kerberos5, libcom_err, others: append to LDFLAGS instead of replacing

Reviewed by: imp, emaste
Differential Revision: https://reviews.freebsd.org/D49548

Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

heimdal: Do not build a redundant source file

Heimdal's lib/hdb/db3.c is only built if DB3 is enabled, i.e. #if HAVE_DB3.
FreeBSD's bdb is DB1. Therefore the entire db3.c file is #ifdef'd out.
Let's

heimdal: Do not build a redundant source file

Heimdal's lib/hdb/db3.c is only built if DB3 is enabled, i.e. #if HAVE_DB3.
FreeBSD's bdb is DB1. Therefore the entire db3.c file is #ifdef'd out.
Let's avoid building a file that results in a useless object file.

MFC after: 1 week

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pkgbase: split kerberos binaries and libs

Summary:
This allows installing packages that depend on kerberos libraries
without pulling in all the binaries. It also moves libgssapi to runtime
to allow

pkgbase: split kerberos binaries and libs

Summary:
This allows installing packages that depend on kerberos libraries
without pulling in all the binaries. It also moves libgssapi to runtime
to allow installing kerbereos libraries without adding a dependancy on
the large utilities package. It makes sense to put libgssapi in runtime
rather than kerberos-lib since this is a plugin layer which is intended
to support any GSS-API mechanisms, not just kerberos.

A good example of a package which uses kerberos libraries without
needing the kerberos utilities is sshd. This uses the kerberos GSS-API
libraries to implement its GSSAPIAuthentication option.

MFC after: 2 weeks

Subscribers: imp

Differential Revision: https://reviews.freebsd.org/D36028

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pkgbase: Create a FreeBSD-kerberos package

This allows users to install or not kerberos related utilities
and libs.

Differential Revision: https://reviews.freebsd.org/D31801

kerberos5: fix the WITH_OPENLDAP build

Restore WARNS to its former glory prior to the global WARNS change to fix
the build.

MFC-after: 3 days

Use ${SRCTOP}/contrib/com_err/com_err.h instead of the installed com_err.h.
This fixes build when com_err.h is not installed.

PR: 234691
MFC after: 1 week

kerberos5: normalize paths using SRCTOP-relative paths or :H when possible

This simplifies make logic/output

MFC after: 1 month
Sponsored by: Dell EMC Isilon

WITH_META_MODE: Don't expect meta files for side-effect generated files.

The first file in these lists will generate everything else so only
it should be getting a .meta file. With bmake's missing=

WITH_META_MODE: Don't expect meta files for side-effect generated files.

The first file in these lists will generate everything else so only
it should be getting a .meta file. With bmake's missing=yes meta
feature these would otherwise cause a rebuild without the
.NOMETA hint.

Sponsored by: EMC / Isilon Storage Division

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MFH

Sponsored by: The FreeBSD Foundation

Merge ^/head r295902 through r296006.

FAST_DEPEND: Always run depend via beforebuild which removes many hacks.

This will generate dependencies rather than depending on the previous behavior
of depending on the guessed OBJS: *.h dependec

FAST_DEPEND: Always run depend via beforebuild which removes many hacks.

This will generate dependencies rather than depending on the previous behavior
of depending on the guessed OBJS: *.h dependecies or a user running
'make depend'.

Experimentation showed that depending only on headers was not enough and
prone to .ORDER errors. Downstream users may also have added
dependencies into beforedepend or afterdepend targets. The safest way to
ensure dependencies are generated before build is to run 'make depend'
beforehand rather than just depending on DPSRCS+SRCS.

Note that the OBJS_DEPEND_GUESS mechanism (a.k.a .if !exists(.depend) then
foo.o: *.h) is still useful as it improves incremental builds with missing
.depend.* files and allows 'make foo.o' to usually work, while this
'beforebuild: depend' ensures that the build will always find all dependencies.
The 'make foo.o' case has no means of a 'beforebuild' hook.

This also removes several hacks in the DIRDEPS_BUILD:
- NO_INSTALL_INCLUDES is no longer needed as it mostly was to work around
.ORDER problems with building the needed headers early.
- DIRDEPS_BUILD: It is no longer necesarry to track "local dependencies" in
Makefile.depend.

These were only in Makefile.depend for 'clean builds' since nothing would
generate the files due to skipping 'make depend' and early dependency
bugs that have been fixed, such as adding headers into SRCS for the
OBJS_DEPEND_GUESS mechanism. Normally if a .depend file does not exist then
a dependency is added by bsd.lib.mk/bsd.prog.mk from OBJS: *.h. However,
meta.autodep.mk creates a .depend file from created meta files and inserts
that into Makefile.depend. It also only tracks *.[ch] files though which can
miss some dependencies that are hooked into 'make depend'. This .depend
that is created then breaks incremental builds due to the !exists(.depend)
checks for OBJS_DEPEND_GUESS. The goal was to skip 'make depend' yet it only
really works the first time. After that files are not generated as expected,
which r288966 tried to address but was using buildfiles: rather than
beforebuild: and was reverted in r291725. As noted previously,
depending only on headers in beforebuild: would create .ORDER errors
in some cases.

meta.autodep.mk is still used to generate Makefile.depend though via:
gendirdeps: Makefile.depend
.END: gendirdeps

This commit allows removing all of the "local dependencies" in
Makefile.depend which cuts down on churn and removes some of the
arch-dependent Makefile.depend files.

The "local dependencies" were also problematic for bootstrapping.

Sponsored by: EMC / Isilon Storage Division

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Merge from head

Sponsored by: Gandi.net

Merge from head

Merge from head

Merge r286744-r287584 from head.

Merge ^/head r286858 through r287489.

Make it buildable with WITH_OPENLDAP, again.

MFC after: 1 week

Catch up with HEAD (r280229-r284686).

Merge ^/head r284188 through r284643.

Merge from head

Add META_MODE support.

Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under

Add META_MODE support.

Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision: D2796
Reviewed by: brooks imp

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Explain why NO_BEFOREBUILD_INCLUDES is needed

MFH: r282615-r283655

Sponsored by: The FreeBSD Foundation