2018-01-16  Bruno Haible  <bruno@clisp.org>

	Prepare for new release.
	* configure.ac: Bump version number to 2.12.
	* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
	* README: Likewise.
	* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): Bump to 2:5:0.
	* NEWS: Mention some more improvements.

2018-01-16  Bruno Haible  <bruno@clisp.org>

	Correct distinction between stack overflow and other fault on AIX.
	* src/stackvma-mincore.c (MINCORE_ADDR_T): New type.
	(is_mapped, mapped_range_start, mapped_range_end): Use it.
	* configure.ac: Don't use stackvma-procfs.c on AIX.
	* NEWS: Mention the improvement.

2017-10-29  Bruno Haible  <bruno@clisp.org>

	Improve Haiku support.
	* src/fault-haiku.h: New file.
	* src/fault-haiku-i386.h: New file.
	* src/Makefile.am (noinst_HEADERS): Add them.
	* configure.ac: On Haiku, use fault-haiku-i386.h instead of just
	fault-posix.h, and use stackvma-beos.c instead of stackvma-none.c.
	* NEWS: Mention the improvement.

2017-10-09  Bruno Haible  <bruno@clisp.org>

	Avoid build failures caused by parallel make.
	* Makefile.am (GNUMAKEFLAGS): New variable.

2017-10-08  Bruno Haible  <bruno@clisp.org>

	Make VMA detection more reliable on FreeBSD.
	* src/stackvma-vma-iter.c (vma_iterate_proc): Extracted from vma_iterate.
	(vma_iterate_bsd): New function.
	(vma_iterate): Call both, in the appropriate order.
	* src/stackvma-freebsd.c: Include <sys/user.h> and <sys/sysctl.h>.

2017-10-08  Bruno Haible  <bruno@clisp.org>

	Fix broken VMA detection on NetBSD (regression from 2017-10-07).
	* src/stackvma-rofile.c (MIN_LEFTOVER): Define to 1, not 0.

2017-10-07  Bruno Haible  <bruno@clisp.org>

	Fix broken VMA detection on Linux (regression from 2017-09-28).
	* src/stackvma-rofile.c (MIN_LEFTOVER): New macro.
	(STACK_ALLOCATED_BUFFER_SIZE): New macro.
	(rof_open): On Linux, do multiple read() calls and make sure
	MIN_LEFTOVER bytes are left when read() returns.

2017-10-06  Bruno Haible  <bruno@clisp.org>

	Fix definition of SIGSEGV_FAULT_ADDRESS_ALIGNMENT: don't break clisp.
	Existing versions of clisp expect that SIGSEGV_FAULT_ADDRESS_ALIGNMENT
	is a constant expression. We cannot include a variable reference or
	a function call in it.
	* src/sigsegv.h.in (SIGSEGV_FAULT_ADDRESS_ALIGNMENT): Define as a
	constant expression.
	* tests/sigsegv1.c (SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS): Define based
	on SIGSEGV_FAULT_ADDRESS_ALIGNMENT.
	(handler): Use it.
	* tests/sigsegv3.c: Likewise.

2017-10-05  Bruno Haible  <bruno@clisp.org>

	Fix support for NetBSD/sparc on SPARC64 machines.
	* src/sigsegv.h.in (SIGSEGV_FAULT_ADDRESS_ALIGNMENT) [NetBSD/sparc]:
	Use getpagesize().
	* m4/fault.m4 (SV_TRY_FAULT): On NetBSD/sparc, use getpagesize().

2017-10-03  Bruno Haible  <bruno@clisp.org>

	Add support for NetBSD/sparc.
	* src/sigsegv.h.in (SIGSEGV_FAULT_ADDRESS_ALIGNMENT) [NetBSD/sparc]:
	Define to 0x1000.
	* m4/fault.m4 (SV_TRY_FAULT): On NetBSD/sparc, set
	SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS like on Linux/s390.

2017-10-03  Bruno Haible  <bruno@clisp.org>

	Fix a message.
	* tests/sigsegv3.c (handler): Fix message.

2017-10-01  Bruno Haible  <bruno@clisp.org>

	Comment.
	* configure.ac: Add a comment about GNU/Hurd.

2017-09-29  Bruno Haible  <bruno@clisp.org>

	Make stack VMA detection work on GNU/kFreeBSD even without mincore.
	It needs to use the vma_iterate for Linux combined with the callback
	for FreeBSD.
	* src/stackvma-vma-iter.c: New file, extracted from
	src/stackvma-linux.c, src/stackvma-freebsd.c, src/stackvma-netbsd.c.
	* src/stackvma-linux.c: Include stackvma-vma-iter.c.
	(vma_iterate): Moved to src/stackvma-vma-iter.c.
	* src/stackvma-freebsd.c: Likewise.
	* src/stackvma-netbsd.c: Likewise.
	* src/Makefile.am (EXTRA_DIST): Add stackvma-vma-iter.c.
	* configure.ac (CFG_STACKVMA): Treat GNU/kFreeBSD like FreeBSD.

2017-09-28  Bruno Haible  <bruno@clisp.org>

	Make stack VMA detection code more maintainable.
	* src/stackvma-linux.c (struct callback_locals): New type.
	(callback): New function.
	(vma_iterate): New function, extracted from gnulib's lib/vma-iter.c.
	(sigsegv_get_vma): Use vma_iterate.
	* src/stackvma-freebsd.c: Likewise.
	* src/stackvma-netbsd.c: Likewise.
	* src/stackvma-beos.c: Likewise.
	* src/stackvma-procfs.c: Likewise.
	(sigsegv_get_vma_fallback): Inline and remove function.

2017-09-28  Bruno Haible  <bruno@clisp.org>

	Make stack VMA detection more reliable on Linux, FreeBSD, NetBSD.
	* src/stackvma-rofile.c (struct rofile, rof_open, rof_peekchar,
	rof_close): Read the entire file into memory in a single system call.
	* src/stackvma-linux.c (sigsegv_get_vma): Update.
	* src/stackvma-freebsd.c (sigsegv_get_vma): Likewise.
	* src/stackvma-netbsd.c (sigsegv_get_vma): Likewise.

2017-07-15  Bruno Haible  <bruno@clisp.org>

	Get rid of autom4te.cache directory (left over from autoconf, automake).
	* autogen.sh: Remove autom4te.cache directory.

2017-03-10  Bruno Haible  <bruno@clisp.org>

	Fix a comment.
	* src/stackvma-mincore.c: Update comment regarding Mac OS X.

2017-03-04  Bruno Haible  <bruno@clisp.org>

	Avoid use of glibc-internal macros.
	* src/fault-linux-arm.h: Use compiler-defined preprocessor macros,
	rather than __WORDSIZE.
	* src/fault-linux-powerpc.h: Likewise.
	* src/fault-linux-sparc.h: Likewise.
	* src/fault-linux-sparc-old.h: Likewise.
	Reported by Andreas Schwab <schwab@linux-m68k.org>.

2017-02-21  Bruno Haible  <bruno@clisp.org>

	Improve Hurd/i386 support.
	* src/fault-hurd-i386.h: New file.
	* src/Makefile.am (noinst_HEADERS): Add it.
	* configure.ac: Use it on Hurd/i386.
	* NEWS: Document the improvement.

2017-02-18  Bruno Haible  <bruno@clisp.org>

	Prepare for new release.
	* configure.ac: Bump version number to 2.11.
	* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
	* README: Likewise.
	* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): Bump to 2:4:0.
	* NEWS: Mention the <stdint.h> requirement.

2017-02-18  Bruno Haible  <bruno@clisp.org>

	Improve cross-compilation guesses.
	* configure.ac: Include results on kFreeBSD9.0.
	Treat FreeBSD >= 10 like FreeBSD 4 to 9.

2017-02-18  Bruno Haible  <bruno@clisp.org>

	On Solaris, prefer the newer /proc fs API to the older (deprecated) one.
	Reported by Roger Faulkner in
	http://savannah.gnu.org/bugs/?42187 .
	* configure.ac: Accept <sys/procfs.h> even if it does no longer define
	PIOCNMAP and PIOCMAP.
	* src/stackvma-procfs.c: Define _STRUCTURED_PROC before including
	<sys/procfs.h>.
	(sigsegv_get_vma_fallback): New function.
	(sigsegv_get_vma): If PIOCNMAP and PIOCMAP are no longer defined, use
	the newer /proc interface.

2017-02-18  Bruno Haible  <bruno@clisp.org>

	Override value of SIGSTKSZ on 64-bit AIX and on HP-UX.
	* src/sigsegv.h.in: On 64-bit AIX, set SIGSTKSZ to 8 KB.
	On HP-UX, set SIGSTKSZ to 16 KB.
	* NEWS: Document the improvement.

2017-02-18  Bruno Haible  <bruno@clisp.org>

	Improve Linux/aarch64 support.
	* src/fault-linux-arm.h: Add code for aarch64.
	* configure.ac: For aarch64 platforms, use fault-linux-arm.h.

