* Makefile.tpl (configure-stageN-MODULE): Pass --with-build-libsubdir
for stages after the first.
* Makefile.in: Regenerate.
config:
2006-07-19 Paolo Bonzini <bonzini@gnu.org>
* acx.m4: Support --with-build-libsubdir and AC_SUBST
build_libsubdir.
Sync from gcc:
2006-06-06 David Ayers <d.ayers@inode.at>
PR libobjc/13946
* Makefile.def: Add dependencies for libobjc which boehm-gc.
* Makefile.in: Regenerate.
* configure.in: Add --enable-objc-gc at toplevel and have it
enable boehm-gc for Objective-C.
Remove target-boehm-gc from libgcj.
Add target-boehm-gc to target_libraries.
Add target-boehm-gc to noconfigdirs where ${libgcj}
is specified.
Assert that boehm-gc is supported when requested for Objective-C.
Only build boehm-gc if needed either for Java or Objective-C.
* configure: Regenerate.
2006-06-05 Paolo Bonzini <bonzini@gnu.org>
PR 27674
* Makefile.tpl (configure-[+prefix+][+module+],
all-[+prefix+][+module+]): Depend on stage_current if bootstrapping.
Remove rule to unstage bootstrapped modules.
(stage_current): New.
* Makefile.in: Regenerate.
2006-05-20 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Andreas Tobler <a.tobler@schweiz.ch>
* configure.in: Enable libgcj for hppa*-hp-hpux11*.
* configure: Rebuilt.
Revert
2006-01-31 Richard Guenther <rguenther@suse.de>
Paolo Bonzini <bonzini@gnu.org>
* Makefile.def (target_modules): Add libgcc-math target module.
* configure.in (target_libraries): Add libgcc-math target library.
(--enable-libgcc-math): New configure switch.
* Makefile.in: Re-generate.
* configure: Re-generate.
PR bootstrap/25670
* Makefile.tpl ([+compare-target+]): Print explanation messages.
* Makefile.def (ADAFLAGS, BOOT_ADAFLAGS, LANGUAGES): New flags_to_pass.
* Makefile.tpl (BASE_FLAGS_TO_PASS): Support optional flags_to_pass.
(EXTRA_GCC_FLAGS): Remove ADAFLAGS, BOOT_ADAFLAGS, LANGUAGES,
BUILD_PREFIX, BUILD_PREFIX_1.
* configure.in: (BUILD_PREFIX, BUILD_PREFIX_1): Don't substitute.
* Makefile.def (bootstrap stage 1): Pass LIBCFLAGS too.
* Makefile.tpl (POSTSTAGE1_FLAGS_TO_PASS): Override LIBCFLAGS too.
* Makefile.tpl (configure-stage[+id+]-[+prefix+][+module+],
all-stage[+id+]-[+prefix+][+module+], : Use $(current_stage) instead
of `cat stage_current`. Always provide the `r' and `s' variables.
(clean-stage[+id+]-[+prefix+][+module+]): Likewise, and make it into
a single shell execution.
(configure-[+prefix+][+module+], all-[+prefix+][+module+]): For
bootstrapped modules, make the stage1 module if the build was not
started yet, else build the current stage.
(all-host, all-target): Omit bootstrapped modules (if bootstrapping).
(all-build, all-host, all-target, [+make_target+]-host,
[+make_target+]-target): Do not use \-continued lines.
(target modules): Depend on stage_last, not all-gcc, if bootstrapping.
(current_stage, restrap, stage_last): New.
* Makefile.in: Regenerate.
* configure: Regenerate.
Sync from gcc:
2006-01-04 Paolo Bonzini <bonzini@gnu.org>
PR bootstrap/24252
* Makefile.def (flags_to_pass): Add STAGE1_CFLAGS and STAGE1_LANGUAGES.
* Makefile.tpl (OBJDUMP): New.
(EXTRA_HOST_FLAGS): Add it.
(EXTRA_GCC_FLAGS): Remove flags already specified in flags_to_pass.
* Makefile.tpl (stage[+id+]-start, stage[+id+]-end): Do not try
to use symbolic links between directories. Avoid race conditions
or make them harmless.
* configure.in: Do not try to use symbolic links between directories.
* Makefile.def (LEAN): Pass.
* Makefile.tpl (LEAN): Define.
