
• add some missing cmpinclude info
• faster SGC_TOUCH
• shrink cmpinclude.h by factor of 10
• default to cur in data_start unset in update_real_maxpage
• condition phys_pages on raw_image, real_maxpage cannot change in a run
• init is in .opd on ppc64
• ppc64 custreloc cleanups
• default to custreloc for ppc64
• only probe phys_pages when heap is in place
• preliminary ppc64 custreloc support
• make sure heap is executable
• gcd/lcm opts
• add mprotect to alpha clear-cache
• delete gmp4/autom4te.cache
• delete gmp3/autom4te.cache
• fix powerpc-linux clear_cache
• setrlimit on mips now fixed
• update documentation makefiles
• add built documentation files to git
• do not make documentation by default, simplify build-dependencies
• solaris cleanups
• prune shlibdeps in gcl-tk
• 2.6.11pre test 10
• update minver and debian/changelog
• don't over allocate the stack
• trial header cleanup and cmpinclude.h reduction
• don't over allocate the stack
• use normalized constants for fpe tests
• update documentation
• do not attempt to edit pcl gazonk data files
• update documentation for break-on-floating-point-exceptions
• 2.6.11pre test 10
• update minver and debian/changelog
• add built documentation files to git
• fpe support in non-ansi images
• prune shlibdeps in gcl-tk
• do not make documentation by default, simplify build-dependencies
• solaris cleanups
• cleanup compile-file1
• use *fasd-data* independently of :system-p to govern data file format
• protect fpe_test in absense of disassembly
• generalize fpe_test
• fpe portability 2
• gnuwin95.h SF macro
• fnop for unavailable disassembly
• windows headers typos
• 386-macosx.h typo
• more fpe portability
• typo in fetestexcepts
• FPE constants for mingw
• fpe mingw
• allow nil +mc-context-offsets+
• fpe cygwin cleanups, test arrays static
• fpe cygwin
• more fpe portability
• fpe mac port
• import needed si symbols into fpe package
• redistribute fld, *fixnum, *float and *double
• gcl_fpe.lsp
• SIGFPE handler support
• disassemble-instruction and function-by-address
• configure checks for feenableexcept and print_insn
• partial update clcs files from master
• gc protect malloc
• protect malloc_list from nil car, e.g. sgc-start
• cygwin_conv_to_full_win32_path prototype
• cygwin prototypes
• make sure raw cygwin images have sufficient stack
• simplify readline
• rework initializaion of 'first' vararg argument
• free() file buffers and preserve malloc_list across saves
• cleanup dlopen linker option
• 1f is not a float
• remove Scdr in free
• rework closing streams on saving_system
• use writable_malloc to protect gprof
• dummy writable_malloc in tkMain.c
• reset malloc_list on image save, wrap all fopen calls
• try writable_malloc for sgc/setbuf issues
• NO_SETUF for hppa workaround
• Add dummy support for coff R_SECREL32 to load objects compiled with debugging
• HAVE_SIGALTSTACK macro
• cleanup sigaltstack code and macros
• try to use main sigaltstack code for mac
• signal.h move in alloc.c
• define SPECIAL_RSYM in mingw.h for now
• autoconf macro checking for d_type field in struct dirent
• main/init_alloc cleanup
• main cleanup 1
• new segfault trapping error detection strategy
• do not allocate bigger fixnum table unless necessary
• new GBC_enable strategy
• tk-package compile fix
• socklen_t cleanups
• gprof-raw_image-saving_system fix
• DEB_HOST_ARCH in debian/rules
• debian emacsen-compat policy
• gbc cygwin cleanups
• more beginning contiguous memory for cygwin
• cs_org=0 when saving system, reset on image reexec
• let cygwin probe for maximum heap size
• configure syntax fix
• -fno-zero-initialized-in-bss for cygwin
• initflag/raw_image cleanups
• replace uninitialized initflag with initialized raw_image
• trial cywin support
• parse float fix
• read-base fix
• updated parse_number
• mpz_set_str support
• scale floats in .data by normalized constants when necessary
• hppa support for symbols in libgcc, gmp version fix to --enable-dyngmp
• NO_SETBUF cleanups
• configure syntax fix
• configure whitespace fix
• restore tcl/tk configure autodetect and build;further gcl/tk cleanups
• update to latest readline function semantics