2017-02-18  Bruno Haible  <bruno@clisp.org>

	Make stack overflow detection work on Linux/sparc.
	* src/fault-linux-sparc.h (SIGSEGV_FAULT_STACKPOINTER): Fix: ucp is a
	'struct sigcontext *', not an 'ucontext_t *'.
	(BOGUS_FAULT_ADDRESS_UPON_STACK_OVERFLOW): New macro.
	* src/handler-unix.c (sigsegv_handler): Handle the
	BOGUS_FAULT_ADDRESS_UPON_STACK_OVERFLOW case.
	Handle errno consistently.
	* NEWS: Document the improvement.

2017-02-18  Bruno Haible  <bruno@clisp.org>

	Fix glibc version determination.
	* configure.ac (glibcversion): Use postprocessing that works also with
	gcc 5 or newer.

2017-02-18  Bruno Haible  <bruno@clisp.org>

	Update comments.
	* src/fault-linux-*.h: Update references to the glibc sources.

2017-01-10  Bruno Haible  <bruno@clisp.org>

	Update README.
	* README: Prefer https URLs over http or ftp URLs.

2016-12-04  Bruno Haible  <bruno@clisp.org>

	Always use the newest released copies of files brought in from Automake.
	* autogen.sh: Make sure to get new versions of files brought in by
	automake.

2016-11-27  Bruno Haible  <bruno@clisp.org>

	Fix compilation error on Cygwin, regression from 2016-10-22.
	* src/sigsegv.h.in: Include <stddef.h>.

2016-11-23  Bruno Haible  <bruno@clisp.org>

	Update installation instructions for Windows.
	* README.windows: Assume a 64-bit Windows. Explain both 32-bit and
	64-bit builds. Revamp instructions for the MS Visual C/C++ tool chain
	and for Cygwin.

2016-11-23  Bruno Haible  <bruno@clisp.org>

	Drop the nickname "woe32".
	* README.windows: Renamed from README.woe32.
	* README: Update.
	* Makefile.am (EXTRA_DIST): Update.

2016-10-22  Bruno Haible  <bruno@clisp.org>

	Support for platforms with 32-bit 'long' and 64-bit pointers.
	* src/sigsegv.h.in: Use 'size_t' instead of 'unsigned long'.
	* src/stackvma.h: Include <stdint.h>. Use 'uintptr_t' instead of
	'unsigned long'.
	* src/stackvma-*.c: Use 'uintptr_t' instead of 'unsigned long'.
	* src/dispatcher.c: Include <stdint.h>. Use 'uintptr_t' or 'size_t'
	instead of 'unsigned long'.
	* src/handler-*.c: Likewise.
	* tests/mmaputil.h: Use 'uintptr_t' or 'size_t' instead of
	'unsigned long'.
	* tests/sigsegv1.c: Include <stdint.h>. Use 'uintptr_t' instead of
	'unsigned long'.
	* tests/sigsegv2.c: Likewise.
	* tests/sigsegv3.c: Likewise.
	* tests/stackoverflow2.c: Likewise.
	Reported by Nate Sigrist in <https://savannah.gnu.org/bugs/?37604>.

2016-10-22  Bruno Haible  <bruno@clisp.org>

	Switch to libtool 2.4.6.
	* m4/libtool.m4: Update from libtool-2.4.6.
	* m4/ltoptions.m4: Likewise.
	* m4/ltversion.m4: Likewise.
	* build-aux/ltmain.sh: Likewise.

2016-10-22  Bruno Haible  <bruno@clisp.org>

	Switch to automake 1.15.
	* autogen.sh: Update comment.
	* src/Makefile.am (AM_CPPFLAGS): Renamed from INCLUDES.
	* tests/Makefile.am (AM_CPPFLAGS): Renamed from INCLUDES.
	* build-aux/.gitignore: Ignore more files.

2015-12-03  Waldemar Brodkorb  <wbx@uclibc-ng.org>

	* src/fault-linux-sparc.h (SIGSEGV_FAULT_STACKPOINTER)
	<__WORDSIZE == 64>: New macro.

2014-12-30  Simon Dawson  <spdawson@gmail.com>  (tiny change)
            Will Newton  <will.newton@linaro.org>  (tiny change)
            Spenser Gilliland  <spenser@gillilanding.com>  (tiny change)
            Thomas Petazzoni  <thomas.petazzoni@free-electrons.com>  (tiny change)

	* m4/stack-direction.m4: Add stack direction info for various
	processors.

2012-09-09  Bruno Haible  <bruno@clisp.org>

	Support for OpenBSD 5.2 on m88k and sh processors.
	* src/fault-openbsd-m88k.h: Update for OpenBSD 5.2.
	* src/fault-openbsd-sh.h: Likewise.
	Reported by Brad Smith <brad@comstyle.com>
	at <https://savannah.gnu.org/bugs/?37288>.

2012-04-28  Bruno Haible  <bruno@clisp.org>

	Allow use of autoconf-2.69 and automake-1.12.
	* autogen.sh: Update comments.

2011-10-18  Bruno Haible  <bruno@clisp.org>

	* m4/libtool.m4: Update from libtool-2.4.2.
	* m4/ltoptions.m4: Likewise.
	* m4/ltversion.m4: Likewise.
	* build-aux/ltmain.sh: Likewise.

2011-09-30  Bruno Haible  <bruno@clisp.org>

	Update known platforms list.
	* configure.ac (POSIX): Add Linux/SPARC to the known platforms.

2011-09-30  Bruno Haible  <bruno@clisp.org>

	Work around an mprotect(...,PROT_READ) bug on Linux 2.6.26/SPARC64.
	* m4/fault.m4 (SV_TRY_FAULT): On Linux/SPARC, use PROT_NONE instead of
	PROT_READ.
	* tests/sigsegv1.c (main): Likewise.
	* tests/sigsegv2.c (main): Likewise.
	* tests/sigsegv3.c (main): Likewise.
	* tests/stackoverflow2.c (main): Likewise.

2011-09-10  Bruno Haible  <bruno@clisp.org>

	Adhere to Win32 API.
	* src/handler-win32.c (main_exception_filter): Use
	EXCEPTION_STACK_OVERFLOW, not STATUS_STACK_OVERFLOW.

2011-05-03  Eric Blake  <eblake@redhat.com>

	Avoid polluting cygwin namespace.
	* configure.ac (FAULT_CONTEXT_INCLUDE): Avoid including
	<windows.h> on cygwin.
	Reported by Corinna Vinschen, via Aharon Robbins.

2011-04-03  Bruno Haible  <bruno@clisp.org>

	* Version 2.10 released.

2011-04-03  Bruno Haible  <bruno@clisp.org>

	Don't ask for success reports on MacOS X any more.
	* Makefile.am (check-next): No longer ask for success reports on
	MacOS X.

2011-04-03  Bruno Haible  <bruno@clisp.org>

	Bump version number.
	* configure.ac: Bump version number to 2.10.
	* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
	* README: Likewise. Recommend ftpmirror.gnu.org in the first place.
	* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): Bump to 2:3:0.

2011-03-13  Bruno Haible  <bruno@clisp.org>

	Support for Linux/S390.
	* m4/fault.m4 (SV_TRY_FAULT): Define
	SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS. On Linux/S390 systems, expect a
	page-aligned fault address.
	* src/sigsegv.h.in (SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS): New macro.
	(sigsegv_register): Mention constraint about address and len arguments.
	* tests/sigsegv1.c (handler): On Linux/S390 systems, expect a
	page-aligned fault address.
	* tests/sigsegv3.c (handler): Likewise.
	* tests/sigsegv2.c: Add comment.
	* NEWS: Document the change.
	Reported by Christoph Egger <christoph@debian.org>.

2011-01-29  Bruno Haible  <bruno@clisp.org>

	Improve OpenBSD support: Allow faster VMA determination.
	* configure.ac: Check also for mquery.
	(CFG_STACKVMA): Set to stackvma-mquery.c if mquery() exists.
	* src/stackvma-mquery.c: New file.
	* src/Makefile.am (EXTRA_DIST): Add it.
	* NEWS: Document the improvement.

2011-01-23  Bruno Haible  <bruno@clisp.org>

	Improve NetBSD support: Allow VMA determination with fewer system calls.
	* src/stackvma-netbsd.c: New file, based on src/stackvma-freebsd.c.
	* src/stackvma-freebsd.c: Add comment.
	* src/Makefile.am (EXTRA_DIST): Add stackvma-netbsd.c.
	* configure.ac (CFG_STACKVMA): Set to stackvma-netbsd.c on NetBSD.

2010-11-06  Bruno Haible  <bruno@clisp.org>

	* Version 2.9 released.

