put reallocarray() in the public namespace

reallocarray() will be part of the next POSIX release, see
https://austingroupbugs.net/view.php?id=1218

adapt an errno value to match POSIX expectations

As discussed on tech-userlevel

various updates to build with xorg-server 21.1.3.

- the s3, tga, and trident drivers use old functionality and are disabled
- dixmods/fb is removed, main fb has all these now (we retain our revert
of an upstream change here.)
- adjust source lists as necessary
- remove vbe module, now part of int10
- use -lxcvt
- misc clean up
- ramdac loses IBM, BT and TI support (this is one of the problems for
the disabled drivers, but also some structures in RamDac.h are gone
entirely, not copied anywhere.)
- old apm code is gone, all bsd uses pm_noop. now

this probably require a clean build in at least xorg-server and the
drivers, and perhaps the DESTDIR as well. will update src/UPDATING with
details when they are fully known.

Fix build with "USE_SSP" set to "yes"

build updates for xorg-server 1.20.3:
- moved/removed/new files
- don't define HAVE_XORG_CONFIG_H or HAVE_DIX_CONFIG_H if using
${X11FLAGS.DIX} -- already included.

put glxvnd into glx itself for now.

branches: 1.15.10; 1.15.12;
build timingsafe_memcpy.c.

branches: 1.14.2;
various updates:
- port pkgsrc libxshmfence patches
- Xextbuiltin/module is no longer a thing, make it normal
- always need xorg-config.h/xorg-server.h for server components now
- add present, damage, render, Xi, dri, pixman, extension where needed
- fix various CPPFLAGS issues
- deal with moved sdksyms.sh

various build updates for xorg-server 1.18. with this and some other
uncommited work, Xvfb and Xnest both link.

round do of reach over updates for xorg-server 1.18. again, untested,
but this should be much closer to complete for the necessary changes.

branches: 1.11.2;
remove the xfree86 reachover makefiles and the vast majority of
the support in the rest of the source tree.

X11 sets could use some cleaning up perhaps (just deletion, as
we've never really marked the old X11R6 as obsolete for native
xorg using platforms so far either.)

branches: 1.10.2; 1.10.4; 1.10.6;
use CLOCK_MONOTONIC instead of gettimeofday

branches: 1.9.4; 1.9.8; 1.9.10; 1.9.16;
various updates for xorg-server 1.10.3.

many build updates and fixes for xorg-server 1.9.2.

updates for Mesa 7.8.2:
- build glsl as a host tool
- add the glsl objects to libmesa
- add/remove new/deleted sources for various components
- adjust the libmesa/libGL builds to pull in the new glsl objects
- re-apply the BUILDSYMLINK hack for eval.c/pixel.c/pixelstore.c
- use glsl to build the slang headers on the fly

XXX: use -Wno-error for files that use old foostr.h includes that now have
XXX: #warning's in them.

upgrade the build framework for xorg-server 1.6.

this doesn't quite work yet. Xvfb and Xnest attempt to link but
have missing symbols. Xorg doesn't build all its components yet.

branches: 1.4.2; 1.4.6; 1.4.8; 1.4.14;
stop using XSERVERINCDIR since it was referencing src/x11 reachover
this is not correct for xorg reachover

add ${X11FLAGS.EXTENSION}

enable rpmauth.c / secauth.c.

build xorg-server/os

various updates to build with xorg-server 21.1.3.

- the s3, tga, and trident drivers use old functionality and are disabled
- dixmods/fb is removed, main fb has all these now (we retain our revert
of an upstream change here.)
- adjust source lists as necessary
- remove vbe module, now part of int10
- use -lxcvt
- misc clean up
- ramdac loses IBM, BT and TI support (this is one of the problems for
the disabled drivers, but also some structures in RamDac.h are gone
entirely, not copied anywhere.)
- old apm code is gone, all bsd uses pm_noop. now

this probably require a clean build in at least xorg-server and the
drivers, and perhaps the DESTDIR as well. will update src/UPDATING with
details when they are fully known.