(stage[+id+]-start): Accept that the previous directory does not
exist, if the bootstrap is lean.
(stage[+id+]-bubble): Invoke lean bootstrap commands after
stage[+id+]-start. Use a makefile variable and an `if' instead of a
configure substitution.
([+compare-target+]): Likewise.
([+bootstrap-target+]-lean): New.
* configure.in: Remove lean bootstrap support from here.
* Makefile.in: Regenerate.
* configure: Regenerate.
2006-01-02 Andreas Schwab <schwab@suse.de>
* configure.in: When reconfiguring remove Makefile in
all stage directories.
* configure: Regenerate.
Revert Ada-related part of the previous change.
* Makefile.def (ADAFLAGS, BOOT_ADAFLAGS, ADAFLAGS_FOR_TARGET):
Do not pass.
* Makefile.tpl (BOOT_ADAFLAGS): Do not define.
* Makefile.in: Regenerate.
* configure.in: Do not include mt-ppc-aix target fragment.
* configure: Regenerate.
config:
2005-12-20 Paolo Bonzini <bonzini@gnu.org>
Revert Ada-related part of the previous change.
* mt-ppc-aix: Delete.
2005-12-05 Paolo Bonzini <bonzini@gnu.org>
Sync with gcc:
2005-12-05 Paolo Bonzini <bonzini@gnu.org>
* configure.in (CONFIGURED_BISON, CONFIGURED_YACC, CONFIGURED_M4,
CONFIGURED_FLEX, CONFIGURED_LEX, CONFIGURED_MAKEINFO): Remove
"CONFIGURED_" from the AC_CHECK_PROGS invocation. Move below.
Find in-tree tools if available.
(EXPECT, RUNTEST, LIPO, STRIP): Find them and substitute them.
(CONFIGURED_*_FOR_TARGET): Don't set nor substitute.
(*_FOR_TARGET): Set them with GCC_TARGET_TOOL.
(COMPILER_*_FOR_TARGET): New.
* Makefile.tpl (HOST_EXPORTS): Add *_FOR_TARGET symbols that gcc needs.
(BASE_TARGET_EXPORTS): Use COMPILER_*_FOR_TARGET symbols.
(CONFIGURED_*, USUAL_*): Remove.
(BISON, YACC, FLEX, LEX, M4, MAKEINFO, EXPECT, RUNTEST, LIPO,
STRIP): Use autoconf substitutions.
(COMPILER_AS_FOR_TARGET, COMPILER_LD_FOR_TARGET,
COMPILER_NM_FOR_TARGET): New.
(EXTRA_HOST_FLAGS): Pass LIPO and STRIP.
(all): Make all-host and all-target in parallel.
(do-[+make_target+], do-check, install, [+compare-target+]): Ensure
that $$r and $$s are set before invoking a recursive make.
(stage[+id+]-bubble): Likewise, and invoke the comparison at the end.
([+bootstrap-target+]): Inline most of the `all' target.
2005-11-29 Ben Elliston <bje@au.ibm.com>
* Makefile.tpl (clean-target-libgcc): Invoke clean-target-libgcc
from the gcc build directory.
* Makefile.in: Regenerate.
2005-11-29 Ben Elliston <bje@au.ibm.com>
* Makefile.def: Add new libdecnumber host_module. Make all-gcc
depend on all-libdecnumber.
* configure.in (host_libs): Include libdecnumber.
* Makefile.in: Regenerate.
* configure: Likewise.
2005-11-21 Kean Johnston <jkj@sco.com>
* config.sub, config.guess: Sync from upstream sources.
config:
2005-12-05 Paolo Bonzini <bonzini@gnu.org>
* acx.m4 (GCC_TARGET_TOOL): New.
* Makefile.tpl (CONFIGURE_GDB_TK, INSTALL_GDB_TK): New variables.
(configure-gdb, install-gdb): New rules.
* configure.in: Set CONFIGURE_GDB_TK and INSTALL_GDB_TK.
* Makefile.in, configure: Regenerated.
PR bootstrap/24297
* Makefile.tpl (do-[+make-target+], do-check, install,
stage[+id+]-bubble, [+compare-target+]): Ensure $$r and $$s
are set before recursing.
* Makefile.in: Regenerate.