2010-11-06  Bruno Haible  <bruno@clisp.org>

	Bump version number.
	* configure.ac: Bump version number to 2.9.
	* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
	* README: Likewise.
	* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): Bump to 2:2:0.

2010-11-06  Bruno Haible  <bruno@clisp.org>

	Start to use gnulib.
	* autogen.sh: New option --skip-gnulib. Fetch gnulib if GNULIB_TOOL is
	not set. Import m4/relocatable-lib.m4.
	* configure.ac: Invoke gl_RELOCATABLE_NOP instead of
	AC_RELOCATABLE_NOP.
	* m4/relocatable.m4: Remove file.

2010-11-06  Bruno Haible  <bruno@clisp.org>

	Modernize autoconf macro style.
	* configure.ac: Surround all macro arguments in brackets.
	* m4/getpagesize.m4: Likewise.
	* m4/mmap-anon.m4: Likewise.
	* m4/sigaltstack.m4: Likewise.

2010-11-06  Bruno Haible  <bruno@clisp.org>

	Don't list files in .gitignore that are absent after "make distclean".
	* .gitignore: Complete the list of files that are created by "make" and
	removed by "make distclean". But comment them out, since they belong in
	.git/info/exclude. Also remove /autom4te.cache because "make distclean"
	does not remove it.

2010-10-25  Eric Blake  <eblake@redhat.com>

	Fix powerpc64-unknown-linux-gnu implementation.
	* src/stackvma-rofile.c (struct rofile): Reduce size, to avoid
	overflowing alternate stack when compiled under -O2.
	* src/stackvma-mincore.c (mapped_range_start, mapped_range_end):
	Likewise.
	* NEWS: Document the fix.

2010-10-24  Eric Blake  <eblake@redhat.com>
            Bruno Haible  <bruno@clisp.org>

	Enhance the tests to detect overflow of the alternate stack.
	* tests/altstack.h: New file.
	* tests/Makefile.am (EXTRA_DIST): Add altstack.h.
	* configure.ac: Invoke AC_TYPE_UINTPTR_T.
	* tests/stackoverflow1.c: Include altstack.h.
	(SIGSTKSZ): Remove definition.
	(mystack): Remove definition.
	(main): Invoke prepare_alternate_stack and
	check_alternate_stack_no_overflow.
	* tests/stackoverflow2.c: Likewise.
	* tests/efault2.c: Likewise.
	* tests/efault3.c: Likewise.

2010-10-21  Eric Blake  <eblake@redhat.com>

	* .gitignore: Ignore more files.

2010-09-23  Bruno Haible  <bruno@clisp.org>

	* m4/libtool.m4: Update from libtool-2.4.
	* m4/ltversion.m4: Likewise.
	* build-aux/ltmain.sh: Likewise.

2010-06-04  Bruno Haible  <bruno@clisp.org>

	* m4/libtool.m4: Update from libtool-2.2.8.
	* m4/ltoptions.m4: Likewise.
	* m4/ltversion.m4: Likewise.
	* m4/lt~obsolete.m4: Likewise.
	* build-aux/ltmain.sh: Likewise.

2010-04-06  Eric Blake  <eblake@redhat.com>

	* AUTHORS: Add myself.

2010-03-30  Bruno Haible  <bruno@clisp.org>

	* README.woe32: Update for Cygwin 1.7.x.

2010-02-18  Bruno Haible  <bruno@clisp.org>

	Fix 64-bit builds with --enable-shared on MacOS X.
	* src/stackvma-mach.c (sigsegv_get_vma): On 64-bit MacOS X, use
	vm_region_64 instead of vm_region.
	* NEWS: Mention the fix.
	Reported by Rudá Moura <ruda@rudix.org>.

2010-01-31  Bruno Haible  <bruno@clisp.org>

	* README: Add more homepage links. Add bug report address.

2010-01-07  Bruno Haible  <bruno@clisp.org>

	Improve support for OpenBSD.
	* src/fault-openbsd-i386.h (SIGSEGV_FAULT_STACKPOINTER): Define
	differently in 64-bit mode.
	* src/fault-openbsd-alpha.h: New file.
	* src/fault-openbsd-arm.h: New file.
	* src/fault-openbsd-hppa.h: New file.
	* src/fault-openbsd-m68k.h: New file.
	* src/fault-openbsd-m88k.h: New file.
	* src/fault-openbsd-mips.h: New file.
	* src/fault-openbsd-powerpc.h: New file.
	* src/fault-openbsd-sh.h: New file.
	* src/fault-openbsd-sparc.h: New file.
	* src/fault-openbsd-vax.h: New file.
	* src/Makefile.am (noinst_HEADERS): Add the new files.
	* configure.ac (CFG_FAULT): Use these files on OpenBSD.
	Reported by Paul Irofti <bulibuta@sdf.lonestar.org>.

2009-12-11  Bruno Haible  <bruno@clisp.org>

	* Version 2.8 released.

2009-12-11  Bruno Haible  <bruno@clisp.org>

	* configure.ac: Bump version number to 2.8.
	* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
	* README: Likewise.
	* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): Bump to 2:1:0.

2009-12-11  Bruno Haible  <bruno@clisp.org>

	Remove configuration option --enable-EFAULT.
	* configure.ac (enable_EFAULT): Set to yes on Cygwin, to no otherwise.
	* README, NEWS: Don't mention --enable-EFAULT.
	Reported by Eric Blake.

2009-12-11  Bruno Haible  <bruno@clisp.org>

	New test for Cygwin.
	* tests/cygwin1.c: New file, based on code by Eric Blake.
	* tests/Makefile.am (TESTS, noinst_PROGRAMS): Add it.
	* configure.ac (CYGWIN): New conditional.

2009-11-21  Eric Blake  <ebb9@byu.net>
            Bruno Haible  <bruno@clisp.org>

	New configuration option --enable-EFAULT.
	* configure.ac: Accept option --enable-EFAULT. Set and define
	ENABLE_EFAULT. Invoke SV_SYSCALLS_EFAULT.
	For Cygwin, use the CFG_FAULT that was already determined, or
	fault-cygwin-old.h if none. In the latter case, define
	OLD_CYGWIN_WORKAROUND.
	* m4/efault.m4: New file.
	* src/handler-win32.c [CYGWIN && ENABLE_EFAULT]: Include
	handler-unix.c.
	(MIXING_UNIX_SIGSEGV_AND_WIN32_STACKOVERFLOW_HANDLING): New macro.
	(last_seen_fault_address): New variable.
	(main_exception_filter): Store the fault address for the Unix signal
	handler.
	(sigsegv_install_handler): Redefine.
	(sigsegv_deinstall_handler, sigsegv_leave_handler): Don't define.
	* src/handler-unix.c (stackoverflow_install_handler,
	stackoverflow_deinstall_handler): Don't define if
	MIXING_UNIX_SIGSEGV_AND_WIN32_STACKOVERFLOW_HANDLING is set.
	* src/fault-cygwin-old.h: New file.
	* src/Makefile.am (noinst_HEADERS): Add it.
	* tests/efault1.c: New file.
	* tests/efault2.c: New file.
	* tests/efault3.c: New file.
	* tests/Makefile.am (TESTS, noinst_PROGRAMS): Add efault1, efault2,
	efault3.
	* README, NEWS: Mention the new option.

2009-11-21  Bruno Haible  <bruno@clisp.org>

	Support for Cygwin 1.7.
	* configure.ac: For Cygwin and mingw, choose FAULT_CONTEXT in a way
	that is consistent with CFD_HANDLER.
	Reported by Eric Blake <ebb9@byu.net>

2009-11-21  Bruno Haible  <bruno@clisp.org>

	* configure.ac: Add comments and structure.

2009-11-21  Bruno Haible  <bruno@clisp.org>

	Reduce size of configure.ac.
	* m4/stack-direction.m4: New file, extracted from configure.ac.
	* configure.ac: Simply invoke SV_STACK_DIRECTION.

2009-11-21  Eric Blake  <ebb9@byu.net>
            Bruno Haible  <bruno@clisp.org>

	Avoid a gcc warning.
	* src/handler-win32.c (debug_get_except_list): Mark as unused.

2009-11-21  Bruno Haible  <bruno@clisp.org>

	Fix compilation error on newer versions of HP-UX 11.31 on ia64.
	* configure.ac: Set sv_cv_have_stack_overflow_recovery to 'no' if it is
	not possible to longjmp out of the signal handler. On HP-UX 11.31 on
	ia64 it is only possible with siglongjmp (as far as we know).
	Reported by Bill Glessner <bill.glessner@cwu.edu>.

	* configure.ac: Move determination of CFG_LEAVE before the
	determination of sv_cv_have_stack_overflow_recovery.

2009-10-17  Bruno Haible  <bruno@clisp.org>

	* README: Mention danger of longjmping back to a central point.
	Reported by Angelo Borsotti <angelo.borsotti@gmail.com>.

