Fix improper use of 'with-locale'.

* test-suite/guile-test (run-tests): Use 'setlocale' with check
  instead of 'with-locale'.
guile.m4 tweaks

* meta/guile.m4 (GUILE_PKG): Don't print "checking for guile 2.0" if
  we've already found 2.2.  Print the correct effective version at the
  end.
  (GUILE_PROGS): Allow prereleases, whose micro version does not yet
  match the effective version.  Default to the already-chosen effective
  version.
REPL Server: Fix 'stop-server-and-clients!'.

* module/system/repl/server.scm: Import (ice-9 match) and (srfi srfi-1).
  (*open-sockets*): Add comment.  This is now a list of pairs with a
  'force-close' procedure in the cdr.
  (close-socket!): Add comment noting that it is unsafe to call this
  from another thread.
  (add-open-socket!): Add 'force-close' argument, and put it in the cdr
  of the '*open-sockets*' entry.
  (stop-server-and-clients!): Use 'match'.  Remove the first element
  from *open-sockets* immediately.  Call the 'force-close' procedure
  instead of 'close-socket!'.
  (errs-to-retry): New variable.
  (run-server): Add a pipe, used in the 'force-close' procedure to
  cleanly shut down the server.  Put the server socket into non-blocking
  mode.  Use 'select' to monitor both the server socket and the pipe.
  Don't call 'add-open-socket!' on the client-socket.  Close the pipe
  and the server socket cleanly when we're asked to shut down.
  (serve-client): Call 'add-open-socket!' with a 'force-close' procedure
  that cancels the thread.  Set the thread cleanup handler to call
  'close-socket!', instead of calling it in the main body.

* doc/ref/api-evaluation.texi (REPL Servers): Add a caveat to the manual
  entry for 'stop-servers-and-clients!'.
Add cooperative REPL server module.

Modified-by: Mark H Weaver <mhw@netris.org>

* module/system/repl/coop-server.scm: New module.

* module/system/repl/repl.scm (start-repl): Extract body to start-repl*.
  (start-repl*): New procedure.
  (run-repl): Extract body to run-repl*.
  (run-repl*): New procedure.

* module/system/repl/server.scm (run-server): Extract body to
  run-server*.
  (run-server*): New procedure.

* doc/ref/api-evaluation.texi (Cooperative REPL Servers): New node.

* module/Makefile.am (SYSTEM_SOURCES): Add system/repl/coop-server.scm.
Import 'lstat' and 'mkstemp' modules from Gnulib.

* lib/mkstemp.c:
* lib/secure_getenv.c:
* lib/tempname.c:
* lib/tempname.h:
* m4/mkstemp.m4:
* m4/secure_getenv.m4:
* m4/tempname.m4: New files.

* lib/Makefile.am:
* m4/gnulib-cache.m4:
* m4/gnulib-comp.m4: Add modules.
Rely on Gnulib for 'select', 'lstat', and 'mkstemp'.

* libguile/iselect.h:
* libguile/threads.c:
* libguile/deprecated.h: Rely on Gnulib for sys/select.h.

* libguile/filesys.c: Rely on Gnulib for 'lstat' and 'mkstemp'.
Fix inline asm of VM numerical operations for x32.

* libguile/vm-i-scheme.c (_CX): Choose register size based on
  'SIZEOF_VOID_P' instead of '__x86_64__'.
Add (system base types).

* module/system/base/types.scm, test-suite/tests/types.test: New files.
* module/Makefile.am (SYSTEM_BASE_SOURCES): Add system/base/types.scm.
* test-suite/Makefile.am (SCM_TESTS): Add tests/types.test.
Add GDB extension to support Guile.

* libguile/libguile-2.0-gdb.scm: New file.
* libguile/Makefile.am (install-data-local): New target.  Based on code
  from GNU libstdc++.
  (EXTRA_DIST): Add 'libguile-2.0-gdb.scm'.
* doc/ref/api-debug.texi (GDB Support): New section.
build: Bail out when 'PKG_CHECK_MODULES' is missing.

* configure.ac: Add 'm4_pattern_forbid' invocation.
Make sure 'ftw' allows directory traversal when running as root.

* module/ice-9/ftw.scm (stat-dir-readable?-proc): Return #t when UID is
  zero.  Reported Frank Terbeck <ft@bewatermyfriend.org>.
build: Fix out-of-source-tree installation of libguile-2.0-gdb.scm.

* libguile/Makefile.am (install-data-local): Use $< instead of just
  libguile-2.0-gdb.scm.  Quote file names in $(INSTALL_DATA) invocation.
Fix typo in manual.

* doc/ref/api-foreign.texi (Void Pointers and Byte Access):
  (rnrs bytevector) --> (rnrs bytevectors).
Import Gnulib modules: link, fsync, readlink, rename, mkdir, rmdir, unistd.

* lib/fsync.c:
* lib/link.c:
* lib/mkdir.c:
* lib/strdup.c:
* m4/fsync.m4:
* m4/link.m4:
* m4/mkdir.m4:
* m4/strdup.m4: New files.

* lib/Makefile.am
* m4/gnulib-cache.m4
* m4/gnulib-comp.m4: Add modules.
Rely on Gnulib for fsync, link, readlink, mkdir, rmdir, and rename.

* libguile/filesys.c: Remove 'fsync' wrapper for MinGW.
  (scm_link, scm_readlink, scm_mkdir, scm_rmdir): Define these
  unconditionally.
  (my_rename): Remove.
  (scm_rename): Use 'rename' instead of 'my_rename'.
Rely on Gnulib for <unistd.h>.

* libguile/async.c:
* libguile/backtrace.c:
* libguile/error.c:
* libguile/filesys.c:
* libguile/fports.c:
* libguile/gc-malloc.c:
* libguile/gc.c:
* libguile/gdbint.c:
* libguile/init.c:
* libguile/ioext.c:
* libguile/load.c:
* libguile/mallocs.c:
* libguile/mkstemp.c:
* libguile/ports.c:
* libguile/posix.c:
* libguile/r6rs-ports.c:
* libguile/random.c:
* libguile/rw.c:
* libguile/scmsigs.c:
* libguile/script.c:
* libguile/simpos.c:
* libguile/socket.c:
* libguile/stime.c:
* libguile/strports.c:
* libguile/threads.c: Unconditionally include <unistd.h>.
SRFI-18: Export 'current-thread'.

Fixes <http://debbugs.gnu.org/16890>.
Reported by Xin Wang <dram.wang@gmail.com>.

* module/srfi/srfi-18.scm: Reexport 'current-thread'.
* THANKS: Add "Xin Wang" to fixes section.
build: Make c-tokenize.c build on non-GNU systems.

* libguile/c-tokenize.lex: Add %top directive to include <config.h>
  first.  This fixes builds on systems that use Gnulib's <stdio.h> and
  similar replacements.  See <http://hydra.nixos.org/build/9259627> for
  an example.
Add missing files to the test-suite Makefile.

* test-suite/Makefile.am (SCM_TESTS): Add "tests/compiler.test",
  "tests/encoding-escapes.test", "tests/encoding-iso88591.test",
  "tests/encoding-iso88597.test", "tests/encoding-utf8.test",
  "tests/pairs.test", "tests/records.test", "tests/sort.test",
  "tests/srfi-17.test", "tests/srfi-18.test", "tests/srfi-98.test",
  "tests/streams.test", "tests/vectors.test", and "tests/web-client.test".
SRFI-19: Update the table of leap seconds.

* module/srfi/srfi-19.scm (leap-second-table): Update to include the two
  most recent leap seconds.