PR bootstrap/22340
* configure.in (default_target): Remove.
* Makefile.tpl (all): Do not use prerequisites as subroutines
(all) [gcc-bootstrap]: Bootstrap gcc first if it was not done yet.
(do-[+make_target+], check, install, [+bootstrap_target+]): Do not
use prerequisites as subroutines.
(check-host, check-target): New.
(bootstrap configure & all targets): Do not use stage*-start
if the directory layout is already ok.
(non-bootstrap configure & all targets): Prepend a $(unstage).
(stage[+id+]-bubble): Do that here. Do not use NOTPARALLEL.
(NOTPARALLEL): Remove.
(unstage, stage variables): New variables.
(unstage, stage targets): Simply expand to those variables.
* configure: Regenerate.
* Makefile.in: Regenerate.
* Makefile.tpl (stage[+id+]-start): Iterate over target module as well.
(Dependencies): Consider target modules for bootstrap dependencies.
Make target bootstrap modules depend on each stage's gcc.
* Makefile.in: Regenerate.
* Makefile.tpl (BUILD_CONFIGARGS): Include --with-build-subdir.
(TARGET_CONFIGARGS): Include --with-target-subdir.
(configure, all): New macros. Use them throughout.
* Makefile.def: Remove libstdcxx_incdir, libsubdir, gxx_include_dir,
gcc_version, and gcc_version_trigger from set of flags to pass.
* Makefile.tpl: Remove definitions of above variables.
(config.status): Remove dependency on $(gcc_version_trigger).
* Makefile.in: Regenerate.
* configure.in: Do not reference config/gcc-version.m4 nor
config/gxx-include-dir.m4. Do not invoke TL_AC_GCC_VERSION nor
TL_AC_GXX_INCLUDE_DIR. Do not set gcc_version_trigger.
* configure: Regenerate.
config:
* gxx-include-dir.m4: In all substitutions, leave $(gcc_version)
to be expanded by the Makefile.
Sync from gcc.
2005-02-28 Paolo Bonzini <bonzini@gnu.org>
PR bootstrap/17383
* Makefile.def (target_modules): Remove "stage", now unnecessary.
* Makefile.tpl (HOST_SUBDIR): New substitution.
(STAGE_HOST_EXPORTS, EXPECT, HOST_LIB_PATH, USUAL_AR_FOR_TARGET,
USUAL_AS_FOR_TARGET, USUAL_DLLTOOL_FOR_TARGET, USUAL_GCC_FOR_TARGET,
USUAL_LD_FOR_TARGET, USUAL_NM_FOR_TARGET, USUAL_OBJDUMP_FOR_TARGET,
USUAL_RANLIB_FOR_TARGET, USUAL_WINDRES_FOR_TARGET): Use it.
(Host modules, Bootstrapped modules): Use it.
(Build modules, Target modules): Do not create symlink trees,
always configure out-of-srcdir.
(distclean): Try removing $(host_subdir) with rm before using rm -rf.
* configure.in (FLAGS_FOR_TARGET, CC_FOR_TARGET, GCJ_FOR_TARGET,
GFORTRAN_FOR_TARGET, CXX_FOR_TARGET, RAW_CXX_FOR_TARGET): Use
$(HOST_SUBDIR). Create a symlink for host_subdir.
* Makefile.in: Regenerate.
* configure: Regenerate.
Merged from libada-gnattools-branch:
2004-11-28 Nathanael Nerode <neroden@gcc.gnu.org>
* Makefile.def: Add gnattools as a module, depending on target-libada.
* Makefile.in: Regenerate.
* configure.in: Include gnattools in host_tools; disable it if ada
is disabled.
* configure: Regenerate.
config:
2005-02-28 Paolo Bonzini <bonzini@gnu.org>
PR bootstrap/17383
* acx.m4 (GCC_TOPLEV_SUBDIRS): Set HOST_SUBDIR if an in-src
gcc build is going.
PR bootstrap/17383
* Makefile.def (target_modules): Remove stage parameter,
it is always true now.
* Makefile.tpl (configure-build-[+module+],
configure-target-[+module+]): Always build symlink tree
for the directory and for include. BUILD_SUBDIR and
TARGET_SUBDIR cannot be . anymore.
* Makefile.in: Regenerate.
* Makefile.def (bootstrap stages): Add 'lean' parameter.