2009-09-22  Paolo Bonzini  <bonzini@gnu.org>

	Move more declarations of alternate stacks to global scope.
	* m4/sigaltstack-longjmp.m4: Make mystack global.
	* m4/sigaltstack-siglongjmp.m4: Make mystack global.
	* m4/sigaltstack.m4: Make mystack global.

2009-09-22  Paolo Bonzini  <bonzini@gnu.org>

	Fix crash of stackoverflow2 on x86_64-linux.
	* tests/stackoverflow1.c: Make mystack global.
	* tests/stackoverflow2.c: Likewise.
	* src/sigsegv.h.in: Warn against placing the alternate stack
	on the main stack.

2009-08-16  Bruno Haible  <bruno@clisp.org>

	Avoid a gcc warning on Solaris.
	* src/stackvma-procfs.c: Include <string.h>.

2009-08-14  Bruno Haible  <bruno@clisp.org>

	Remove config.guess, config.sub from from version control.
	* autogen.sh: Fetch config.guess, config.sub.
	* build-aux/config.guess: Remove file.
	* build-aux/config.sub: Remove file.

2009-08-14  Bruno Haible  <bruno@clisp.org>

	Remove autogenerated files from version control.
	* autogen.sh: New file.
	* aclocal.m4: Remove file.
	* configure: Remove file.
	* config.h.in: Remove file.
	* Makefile.in: Remove file.
	* src/Makefile.in: Remove file.
	* tests/Makefile.in: Remove file.
	* build-aux/install-sh: Remove file.
	* build-aux/missing: Remove file.
	* config.h.msvc: Remove file.
	* src/sigsegv.h.msvc: Remove file.

2009-08-14  Bruno Haible  <bruno@clisp.org>

	Override automake's tar command used for creating distributions.
	* configure.ac (am__tar): New variable.

2009-08-09  Bruno Haible  <bruno@clisp.org>

	* Version 2.7 released.

2009-08-09  Bruno Haible  <bruno@clisp.org>

	* configure.ac: Bump version number to 2.7.
	* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
	* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): Bump to 2:0:0.

2009-08-09  Bruno Haible  <bruno@clisp.org>

	* src/fault-linux-powerpc.h (SIGSEGV_FAULT_STACKPOINTER): Fix mistake.

2009-08-09  Bruno Haible  <bruno@clisp.org>

	Avoid warnings on glibc systems.
	* src/stackvma-mincore.c (pageinfo_t): New type.
	(is_mapped, mapped_range_start, mapped_range_end): Use it.

2009-08-01  Bruno Haible  <bruno@clisp.org>

	Prefer the POSIX way over the traditional one, on Linux.
	* configure.ac: Use the traditional Linux way only if the POSIX way
	does not work.
	* NEWS: Mention the change.

2009-08-01  Bruno Haible  <bruno@clisp.org>

	Add knowledge where to find the stack pointer on Linux platforms.
	* src/fault-linux-alpha.h: New file.
	* src/fault-linux-arm.h: New file.
	* src/fault-linux-cris.h: New file.
	* src/fault-linux-hppa.h: New file.
	* src/fault-linux-i386.h: New file.
	* src/fault-linux-ia64.h: New file.
	* src/fault-linux-m68k.h: New file.
	* src/fault-linux-mips.h: New file.
	* src/fault-linux-powerpc.h: New file.
	* src/fault-linux-s390.h: New file.
	* src/fault-linux-sh.h: New file.
	* src/fault-linux-sparc.h: New file.
	* src/Makefile.am (noinst_HEADERS): Add them.
	* src/handler-unix.c (_GNU_SOURCE): Define.
	* src/fault-linux-hppa-old.h: Add alternative code, commented.
	* src/fault-linux-sparc-old.h: Likewise.
	* configure.ac (CFG_FAULT): Use these files on Linux when the POSIX way
	of catching page faults works.

2009-08-01  Bruno Haible  <bruno@clisp.org>

	* src/fault-linux-i386-old.h: Renamed from src/fault-linux-i386.h.
	* src/Makefile.am (noinst_HEADERS): Update.
	* configure.ac: Update.

	* src/fault-linux-i386-oldold.h: Renamed from
	src/fault-linux-i386-old.h.
	* src/Makefile.am (noinst_HEADERS): Update.
	* configure.ac: Update.

	* src/fault-linux-alpha-old.h: Renamed from src/fault-linux-alpha.h.
	* src/fault-linux-arm-old.h: Renamed from src/fault-linux-arm.h.
	* src/fault-linux-cris-old.h: Renamed from src/fault-linux-cris.h.
	* src/fault-linux-hppa-old.h: Renamed from src/fault-linux-hppa.h.
	* src/fault-linux-ia64-old.h: Renamed from src/fault-linux-ia64.h.
	* src/fault-linux-m68k-old.c: Renamed from src/fault-linux-m68k.c.
	* src/fault-linux-m68k-old.h: Renamed from src/fault-linux-m68k.h.
	Update.
	* src/fault-linux-mips-old.h: Renamed from src/fault-linux-mips.h.
	* src/fault-linux-powerpc-old.h: Renamed from src/fault-linux-powerpc.h.
	* src/fault-linux-s390-old.h: Renamed from src/fault-linux-s390.h.
	* src/fault-linux-sh-old.h: Renamed from src/fault-linux-sh.h.
	* src/fault-linux-sparc-old.h: Renamed from src/fault-linux-sparc.h.
	* src/fault-linux-x86_64-old.h: Renamed from src/fault-linux-x86_64.h.
	* src/Makefile.am (noinst_HEADERS): Update.
	* configure.ac: Update.

2009-06-23  Bruno Haible  <bruno@clisp.org>

	* Makefile.am (check-next): No longer ask for copies of config.log.

2009-06-23  Bruno Haible  <bruno@clisp.org>

	Improve support for MirBSD 10.
	* configure.ac (CFG_FAULT, FAULT_CONTEXT): Treat MirBSD/i386 like
	OpenBSD/i386.

2009-06-23  Bruno Haible  <bruno@clisp.org>

	Add support for platforms that follow POSIX:2008, not POSIX:2001.
	* configure.ac (POSIX): Add MirBSD to known list.
	(CFG_FAULT, FAULT_CONTEXT, FAULT_CONTEXT_INCLUDE): Define appropriately
	when <ucontext.h> does not exist.
	* src/fault-posix-ucontext.h: Renamed from src/fault-posix.h.
	* src/fault-posix.h: New file.
	* src/fault-aix5.h: Update.
	* src/fault-hpux-hppa.h: Update.
	* src/fault-netbsd.h: Update.
	* src/fault-solaris.h: Update.
	* src/Makefile.am (noinst_HEADERS): Add fault-posix-ucontext.h.

2009-06-23  Bruno Haible  <bruno@clisp.org>

	* configure.ac (FAULT_CONTEXT_INCLUDE): Reinstall the AC_SUBST
	invocation.

2009-05-21  Bruno Haible  <bruno@clisp.org>

	* configure.ac (FAULT_CONTEXT_INCLUDE): Don't substitute into
	Makefiles.

2009-05-21  Bruno Haible  <bruno@clisp.org>

	* tests/Makefile.am (AUTOMAKE_OPTIONS): Assume automake >= 1.11.
	Use color-tests option.

2009-01-14  Bruno Haible  <bruno@clisp.org>

	* configure.ac: More consistent m4 quoting.

2008-09-27  Bruno Haible  <bruno@clisp.org>

	* build-aux/config.sub: Update to GNU version 2008-09-08.

2008-09-23  Eric Blake  <ebb9@byu.net>

	Use 2 * SIGSTKSZ consistently in configuration checks.
	* m4/sigaltstack.m4 (SV_SIGALTSTACK): Work around IRIX sigaltstack bug.
	* m4/sigaltstack-longjmp.m4 (SV_TRY_LEAVE_HANDLER_LONGJMP): Likewise.
	* m4/sigaltstack-siglongjmp.m4 (SV_TRY_LEAVE_HANDLER_SIGLONGJMP):
	Likewise.

2008-09-21  Bruno Haible  <bruno@clisp.org>

	* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): New variable.
	(libsigsegv_la_LDFLAGS): Pass -rpath and -version-info option.
	Reported by Thomas Klausner <tk@giga.or.at>.

2008-09-21  Eric Blake  <ebb9@byu.net>
            Bruno Haible  <bruno@clisp.org>

	Detect and work around bug in Irix 5.3 sigaltstack.
	* m4/sigaltstack.m4 (SV_SIGALTSTACK): Test for broken stack_t direction
	in sigaltstack.
	* src/handler-unix.c (stackoverflow_install_handler): Adjust stack
	accordingly.
	* tests/stackoverflow1.c (stack_lower_bound, stack_upper_bound): New
	variables.
	(stackoverflow_handler): Use them to expose IRIX bug.
	(main): Initialize them.

