[Gcl-devel] GCL 2.6.8 and 2.6.9 are released

From: Camm Maguire Subject: [Gcl-devel] GCL 2.6.8 and 2.6.9 are released Date: Tue, 27 Aug 2013 11:48:24 -0400

Greetings! The GCL team is happy to announce a pair of stable releases at ftp://ftp.gnu.org/gnu/gcl/gcl_2.6.8.tar.gz and ftp://ftp.gnu.org/gnu/gcl/gcl_2.6.9.tar.gz Please also see the homepage and release notes at http://www.gnu.org/software/gcl. The 2.6.8 release represents several years worth of fixes and enhancements, notably a great extension of GCL's native object file relocation support. 2.6.9 is released concurrently as it contains a number of structural improvements which, while passing all our tests, may cause issues for some people. These improvements are chiefly a two word cons, immediate fixnum support, word sized fixnums (64bits on 64bit machines), and a 'dynamic maxpage' implementation, which removes all compile time limits to the heap size and auxiliary typing and marking tables. 2.6.9 will attempt to manage the heap given the apparent constraints of the running system, with the goal of eliminating allocation failures and handling out of memory conditions in advance with a modicum of grace. As this involves a runtime startup probe of brk, which has varying degrees of significance in different operating systems, one might still experience overallocation of memory (notably on hurd). In such cases, gcl -eval '(si::set-log-maxpage-bound x)' will limit the heap to 2^x bytes as a workaround. All gcl, maxima, acl2, axiom, and hol88 builds and self tests pass for the following platforms, with noted exceptions(*) itemized below: debian: amd64 armel armhf hurd-i386 i386 ia64 kfreebsd-amd64 kfreebsd-i386 mips mipsel powerpc s390 s390x sparc debian-ports: alpha hppa m68k powerpcspe ppc64 sh4 sparc64 x32 macosx, windows *exceptions 1) all systems use native object relocation by default now but ia64 and ppc64, which use dlopen. Thus there is a typical limit of 1024 files that can be loaded, and the current acl2 build exceeds this limit. As this bound is runtime configurable with root access, this is not an insurmountable obstacle. 2) kfreebsd-i386 systems do not appear to allow one to brk more than 500M of memory, and the acl2 certification process needs 1Gb. A solution here is as yet unknown but may be forthcoming shortly. 3) windows builds have been performed on win95. There is an as yet unidentified runtime error running the 2.6.9 images on win7. More information here will be forthcoming shortly. Windows installers can be found at ftp://ftp.gnu.org/gnu/gcl. 4) macosx builds have been tested on snow leopard. More recent versions appear to have a linker bug which prevents configure from detecting the provided profil() routine. A workaround here should be to echo "#undef NO_PROFILE >>h/config.h" after configure and before make. GCL has moved to the git version control system. The 2.6.8 and 2.6.9 branches and tags are identical in cvs and git. Henceforward, modifications will be made to git only. As of the present writing, git contains a merge of experimental into master, and a port of most 2.6.x improvements into master. This will form the basis of a 2.7.0 release sometime in the future. For those unfamiliar with git: git clone git://git.sv.gnu.org/gcl.git cd gcl git checkout master, or git checkout Version_2_6_9, etc. cd gcl ./configure && make git can of course provide much more. I'm currently using Egg, an emacs interface to git, with increasing success. Merging, logging, bisecting, branching, and uploading appear much simpler. I recommend this tool to would-be gcl contributors. Feedback as always most welcome! Take care, -- Camm Maguire address@hidden ========================================================================== "The earth is but one country, and mankind its citizens." -- Baha'u'llah

reply via email to



[Prev in Thread] Current Thread [Next in Thread]