Fix build with "USE_SSP" set to "yes"

build updates for xorg-server 1.20.3:
- moved/removed/new files
- don't define HAVE_XORG_CONFIG_H or HAVE_DIX_CONFIG_H if using
${X11FLAGS.DIX} -- already included.

put glxvnd into glx itself for now.

branches: 1.15.10; 1.15.12;
build timingsafe_memcpy.c.

branches: 1.14.2;
various updates:
- port pkgsrc libxshmfence patches
- Xextbuiltin/module is no longer a thing, make it normal
- always need xorg-config.h/xorg-server.h for server components now
- add present, damage, render, Xi, dri, pixman, extension where needed
- fix various CPPFLAGS issues
- deal with moved sdksyms.sh

various build updates for xorg-server 1.18. with this and some other
uncommited work, Xvfb and Xnest both link.

round do of reach over updates for xorg-server 1.18. again, untested,
but this should be much closer to complete for the necessary changes.

branches: 1.11.2;
remove the xfree86 reachover makefiles and the vast majority of
the support in the rest of the source tree.

X11 sets could use some cleaning up perhaps (just deletion, as
we've never really marked the old X11R6 as obsolete for native
xorg using platforms so far either.)

branches: 1.10.2; 1.10.4; 1.10.6;
use CLOCK_MONOTONIC instead of gettimeofday

branches: 1.9.4; 1.9.8; 1.9.10; 1.9.16;
various updates for xorg-server 1.10.3.

many build updates and fixes for xorg-server 1.9.2.

updates for Mesa 7.8.2:
- build glsl as a host tool
- add the glsl objects to libmesa
- add/remove new/deleted sources for various components
- adjust the libmesa/libGL builds to pull in the new glsl objects
- re-apply the BUILDSYMLINK hack for eval.c/pixel.c/pixelstore.c
- use glsl to build the slang headers on the fly

XXX: use -Wno-error for files that use old foostr.h includes that now have
XXX: #warning's in them.

upgrade the build framework for xorg-server 1.6.

this doesn't quite work yet. Xvfb and Xnest attempt to link but
have missing symbols. Xorg doesn't build all its components yet.

branches: 1.4.2; 1.4.6; 1.4.8; 1.4.14;
stop using XSERVERINCDIR since it was referencing src/x11 reachover
this is not correct for xorg reachover

add ${X11FLAGS.EXTENSION}

enable rpmauth.c / secauth.c.

build xorg-server/os

Fix build with "USE_SSP" set to "yes"

build updates for xorg-server 1.20.3:
- moved/removed/new files
- don't define HAVE_XORG_CONFIG_H or HAVE_DIX_CONFIG_H if using
${X11FLAGS.DIX} -- already included.

put glxvnd into glx itself for now.

branches: 1.15.10;
build timingsafe_memcpy.c.

branches: 1.14.2;
various updates:
- port pkgsrc libxshmfence patches
- Xextbuiltin/module is no longer a thing, make it normal
- always need xorg-config.h/xorg-server.h for server components now
- add present, damage, render, Xi, dri, pixman, extension where needed
- fix various CPPFLAGS issues
- deal with moved sdksyms.sh

various build updates for xorg-server 1.18. with this and some other
uncommited work, Xvfb and Xnest both link.

round do of reach over updates for xorg-server 1.18. again, untested,
but this should be much closer to complete for the necessary changes.

branches: 1.11.2;
remove the xfree86 reachover makefiles and the vast majority of
the support in the rest of the source tree.

X11 sets could use some cleaning up perhaps (just deletion, as
we've never really marked the old X11R6 as obsolete for native
xorg using platforms so far either.)

branches: 1.10.2; 1.10.4; 1.10.6;
use CLOCK_MONOTONIC instead of gettimeofday

branches: 1.9.4; 1.9.8; 1.9.10; 1.9.16;
various updates for xorg-server 1.10.3.

many build updates and fixes for xorg-server 1.9.2.

updates for Mesa 7.8.2:
- build glsl as a host tool
- add the glsl objects to libmesa
- add/remove new/deleted sources for various components
- adjust the libmesa/libGL builds to pull in the new glsl objects
- re-apply the BUILDSYMLINK hack for eval.c/pixel.c/pixelstore.c
- use glsl to build the slang headers on the fly

XXX: use -Wno-error for files that use old foostr.h includes that now have
XXX: #warning's in them.

upgrade the build framework for xorg-server 1.6.