2008-09-07  Bruno Haible  <bruno@clisp.org>

	* m4/libtool.m4: Update from libtool-2.2.6.
	* m4/ltoptions.m4: Likewise.
	* m4/ltsugar.m4: Likewise.
	* m4/ltversion.m4: Likewise.
	* build-aux/ltmain.sh: Likewise.

2008-08-25  Bruno Haible  <bruno@clisp.org>

	* Version 2.6 released.

2008-08-24  Bruno Haible  <bruno@clisp.org>

	* configure.ac: Treat Dragonfly BSD platforms like FreeBSD.
	Reported by Thomas Klausner <tk@giga.or.at>.

2008-08-24  Bruno Haible  <bruno@clisp.org>

	* src/stackvma-mincore.c (mincore_is_near_this): Improve logic. Needed
	for reliable NULL pointer access classification as SIGSEGV on AIX 4.3.

2008-08-24  Bruno Haible  <bruno@clisp.org>

	* m4/sigaltstack.m4: Change 'volatile int' return type to 'int'. Needed
	for AIX 4.3 xlc.
	* m4/sigaltstack-longjmp.m4: Likewise.
	* m4/sigaltstack-siglongjmp.m4: Likewise.
	* tests/stackoverflow1.c (recurse): Likewise.
	* tests/stackoverflow2.c (recurse): Likewise.

2008-08-24  Bruno Haible  <bruno@clisp.org>

	* tests/sigsegv1.c: Include <config.h>.
	* tests/sigsegv2.c: Likewise.
	* tests/sigsegv3.c: Include <config.h> before all other headers.
	* tests/stackoverflow1.c: Likewise.
	* tests/stackoverflow2.c: Likewise.

2008-08-24  Bruno Haible  <bruno@clisp.org>

	Fix the sigsegv3 test on MacOS X.
	* src/sigsegv.h.in (sigsegv_leave_handler): Take 4 arguments.
	* NEWS: Mention the change.
	* src/handler-macos.c (our_exception_thread, signalled_thread): New
	variables.
	(catch_exception_raise): Set signalled_thread during the user_handler
	invocation.
	(mach_exception_thread): Initialize our_exception_thread.
	(sigsegv_leave_handler): Take 4 arguments. When called from within
	the exception thread, let the signalled thread do a hyperjump.
	* src/handler-unix.c (sigsegv_leave_handler): Take 4 arguments.
	* src/handler-win32.c (sigsegv_leave_handler): Likewise.
	* src/handler-none.c (sigsegv_leave_handler): Likewise.
	* src/machfault-macos.h (SIGSEGV_INTEGER_ARGUMENT_1,
	SIGSEGV_INTEGER_ARGUMENT_2, SIGSEGV_INTEGER_ARGUMENT_3,
	SIGSEGV_FRAME_POINTER): New macros.
	* tests/sigsegv3.c (handler_continuation): New function.
	(handler): Update to new API.
	* tests/stackoverflow1.c (stackoverflow_handler_continuation): New
	function.
	(stackoverflow_handler): Update to new API.
	* tests/stackoverflow2.c (stackoverflow_handler_continuation): New
	function.
	(stackoverflow_handler, sigsegv_handler): Update to new API.

2008-08-24  Bruno Haible  <bruno@clisp.org>

	Test the use of sigsegv_leave_handler from within a SIGSEGV handler.
	* tests/sigsegv3.c: New file.
	* tests/Makefile.am (TESTS, noinst_PROGRAMS): Add sigsegv3.

2008-08-23  Eric Blake  <ebb9@byu.net>

	* src/Makefile.am (noinst_HEADERS): Remove machfault-macos-powerpc.h
	and machfault-macos-i386.h. Add machfault-macos.h.

2008-08-17  Bruno Haible  <bruno@clisp.org>

	Allow building universal binaries on MacOS X.
	* src/machfault-macos.h: New file, combining
	src/machfault-macos-powerpc.h and src/machfault-macos-i386.h.
	* src/machfault-macos-powerpc.h: Remove file.
	* src/machfault-macos-i386.h: Remove file.
	* configure.ac (CFG_MACHFAULT): Set to machfault-macos.h.
	(FAULT_CONTEXT_INCLUDE) [MacOSX]: Set to #ifdefs for all four possible
	architectures.

2008-07-20  Bruno Haible  <bruno@clisp.org>

	Make sigsegv_get_vma async-safe.
	* src/sigsegv.h.in (sigsegv_handler_t, stackoverflow_handler_t):
	Mention async-safety constraints.
	+ src/stackvma-rofile.c: New file.
	* src/stackvma-freebsd.c: Include stackvma-rofile.c.
	(sigsegv_get_vma): Use struct rofile instead of FILE.
	* src/stackvma-linux.c: Include stackvma-rofile.c.
	(sigsegv_get_vma): Use struct rofile instead of FILE.
	* src/stackvma-procfs.c: Include <sys/mman.h> instead of <stdlib.h> and
	<stdio.h>.
	(sigsegv_get_vma): Avoid using sprintf. Ensure pagesize is initialized.
	Use mmap/munmap instead of malloc/free.
	* src/Makefile.am (EXTRA_DIST): Add stackvma-rofile.c.
	Reported by Eric Blake <ebb9@byu.net>.

2008-07-20  Bruno Haible  <bruno@clisp.org>

	* src/handler-unix.c (sigsegv_handler): Preserve errno.

2008-07-20  Eric Blake  <ebb9@byu.net>

	* src/stackvma-mincore.c (mincore_is_near_this): Fix logic.

2008-07-20  Bruno Haible  <bruno@clisp.org>

	* tests/stackoverflow2.c (main): Test also a NULL pointer access.
	Reported by Eric Blake <ebb9@byu.net>.

2008-06-23  Bruno Haible  <bruno@clisp.org>

	* build-aux/config.guess: Update to GNU version 2008-06-16.
	* build-aux/config.sub: Likewise.

2008-05-31  Bruno Haible  <bruno@clisp.org>

	Make cross-compile from MacOS X 10.5 to MacOS X 10.4 work.
	* src/handler-macos.c (MacOS_X_10_5_HEADERS): New macro.
	* src/machfault-macos-i386.h: Use it.
	* src/machfault-macos-powerpc.h: Likewise.
	Reported by Dr Tomaž Slivnik <slivnik@tomaz.name>.

2008-05-31  Bruno Haible  <bruno@clisp.org>

	* m4/mmap-anon.m4 (SV_MMAP_ANON): Add known cross-compile results for
	MacOS X.
	Reported by Dr Tomaž Slivnik <slivnik@tomaz.name>.

2008-05-27  Bruno Haible  <bruno@clisp.org>

	* configure.ac: Require at least autoconf 2.62. Merge
	FAULT_CONTEXT_INCLUDE2 variable into FAULT_CONTEXT_INCLUDE.
	* src/sigsegv.h.in: Remove FAULT_CONTEXT_INCLUDE2 substitution.
	* src/Makefile.am (sigsegv.h.msvc): Update.

2008-05-27  Bruno Haible  <bruno@clisp.org>

	* configure.ac: Bump version number to 2.6.
	* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.

2008-05-27  Bruno Haible  <bruno@clisp.org>

	Support for 64-bit mode on MacOS X 10.5.
	* src/handler-macos.c (catch_exception_raise): Align the stack pointer
	also on x86_64. Needed for MMX instructions.
	* src/machfault-macos-i386.h: Choose among 64-bit and 32-bit flavours.
	Use new names for the 32-bit flavour when possible.
	* src/machfault-macos-powerpc.h: Choose among 64-bit and 32-bit
	flavours.
	* configure.ac (FAULT_CONTEXT, FAULT_CONTEXT_INCLUDE2): Choose
	right flavour (ppc_thread_state_t/ppc_thread_state64_t or
	i386_thread_state_t/x86_thread_state32_t/x86_thread_state64_t) at
	compile time.

2008-05-18  Bruno Haible  <bruno@clisp.org>

	* m4/libtool.m4: Update from libtool-2.2.4.
	* m4/ltoptions.m4: Likewise.
	* m4/ltversion.m4: Likewise.
	* m4/lt~obsolete.m4: Likewise.
	* build-aux/ltmain.sh: Likewise.

2008-04-06  Bruno Haible  <bruno@clisp.org>

	* m4/libtool.m4: Update from libtool-2.2.2.
	* m4/ltoptions.m4: New file, from libtool-2.2.2.
	* m4/ltsugar.m4: New file, from libtool-2.2.2.
	* m4/ltversion.m4: New file, from libtool-2.2.2.
	* m4/lt~obsolete.m4: New file, from libtool-2.2.2.
	* build-aux/ltmain.sh: New file, from libtool-2.2.2.
	* configure.ac: Use LT_INIT instead of AC_PROG_LIBTOOL.