* Makefile.tpl (configure-stageN-*, all-stageN-*): Turned into
phony targets; do not generate timestamp files.
(distclean-stageN): Remove references to their timestamp files.
(restageN, touch-stageN): Remove.
(stageN-bubble): Rewritten.
(compare): Support lean bootstraps.
* Makefile.in: Regenerate.
* configure.in: Only warn when bootstrapping but
build != host or build != target. Support lean bootstraps.
* configure: Regenerate.
Sync from gcc:
2004-08-26 Phil Edwards <phil@codesourcery.com>
* configure.in: Give a better error message if GMP/MPFR are missing
and a language needing them has been requested.
* configure: Regenerated.
2004-08-25 Phil Edwards <phil@codesourcery.com>
* configure.in: Print a list of available language front-ends if
a requested one is missing. Tidy stray tab characters.
* configure: Regenerated.
* Makefile.in: Regenerate.
* configure: Regenerate.
* Makefile.def (bootstrap-stage): Rename extra_*_flags to
stage_*_flags.
* Makefile.tpl (configure-[+module+], all-[+module+]): Exit
for bootstrapped modules if toplevel bootstrap is going.
(GCC bootstrap): Generate per-stage targets for all bootstrapped
modules. Adjust for changes in Makefile.def. Enable several
rules even in non-bootstrap mode, just to avoid peppering the
template with unnecessary "@if/@endif gcc-bootstrap" pairs.
(stage-[+prev+]-bubble): Remove.
* Makefile.def (Dependencies): Depend on all-build-bison,
all-build-flex, all-build-byacc, all-build-texinfo, rather
than the host variations.
* Makefile.tpl (BUILD_DIR_PREFIX): Remove. Replace throughout
with BUILD_SUBDIR.
(BISON): Update for recent Bisons.
(YACC): Fix typo.
(cross): Depend on all-build.
(all): Do not depend on all-build.
(prebootstrap): Remove.
(dep-kind): Accept separate prefixes for MODULE and ON variables.
(Prebootstrap dependencies): Add them to the per-stage targets
and to all-prebootstrap.
* configure.in (build_configdirs): Always enable build_tools.
(BUILD_DIR_PREFIX): Remove.
* Makefile.def (gcc): Add target variable.
(gdb, expect, guile, tk, tix): Replace with_x with extra_make_flags.
* Makefile.tpl (Autogenerated `all-*' targets): Invoke $(TARGET-*)
in the recursive `make', instead of hardwiring `all'.
(Autogenerated TARGET-* variables): New.
* Makefile.def (bfd, opcodes, gcc, zlib): Mark as bootstrap module.
(bison, byacc, flex, texinfo): Do not mark as bootstrap module.
(Dependencies): New section.
* Makefile.tpl (Dependencies): Generate from Makefile.def.
(configure-target-[+module+]): Depend on maybe-all-gcc
(all-prebootstrap): New name of all-bootstrap. Changed throughout.
(toplevel profiledbootstrap): Fix dependencies.
* Makefile.in: Regenerate.
* Makefile.def (host-modules): Add gcc.
* Makefile.in: Regenerate.
* Makefile.tpl (sorry): New rule.
(configure-host, all-host, [+make_target+]-host, do-check,
install-host): Do not add gcc as a special case.
(host modules): Add a small special-casing for gcc. Export
extra_make_flags through the environment.
(maybe-configure-gcc, configure-gcc, maybe-all-gcc, all-gcc,
maybe-check-gcc, check-gcc, maybe-install-gcc, install-gcc,
other recursive targets for gcc): Remove.
(all, do-[+make_target+], do-check): Wrap between unstage and stage.
(stage, unstage): New rules.
(stage[+id+]-start, stage[+id+]-end, [+compare-target+],
distclean-stage[+id+]): Use stage_current.
([+bootstrap-target+], profiledbootstrap): Do not invoke manually
the stage*-start rules.
* configure.in: Add noconfigdirs for crx-*-*.
* configure: Regenerate.
2004-07-09 Loren J. Rittle <ljrittle@acm.org>
* configure.in: Build libmudflap by default on FreeBSD.
* configure: Regenerated.
2004-07-09 Mark Mitchell <mark@codesourcery.com>
* configure.in: Do not build libmudflap by default on non-GNU/Linux
systems.