this doesn't quite work yet. Xvfb and Xnest attempt to link but
have missing symbols. Xorg doesn't build all its components yet.

branches: 1.4.2; 1.4.6; 1.4.8; 1.4.14;
stop using XSERVERINCDIR since it was referencing src/x11 reachover
this is not correct for xorg reachover

add ${X11FLAGS.EXTENSION}

enable rpmauth.c / secauth.c.

build xorg-server/os

build timingsafe_memcpy.c.

various updates:
- port pkgsrc libxshmfence patches
- Xextbuiltin/module is no longer a thing, make it normal
- always need xorg-config.h/xorg-server.h for server components now
- add present, damage, render, Xi, dri, pixman, extension where needed
- fix various CPPFLAGS issues
- deal with moved sdksyms.sh

various build updates for xorg-server 1.18. with this and some other
uncommited work, Xvfb and Xnest both link.

round do of reach over updates for xorg-server 1.18. again, untested,
but this should be much closer to complete for the necessary changes.

remove the xfree86 reachover makefiles and the vast majority of
the support in the rest of the source tree.

X11 sets could use some cleaning up perhaps (just deletion, as
we've never really marked the old X11R6 as obsolete for native
xorg using platforms so far either.)

use CLOCK_MONOTONIC instead of gettimeofday

branches: 1.9.8;
various updates for xorg-server 1.10.3.

many build updates and fixes for xorg-server 1.9.2.

updates for Mesa 7.8.2:
- build glsl as a host tool
- add the glsl objects to libmesa
- add/remove new/deleted sources for various components
- adjust the libmesa/libGL builds to pull in the new glsl objects
- re-apply the BUILDSYMLINK hack for eval.c/pixel.c/pixelstore.c
- use glsl to build the slang headers on the fly

XXX: use -Wno-error for files that use old foostr.h includes that now have
XXX: #warning's in them.

upgrade the build framework for xorg-server 1.6.

this doesn't quite work yet. Xvfb and Xnest attempt to link but
have missing symbols. Xorg doesn't build all its components yet.

branches: 1.4.2; 1.4.6; 1.4.8; 1.4.14;
stop using XSERVERINCDIR since it was referencing src/x11 reachover
this is not correct for xorg reachover

add ${X11FLAGS.EXTENSION}

enable rpmauth.c / secauth.c.

build xorg-server/os

various updates:
- port pkgsrc libxshmfence patches
- Xextbuiltin/module is no longer a thing, make it normal
- always need xorg-config.h/xorg-server.h for server components now
- add present, damage, render, Xi, dri, pixman, extension where needed
- fix various CPPFLAGS issues
- deal with moved sdksyms.sh

various build updates for xorg-server 1.18. with this and some other
uncommited work, Xvfb and Xnest both link.

round do of reach over updates for xorg-server 1.18. again, untested,
but this should be much closer to complete for the necessary changes.

remove the xfree86 reachover makefiles and the vast majority of
the support in the rest of the source tree.

X11 sets could use some cleaning up perhaps (just deletion, as
we've never really marked the old X11R6 as obsolete for native
xorg using platforms so far either.)

use CLOCK_MONOTONIC instead of gettimeofday

branches: 1.9.8;
various updates for xorg-server 1.10.3.

many build updates and fixes for xorg-server 1.9.2.

updates for Mesa 7.8.2:
- build glsl as a host tool
- add the glsl objects to libmesa
- add/remove new/deleted sources for various components
- adjust the libmesa/libGL builds to pull in the new glsl objects
- re-apply the BUILDSYMLINK hack for eval.c/pixel.c/pixelstore.c
- use glsl to build the slang headers on the fly

XXX: use -Wno-error for files that use old foostr.h includes that now have
XXX: #warning's in them.

upgrade the build framework for xorg-server 1.6.

this doesn't quite work yet. Xvfb and Xnest attempt to link but
have missing symbols. Xorg doesn't build all its components yet.

branches: 1.4.2; 1.4.6; 1.4.8; 1.4.14;
stop using XSERVERINCDIR since it was referencing src/x11 reachover
this is not correct for xorg reachover

add ${X11FLAGS.EXTENSION}

enable rpmauth.c / secauth.c.

build xorg-server/os