2007-11-16  Bruno Haible  <bruno@clisp.org>

	* src/fault-freebsd-i386.h (SIGSEGV_FAULT_STACKPOINTER): Use sc_rsp
	also on x86_64-freebsd platform.
	Reported by Dmitri Hrapof <hrapof@common-lisp.ru> and
	Petr Salinger <Petr.Salinger@seznam.cz>.

2007-11-15  Bruno Haible  <bruno@clisp.org>

	* configure.ac (CFG_SIGNALS, CFG_FAULT): Port to i586-kfreebsd-gnu
	and x86_64-kfreebsd-gnu.
	* src/fault-freebsd-i386.h (SIGSEGV_FAULT_STACKPOINTER): Likewise.
	Based on patch by Petr Salinger <Petr.Salinger@seznam.cz>.

2007-11-11  Bruno Haible  <bruno@clisp.org>

	* Version 2.5 released.

2007-11-11  Bruno Haible  <bruno@clisp.org>

	* configure.ac: Bump version number to 2.5.
	* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.

2007-10-28  Bruno Haible  <bruno@clisp.org>

	* src/handler-macos.c (catch_exception_raise): Align the new stack
	pointer on a 16-byte boundary.
	* src/handler-win32.c (main_exception_filter): Correct alignment:
	%esp must be aligned to == -4 mod 16 upon function entry.

2007-10-28  Bruno Haible  <bruno@clisp.org>

	* src/sigsegv.h.in (stackoverflow_install_handler): Avoid comment
	inside comment.
	Reported by Chris Willmore <willmc@rpi.edu>.

2007-10-28  Bruno Haible  <bruno@clisp.org>

	* src/machfault-macos-powerpc.h (SIGSEGV_FAULT_ADDRESS,
	SIGSEGV_STACK_POINTER, SIGSEGV_PROGRAM_COUNTER): Add __DARWIN_UNIX03
	conditional.
	* src/machfault-macos-i386.h (SIGSEGV_FAULT_ADDRESS,
	SIGSEGV_STACK_POINTER, SIGSEGV_PROGRAM_COUNTER): Likewise.
	* src/fault-macosdarwin7-powerpc.h (SIGSEGV_FAULT_STACKPOINTER):
	Likewise.
	* src/fault-macosdarwin7-powerpc.c (get_fault_addr): Likewise.
	Reported by Chris Willmore <willmc@rpi.edu>.

2007-01-12  Bruno Haible  <bruno@clisp.org>

	* Makefile.am (check-next): Don't ask for reports from x86_64-*-linux*
	platforms.

2006-07-14  Bruno Haible  <bruno@clisp.org>

	* m4/sigaltstack.m4 (SV_SIGALTSTACK): Use SIGSTKSZ instead of
	hardcoding 16384.
	* m4/sigaltstack-longjmp.m4 (SV_TRY_LEAVE_HANDLER_LONGJMP): Likewise.
	* m4/sigaltstack-siglongjmp.m4 (SV_TRY_LEAVE_HANDLER_SIGLONGJMP):
	Likewise.
	* tests/stackoverflow1.c (main): Likewise.
	* tests/stackoverflow2.c (main): Likewise.
	* src/sigsegv.h.in (stackoverflow_install_handler): Update
	recommendation for extra_stack_size.
	Needed for ia64.
	Reported by Peter Van Eynde <pvaneynd@users.sourceforge.net>.

2006-06-23  Bruno Haible  <bruno@clisp.org>

	* Version 2.4 released.

2006-06-23  Bruno Haible  <bruno@clisp.org>

	* configure.ac: Bump version number to 2.4.
	* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.

2006-06-17  Bruno Haible  <bruno@clisp.org>

	* src/Makefile.am (noinst_HEADERS): Add fault-netbsd.h.

2006-06-17  Bruno Haible  <bruno@clisp.org>

	* m4/sigaltstack.m4: Insert 'volatile' and pass a pointer, to defeat
	GCC 4 optimizations.
	* m4/sigaltstack-longjmp.m4: Likewise.
	* m4/sigaltstack-siglongjmp.m4: Likewise.

2006-06-17  Bruno Haible  <bruno@clisp.org>

	* tests/stackoverflow1.c (recurse): Remove useless cast.
	* tests/stackoverflow2.c (recurse): Likewise.

2006-06-17  Bruno Haible  <bruno@clisp.org>

	* src/stackvma-freebsd.c (sigsegv_get_vma): Test whether mincore()
	works as expected before using it.

2006-03-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* m4/libtool.m4 (_LT_SYS_DYNAMIC_LINKER) [ linux ]: Avoid warning when
	"parsing" /etc/ld.so.conf and empty /etc/ld.so.conf.d.

2006-06-13  Bruno Haible  <bruno@clisp.org>

	Make NetBSD/i386 stack overflow detection work even without mincore.
	* src/fault-netbsd.h: New file.
	* configure.ac (CFG_FAULT): Choose it when appropriate.

2006-05-16  Bruno Haible  <bruno@clisp.org>

	Don't allow the compiler to reorder instructions in the tests.
	* tests/sigsegv1.c (crashes): Use volatile in pointer access.
	* tests/sigsegv2.c (main): Likewise.
	* tests/stackoverflow2.c (main): Likewise.

2006-05-14  Bruno Haible  <bruno@clisp.org>

	Exploit the mincore() system call where available.
	* src/stackvma-mincore.c: New file.
	* src/Makefile.am (EXTRA_DIST): Add it.
	* src/stackvma.h: Add double-inclusion guard.
	* src/stackvma-freebsd.c: If mincore() is available, include also
	stackvma-mincore.c.
	(sigsegv_get_vma): If mincore() is available, use it as fallback.
	* src/stackvma-linux.c: If mincore() is available, include also
	stackvma-mincore.c.
	(sigsegv_get_vma): If mincore() is available, use it as fallback.
	* src/stackvma-procfs.c: If mincore() is available, include also
	stackvma-mincore.c.
	(sigsegv_get_vma): If mincore() is available, use it as fallback.
	* configure.ac: Test for mincore.
	(CFG_STACKVMA): Set to stackvma-mincore.c if nothing else is available.

2006-05-14  Bruno Haible  <bruno@clisp.org>

	* src/stackvma-simple.c: New file, extracted from handler-unix.c.
	* src/Makefile.am (EXTRA_DIST): Add it.
	* src/stackvma-beos.c: Include stackvma-simple.c.
	(sigsegv_get_vma): Fill the vma's is_near_this field.
	* src/stackvma-freebsd.c: Include stackvma-simple.c.
	(sigsegv_get_vma): Fill the vma's is_near_this field.
	* src/stackvma-linux.c: Include stackvma-simple.c.
	(sigsegv_get_vma): Fill the vma's is_near_this field.
	* src/stackvma-mach.c: Include stackvma-simple.c.
	(sigsegv_get_vma): Fill the vma's is_near_this field.
	* src/stackvma-procfs.c: Include stackvma-simple.c.
	(sigsegv_get_vma): Fill the vma's is_near_this field.
	* src/stackvma.h (vma_struct): Add is_near_this field.
	* src/handler-unix.c (sigsegv_handler): Use the vma's is_near_this
	function.

2006-04-28  Bruno Haible  <bruno@clisp.org>

	* Version 2.3 released.

2006-04-28  Bruno Haible  <bruno@clisp.org>

	* configure.ac: Bump version number to 2.3.
	* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.

	* build-aux/config.guess, build-aux/config.sub: Update to GNU version
	2006-04-26.

	* build-aux/install-sh: Update from automake-1.9.6.
	* build-aux/missing: Likewise.

	* build-aux/ltmain.sh: Update from libtool-1.5.22.
	* m4/libtool.m4: Likewise.

2006-04-28  Bruno Haible  <bruno@clisp.org>

	* build-aux: Renamed from autoconf.
	* configure.ac (AC_CONFIG_AUX_DIR): Set to build-aux.

2006-04-22  Bruno Haible  <bruno@clisp.org>

	* configure.ac: Renamed from configure.in.

2006-04-21  Bruno Haible  <bruno@clisp.org>

	* src/machfault-macos-i386.h: Rewritten for Darwin 8.6.1.
	* configure.in: Change FAULT_CONTEXT for i?86-darwin.

2005-06-21  Paolo Bonzini  <bonzini@gnu.org>

	* configure.in: For handler-macos.c, include mach/thread_status.h.
	* configure: Regenerate.

2005-06-21  Paolo Bonzini  <bonzini@gnu.org>

	* tests/stackoverflow1.c (recurse): Make more resilient to compiler
	optimization.
	(recurse_1): New.
	* tests/stackoverflow2.c: Likewise.

2005-05-24  Bruno Haible  <bruno@clisp.org>

	* src/handler-win32.c (main_exception_filter): Copy CONTEXT structure
	to safe area on the stack.
	Based on patch by Doug Currie <e@flavors.com>.

	* src/handler-win32.c (main_exception_filter): Swap arguments passed
	to stack_overflow_handler.
	Patch by Doug Currie <e@flavors.com>.