* configure: Regenerated.
2004-07-08 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
PR target/16344
* Makefile.tpl (profiledbootstrap): Build runtime libraries with
feedback based compiler.
* Makefile.in: Rebuilt.
2004-07-05 Phil Edwards <phil@codesourcery.com>
* configure.in: Do not prepend $srcdir to /dev/null in
makefile fragments.
* configure: Regenerate.
* Makefile.def (build_modules): Add bison, byacc, flex,
m4, texinfo.
(flags_to_pass): Add FLEX.
* Makefile.tpl (BUILD_DIR_PREFIX, BASE_EXPORTS): New.
(BUILD_EXPORTS, HOST_EXPORTS, BASE_TARGET_EXPORTS): Include it.
(DEFAULT_YACC, USUAL_YACC, DEFAULT_LEX, USUAL_LEX, DEFAULT_M4,
DEFAULT_MAKEINFO): Remove.
(CONFIGURED_YACC, CONFIGURED_FLEX, CONFIGURED_BISON,
CONFIGURED_LEX, CONFIGURED_M4, CONFIGURED_MAKEINFO): Substitute.
(YACC, FLEX, BISON, LEX, M4, MAKEINFO): Define to look into
objdir or else use configured tool.
(all-build): New.
(all): Depend on it.
(Build module dependencies): Add.
* Makefile.in: Regenerate.
* configure.in: Better support for multiple build modules,
matching what is done for host/target modules. Do not look
for "plausible" locations of build tools if Canadian cross.
Use autoconf's AC_PROG_CC to find a C compiler. Define
BUILD_DIR_PREFIX. Look for flex, makeinfo and m4.
* configure: Regenerate.
* Makefile.tpl (touch-stage[+id+]): New.
(restage[+prev+]): Depend on touch-stage[+id+].
* Makefile.tpl (RECURSE_FLAGS_TO_PASS): New.
Use it throughout.
* Makefile.def: Add profile and feedback bootstrap stages.
Remove next field from bootstrap stages.
* Makefile.tpl (LN, LN_S): Substitute.
(stageN-start, stageN-end): Use double-colon rules, to
provide a hook for additional setup commands.
(distclean-stageN-gcc, restageN): Create dependencies from
[+prev+], not from [+next+].
(stageN-bubble): Add commands for successive stages from
[+prev+], using double-colon rules.
(all-stageN-gcc): Fix typo.
(stagefeedback-start, profiledbootstrap): New.
* Makefile.in: Regenerate.
* configure.in: Call ACX_PROG_LN.
* configure: Regenerate.
config/ChangeLog:
2004-06-09 Paolo Bonzini <bonzini@gnu.org>
* acx.m4 (ACX_PROG_LN): From gcc, modified to
accept a parameter.
* Makefile.tpl (all.normal): Rename to all.
(all): Replace with a rule to pick the default
target from configure.
(all-gcc, configure-gcc): Use conditionals to
do nothing when toplevel bootstrap is going on.
(GCC directory bootstrap) [gcc-bootstrap]: Disable.
(Toplevel bootstrap) [gcc-no-bootstrap]: Disable.
* configure.in: Support --enable-bootstrap.
* Makefile.def: Remove new- prefix from toplevel
bootstrap targets.
* Makefile.tpl: Likewise.
* Makefile.def: Add bootstrap_stage 4. Add bootstrap2
target.
* Makefile.tpl (Toplevel bootstrap): Pass $(BASE_FLAGS_TO_PASS)
$(RECURSE_FLAGS) to recursive invocation of make.
* Makefile.in: Regenerate.
* configure: Regenerate.
(STAGE_HOST_EXPORTS, BASE_TARGET_EXPORTS, RAW_CXX_TARGET_EXPORTS)
(NORMAL_TARGET_EXPORTS): New macros. Use them in all the recursive
targets.
* Makefile.in: Regenerate.
* Makefile.tpl: Whenever a recursive target is defined, wrap
it in a special @if/@endif block, and prepare its maybe
dependency in the @if/@endif block
* configure.in: Instead of writing maybe dependencies, remove
the @if/@endif statements, and remove the @if/@endif blocks
that remain.
* configure: Regenerate.
* Makefile.in: Regenerate.
