Gauche-0.8.1 is a maintainance release of Gauche-0.8. Gauche-0.8 release announce is cited here: * *New Features* o Auxiliary scripts: Gauche now installs a few scripts that help to build and install extension packages. The gauche-package script handles download, unpacking, configuration, building and installation in one command invocation. See the description of "Using extension packages" section of the manual. (NB: this feature is still new and may have problems, but hey, let's give a try.) A couple of auxiliary scripts, gauche-cesconv and gauche-install can be called from Makefile. They don't have documentation yet, but try --help option for these scripts. o Module util.match: Andrew Wright's match macro is bundled. It is modified to handle Gauche's object system. * *Improvements* o A couple of performance tuning were done for I/O and loading Scheme files. o Now you can subclass <error> class as well as <exception> class to define your own error type. A new built-in macro guard, which is SRFI-34 compliant, can be used to handle errors selectively. Eventually the errors from built-in procedures will have more structured exception hierarchy. o New built-in system procedures: sys-lchown, sys-realpath. o Built-in sort routines now have stable versions, stable-sort and stable-sort!. o New built-in macro: let/cc. o New built-in keyword procedures: delete-keyword, delete-keyword!. o New built-in regexp procedure: rxmatch-num-matches. o Module file.util: new procedures: file-is-symlink?, file->string, file->string-list, file->list, file->sexp-list. o Module gauche.net: documented the previously experimental procedures: socket-send, socket-sendto, socket-recv, socket-recvfrom, socket-getpeername, socket-getsockname. Now these are official procedures. o Module gauche.process: process-command wasn't exported, even though it was documented. o Module gauche.test: you can control whether the error in the test procedure is reported or not by an envioronment variable GAUCHE_TEST_REPORT_ERROR and a global variable *test-report-error*. Useful to find a problem during testing. o Module www.cgi: new procedure cgi-get-metavariables; allows the user routine to take metavariables via cgi-metavariables parameter, so that cgi scripts can be easily modularized. o Module gauche.parseopt: support of "optional option-argument" is added. o Module gauche.array: homogeneous numeric array types are added. o Module text.html-lite: added frame-related tags. * *Bug Fixes* [snip]