	* src/handler-win32.c (main_exception_filter): Align %esp on a 16-byte
	boundary.

2005-03-02  Bruno Haible  <bruno@clisp.org>

	* Version 2.2 released.

2005-03-02  Bruno Haible  <bruno@clisp.org>

	* autoconf/config.guess: Update.
	* autoconf/config.sub: Update.
	* autoconf/missing: Update from automake-1.9.5.

	* m4/libtool.m4: Upgrade to libtool-1.5.14 with gettext modifications.
	* autoconf/ltmain.sh: Likewise.

2005-03-02  Bruno Haible  <bruno@clisp.org>

	* src/fault-aix5.h: New file.
	* src/fault-aix5-powerpc.h: New file.
	* src/Makefile.am (noinst_HEADERS): Add them.
	* configure.in: Choose them when the POSIX test succeeds on AIX.

	* src/fault-aix3-powerpc.h: Renamed from src/fault-aix-powerpc.h.
	* src/fault-aix3.h: Renamed from src/fault-aix.h.
	* src/Makefile.am (noinst_HEADERS): Update.
	* configure.in: Update. When cross-compiling, assume the AIX test
	succeeds only on AIX 3 and AIX 4.

2005-03-01  Bruno Haible  <bruno@clisp.org>

	* configure.in: Fix test of CFG_MACHFAULT.

2005-02-27  Bruno Haible  <bruno@clisp.org>

	* configure.in: Skip tests that are not needed on MacOS X >= 10.2.
	* m4/sigaltstack.m4 (SV_SIGALTSTACK): Don't perform the test on
	MacOS X >= 10.2.

2005-02-18  Bruno Haible  <bruno@clisp.org>

	* tests/sigsegv1.c (handler_called): Declare as volatile.
	* tests/sigsegv2.c (logcount, logdata): Likewise.
	* tests/stackoverflow1.c (pass): Likewise.
	* tests/stackoverflow2.c (pass): Likewise.

2005-01-29  Bruno Haible  <bruno@clisp.org>

	* src/sigsegv.h.in (LIBSIGSEGV_VERSION): New macro.
	(libsigsegv_version): New declaration.
	* src/version.c: New file.
	* src/Makefile.am (libsigsegv_la_SOURCES): Add version.c.
	* Makefile.msvc (OBJECTS): Add version.obj.
	(version.obj): New rule.
	Suggested by Sam Steingold.

2004-08-25  Bruno Haible  <bruno@clisp.org>

	* m4/libtool.m4: Upgrade to libtool-1.5.6.
	* autoconf/ltmain.sh: Upgrade to libtool-1.5.6.

2004-08-18  Bruno Haible  <bruno@clisp.org>

	* configure.in: Bump version number to 2.2.

2004-08-17  Bruno Haible  <bruno@clisp.org>

	Finish the Mach-based MacOS X support.
	* src/handler-macos.c: Don't include mach/vm_map.h.
	Include machfault.h instead of fault.h.
	(save_exc_state): Remove variable.
	(save_thread_state): New variable.
	(terminating_handler): New function.
	(altstack_handler): Pass the save_thread_state, not the save_exc_state,
	to the user's handler.
	(catch_exception_raise): Make it work also for platforms which don't
	have an exc_state type. Call SIGSEGV_FAULT_ADDRESS with 2 arguments.
	Don't clobber the exc_state; instead set the thread's program counter
	to terminating_handler or altstack_handler, depending on the case.
	Return KERN_SUCCESS at the end.
	* src/machfault.h: New file.
	* src/machfault-macos-powerpc.h (SIGSEGV_FAULT_ADDRESS): Add a second
	argument.
	* src/machfault-macos-i386.h: New file.
	* src/Makefile.am (EXTRA_DIST): Add handler-macos.c.
	(NOINST_HEADERS): Add machfault.h, machfault-macos-i386.h,
	machfault-macos-powerpc.h.
	* configure.in (CFG_HANDLER): Initialize to empty.
	(CFG_MACHFAULT): New substituted variable.
	On MacOS X PowerPC+i386, use CFG_HANDLER=handler-macos.c
	unconditionally.
	(sv_cv_fault_include, sv_cv_have_stack_overflow_recovery): Set
	correctly also in the handler-macos.c case.

2004-08-16  Bruno Haible  <bruno@clisp.org>

	Support for MacOS X 10.3 on PowerPC.
	* src/fault-macosdarwin5-powerpc.h: Renamed from
	src/fault-macos-powerpc.h.
	* src/fault-macosdarwin5-powerpc.c: Renamed from
	src/fault-macos-powerpc.c.
	* src/fault-macosdarwin7-powerpc.h: New file.
	* src/fault-macosdarwin7-powerpc.c: New file.
	* src/Makefile.am (noinst_HEADERS): Update.
	* configure.in: Test the method for MacOSX/Darwin5 PowerPC only after
	the method for MacOSX/Darwin7 PowerPC failed.
	Substitute FAULT_CONTEXT_INCLUDE2.
	* src/sigsegv.h.in: Insert @FAULT_CONTEXT_INCLUDE2@.
	* src/Makefile.am (sigsegv.h.msvc): Replace @FAULT_CONTEXT_INCLUDE2@.

2003-12-09  Paolo Bonzini  <bonzini@gnu.org>

	* src/handler-macos.c: Completed; removed dependency on
	signals.
	* src/machfault-macos-powerpc.h: Reorganized.

2003-12-08  Paolo Bonzini  <bonzini@gnu.org>
            Bruno Haible  <bruno@clisp.org>

	* src/handler-macos.c: New file.
	* src/machfault.h: New file.
	* src/machfault-macos-powerpc.h: New file.

2003-12-05  Bruno Haible  <bruno@clisp.org>

	* m4/fault.m4: Tweak indentation. Bump serial number.
	* m4/getpagesize.m4: Likewise.
	* m4/mmap-anon.m4: Likewise.
	* m4/sigaltstack.m4: Likewise.
	* m4/sigaltstack-longjmp.m4: Likewise.
	* m4/sigaltstack-siglongjmp.m4: Likewise.

2003-12-05  Paolo Bonzini  <bonzini@gnu.org>

	* aclocal.m4: Regenerate with Automake 1.7h.
	* configure.in: Drop m4/Makefile from list of generated files.
	* configure: Regenerate.
	* Makefile.am (install-data-hook): New name of the install-am
	target, for Automake 1.8 compatibility.  Other -am targets
	are not affected because Automake does not have anything to
	do to make them.
	(AUTOMAKE_OPTIONS): Bump minimum Automake requirement to 1.7h.
	(SUBDIRS): Remove m4.
	($(srcdir)/config.h.msvc): New target for config.h.msvc.
	* Makefile.in: Regenerate with Automake 1.7h.
	* m4/Makefile.am: Delete, Automake 1.7h takes care of it.
	* m4/Makefile.in: Delete.
	* src/Makefile.am (installdirs): Delete, Automake 1.7h adds it.
	* src/Makefile.in: Regenerate with Automake 1.7h.
	* tests/Makefile.in: Regenerate with Automake 1.7h.

	* autoconf/config.guess: Update from automake-1.7h.
	* autoconf/config.sub: Likewise.
	* autoconf/install.sh: Likewise.
	* autoconf/missing: Likewise.
	* autoconf/mkinstalldirs: Delete.
	* m4/fault.m4: autoupdate and manually tweak.
	* m4/sigaltstack.m4: Likewise.
	* m4/sigaltstack-longjmp.m4: Likewise.
	* m4/sigaltstack-siglongjmp.m4: Likewise.
	* m4/mmap-anon.m4: Likewise.
	* m4/getpagesize.m4: Likewise.

2003-10-29  Bruno Haible  <bruno@clisp.org>

	* tests/sigsegv1.c (main): Add a check whether mprotect with
	PROT_READ_WRITE really works.
	* tests/sigsegv2.c (main): Likewise.
	Reported by Ullal Devappa Kini <wmbfqj@vsnl.net>.

2003-08-21  Bruno Haible  <bruno@clisp.org>

	* Version 2.1 released.

2003-06-24  Paolo Bonzini  <bonzini@gnu.org>

	* m4/fault.m4: Exit if we detect an infinite loop.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

2003-06-18  Bruno Haible  <bruno@clisp.org>

	* autoconf/install-sh: Update from automake-1.7.5.

2003-05-14  Paolo Bonzini  <bonzini@gnu.org>

	* configure.in: Use signals-bsd.h for OpenBSD and NetBSD too.
	Support instruction decoding to get fault address for Alphas.
	* src/fault-netbsd-alpha.h: New file.
	* src/fault-netbsd-alpha.c: New file.
	* src/Makefile.am (noinst_HEADERS): Add them.

2003-05-14  Paolo Bonzini  <bonzini@gnu.org>

	* src/dispatcher.c (insert): Fix lossage in 64-bit environments
	(cast from void* to unsigned int).