2004-04-27 Paolo Bonzini <bonzini@gnu.org>
Revert:
2004-04-26 Paolo Bonzini <bonzini@gnu.org>
* Makefile.def (flags_to_pass): Remove *dir variables that
are passed to the modules via TOPLEVEL_CONFIGURE_ARGUMENTS,
as well as prefix and exec_prefix.
* Makefile.in: Regenerate.
2004-04-26 Paolo Bonzini <bonzini@gnu.org>
* Makefile.def (host_modules): Mark with the bootstrap
flag packages on which gcc depends.
* Makefile.tpl (all-bootstrap): Use it.
* Makefile.in: Regenerate.
2004-04-26 Paolo Bonzini <bonzini@gnu.org>
* Makefile.def (flags_to_pass): Remove *dir variables that
are passed to the modules via TOPLEVEL_CONFIGURE_ARGUMENTS,
as well as prefix and exec_prefix.
* Makefile.in: Regenerate.
2004-04-26 Paolo Bonzini <bonzini@gnu.org>
* configure.in: Invoke ACX_PROG_CMP_IGNORE_INITIAL.
* configure: Regenerate.
* config/acx.m4: Mutuate ACX_PROG_CMP_IGNORE_INITIAL from gcc.
* gcc/Makefile.tpl (compare): Use the result of the test.
* gcc/Makefile.in: Regenerate.
2004-04-23 Paolo Bonzini <bonzini@gnu.org>
* Makefile.tpl (all-stage1-gcc, all-stage2-gcc, all-stage3-gcc):
Always relocate gcc and prev-gcc to the original names, even
if the build fails.
(new-cleanstrap, new-restage1, new-restage2, new-restage3):
New targets.
PR bootstrap/14871
* Makefile.tpl: If we don't have built-in-tree target tools,
use the ones found by configure rather than hacking around with
program_transform_name.
* configure.in: Give Makefile.tpl the information necessary
to do that.
* Makefile.in: Regenerate.
* configure: Regenerate.
2004-04-06 Nathanael Nerode <neroden@gcc.gnu.org>
PR bootstrap/14760
* configure.in: When computing baseargs, strip *all* copies of
offending options. Also, don't match/substitute the trailing space,
so that this actually works when two similar options are separated by
only one space.
* configure: Regenerate.
2004-04-06 David Edelsohn <edelsohn@gnu.org>
* configure.in (powerpc-*-aix*): Remove target-libada from noconfigdirs.
(rs6000-*-aix*): Same.
* configure: Regenerate.
to set @stage2_werror_flag@.
* configure: Regenerate.
* Makefile.tpl (top level bootstrap support): Pass
@stage2_werror_flag@ down to configure in stages 2 and 3.
* Makefile.in: Regenerate.
* Makefile.tpl (new-bootstrap): Set CC and CC_FOR_BUILD in configure
for stages 2 and 3 as well as in make. As a consequence, remove
OUTPUT_OPTION (now detected by configure) from the flags passed down
to make.
* Makefile.in: Regenerate.
* Makefile.tpl (new-bootstrap): Fix typo.
* Makefile.in: Regenerate.
into their proper sections.
* Makefile.tpl (top level bootstrap support): Move disabling
of coverage flags from 'make' to 'configure'; improve comments.
* Makefile.in: Regenerate.
* Makefile.tpl (experimental top level bootstrap) Move stage1
language setting from all- target to configure- target; disable
intermodule optimization in stage 1; prevent gratuitous rebuilds
of stage 1.
* Makefile.in: Regenerate.
* configure.in: Comma-separate stage 1 language list for top
level bootstrap.
* configure: Regenerate.
* Makefile.tpl: Clean up experimental top level bootstrap support:
note known problems; set CONFIG_SHELL; don't set BUILD_CC; relocate
prev-gcc in configure- targets as well as all- targets.
* Makefile.in: Regenerate.
Paolo Bonzini
Carlos O'Donell
Alexandre Oliva
Daniel Jacobowitz
Geoffrey Keating
Christian Groessler
Mark Mitchell
R. Kelley Cook
Andreas Schwab
Zack Weinberg
DJ Delorie
David Edelsohn
Eric Christopher
Mike Stump
H.J. Lu
Daniel Berlin
Jim Wilson
Nathanael Nerode
Keith Seitz