2003-05-10  Bruno Haible  <bruno@clisp.org>

	* tests/Makefile.am (../src/libsigsegv.la): New rule.

	* Makefile.msvc (handler.obj): Complete the dependencies.
	(stackoverflow2.exe): New rule.
	(check): Depend on it.
	(clean): Remove it.

2003-05-10  Paolo Bonzini  <bonzini@gnu.org>
            Bruno Haible  <bruno@clisp.org>

	* configure.in: AC_SUBST of CFG_STACKVMA, CFG_LEAVE, CFG_HANDLER.
	* src/Makefile.am: Add dependencies for the object files.

2003-05-08  Paolo Bonzini  <bonzini@gnu.org>

	* configure.in: Add $srcdir/ to #include statements. Needed when
	builddir != srcdir.

	* src/signals-macos.h (SIGSEGV_FOR_ALL_SIGNALS): Add SIGSEGV.

2003-05-03  Paolo Bonzini  <bonzini@gnu.org>

	* configure.in: Tweak 2003-04-26 patch so that it works on mingw32 and
	Cygwin.

2003-05-02  Bruno Haible  <bruno@clisp.org>

	* src/handler-unix.c: Add special case for stack handling on IA-64.
	* src/fault-linux-ia64.h: Complete the port.
	* configure.in: Improve Linux/IA-64 support.

2003-05-01  Bruno Haible  <bruno@clisp.org>

	* configure.in: Don't use fault-hurd.h on NetBSD/alpha. It does not
	work.

2003-05-01  Bruno Haible  <bruno@clisp.org>

	Support for Linux/HPPA.
	* fault-linux-hppa.h: Don't include <siginfo.h>.
	(SIGSEGV_FAULT_ADDRESS): Change.
	(SIGSEGV_FAULT_ADDRESS_FROM_SIGINFO): Define it, otherwise the value
	passed for sip is 0.
	(SIGSEGV_FAULT_CONTEXT, SIGSEGV_FAULT_STACKPOINTER): Remove macros.
	* configure.in: Improve Linux/HPPA support.

2003-05-01  Bruno Haible  <bruno@clisp.org>

	Support for OpenBSD/i386.
	* src/fault-openbsd.h: New file.
	* src/fault-openbsd-i386.h: New file.
	* src/Makefile.am (noinst_HEADERS): Add them.
	* configure.in: If the POSIX test works and the OS is OpenBSD, use
	fault-openbsd.h instead of fault-posix.h.

2003-05-01  Bruno Haible  <bruno@clisp.org>

	* src/fault-hpux-hppa.h: Make it work on machines with 64-bit registers
	as well.
	* configure.in: Likewise.

2003-04-29  Bruno Haible  <bruno@clisp.org>

	* configure.in: Define HAVE_STACKVMA if CFG_STACKVMA is nontrivial.
	* src/handler-unix.c: Test HAVE_STACKVMA instead of CFG_STACKVMA.

	* m4/fault.m4 (SV_TRY_FAULT): On HP-UX, always pass 0 as first argument
	of mmap().
	* tests/mmaputil.h (mmap_zeromap): Likewise.

2003-04-28  Bruno Haible  <bruno@clisp.org>

	* src/stackvma-freebsd.c (sigsegv_get_vma): Fix logic error.

2002-04-17  Paolo Bonzini  <bonzini@gnu.org>

	Support for Cygwin.
	* configure.in: Treat cygwin* like mingw*.
	* src/handler-win32.c [CYGWIN] (exception_list, _except_list,
	debug_get_except_list, cygwin_exception_handler,
	libsigsegv_exception_handler, do_install_main_exception_filter): New
	definitions.
	(install_main_exception_filter): New function.
	(sigsegv_install_handler, stackoverflow_install_handler): Call it.

2003-04-26  Bruno Haible  <bruno@clisp.org>

	* configure.in: Don't set sv_cv_have_stack_overflow_recovery=yes if
	not all of the fault-*.h and stackvma-*.h premises are fulfilled.
	Reported by Paolo Bonzini <bonzini@gnu.org> for NetBSD/Alpha.

2003-04-03  Bruno Haible  <bruno@clisp.org>

	* configure.in: Add --enable-relocatable option.
	* m4/relocatable.m4: New file, from GNU gettext.
	* m4/Makefile.am (EXTRA_DIST): Add it.

	* m4/libtool.m4: Update from GNU gettext, based on libtool-1.4.3.
	* autoconf/ltmain.sh: Likewise.

2003-04-02  Bruno Haible  <bruno@clisp.org>

	* configure.in: Bump version number to 2.1.

	* tests/stackoverflow2.c: New file, based on code by Paolo Bonzini.
	* tests/Makefile.am (TESTS, noinst_PROGRAMS): Add stackoverflow2.

2003-04-02  Paolo Bonzini  <bonzini@gnu.org>
            Bruno Haible  <bruno@clisp.org>

	Complete the port to MacOS X (Darwin).
	* m4/fault.m4: Include sys/signal.h. Have an exit status of 3 instead
	of 1 if fault_address is misdetected.
	* m4/sigaltstack.m4: Define stack_t to struct sigaltstack if absent.
	Include <sys/signal.h>.
	* configure.in: Add check for sys/signal.h.
	Add support for catching stack overflow on MacOSX.
	Add support for MacOSX on i386.
	Provide a fallback for SS_ONSTACK before using it.
	* src/fault-macos-i386.h: New file.
	* src/stackvma-mach.c: New file.
	* src/fault-macos-powerpc.h (SIGSEGV_FAULT_STACKPOINTER): Change.
	* src/handler-unix.c: Include <sys/signal.h>.
	(SS_DISABLE): Provide a fallback.
	* src/leave-sigaltstack.c: Include sys/signal.h.
	(SS_ONSTACK): Provide a fallback.
	* src/Makefile.am (noinst_HEADERS): Add fault-macos-i386.h.
	(EXTRA_DIST): Add stackvma-mach.c.
	* tests/sigsegv1.c: Abort after 10 handler invocations.
	(main): Drop SKIP message, now emitted by automake 1.7.x.
	* tests/sigsegv2.c: Abort after 10 handler invocations.
	(main): Drop SKIP message, now emitted by automake 1.7.x.
	* tests/stackoverflow1.c (main): Drop SKIP message, now emitted by
	automake 1.7.x.

2002-10-14  Bruno Haible  <bruno@clisp.org>

	* src/fault-none.h: New file.
	* src/fault.h: Include CFG_FAULT unconditionally.
	* src/leave-none.c: New file.
	* src/leave.c: Include CFG_LEAVE unconditionally.
	* src/stackvma.c: Include CFG_STACKVMA unconditionally.
	* configure.in (CFG_LEAVE, CFG_STACKVMA): Define always.
	* src/Makefile.am (noinst_HEADERS): Add fault-none.h.
	(EXTRA_DIST): Add leave-none.c.
	Reported by Paolo Bonzini <bonzini@gnu.org>.

2002-09-30  Bruno Haible  <bruno@clisp.org>

	* src/Makefile.am (noinst_HEADERS): Add fault-hurd.h,
	fault-linux-m68k.c, fault-macos-powerpc.h, fault-macos-powerpc.c,
	signals-hurd.h, signals-macos.h.

2002-09-30  Bruno Haible  <bruno@clisp.org>

	* Makefile.am (check-next): Don't ask for reports from i?86-*-linux*
	platforms.

2002-09-30  Bruno Haible  <bruno@clisp.org>

	Better Linux/PowerPC support.
	* configure.in: Change Linux/PowerPC support.
	* src/fault-linux-powerpc.h (SIGSEGV_FAULT_ADDRESS): New macro.

2002-09-30  Bruno Haible  <bruno@clisp.org>

	Better Linux/m68k support.
	* configure.in: Change Linux/m68k support.
	* src/fault-linux-m68k.c: New file.
	* src/fault-linux-m68k.h: Use it.

2002-09-30  Bruno Haible  <bruno@clisp.org>

	Tentative Hurd support.
	* configure.in: Add Hurd support.
	* src/signals-hurd.h: New file.
	* src/fault-hurd.h: New file.

2002-09-30  Bruno Haible  <bruno@clisp.org>

	MacOSX/PowerPC support.
	* configure.in: Add MacOSX/PowerPC support.
	* src/signals-macos.h: New file.
	* src/fault-macos-powerpc.c: New file.
	* src/fault-macos-powerpc.h: New file.

2002-09-16  Bruno Haible  <bruno@clisp.org>

	* src/fault-posix.h: Don't include <siginfo.h>. Needed for hppa-linux.
	Reported by Will Newton <will@misconception.org.uk>.

2002-08-28  Bruno Haible  <bruno@clisp.org>

	* Version 2.0 released.

2002-07-28  Bruno Haible  <bruno@clisp.org>

	Big reorganization and rewrite. Every file changed.

