bsd.own.mk: rename GCC_NO_* to CC_WNO_*

Rename compiler-warning-disable variables from
GCC_NO_warning
to
CC_WNO_warning
where warning is the full warning name as used by the compiler.

GCC_NO_IMPLICIT_FALLTHRU is CC_WNO_IMPLICIT_FALLTHROUGH

Using the convention CC_compilerflag, where compilerflag
is based on the full compiler flag name.

fix various typos, mainly in comments, but also in man pages and log messages.

use GCC_NO_IMPLICIT_FALLTHRU.

convert HAVE_GCC == 7 to HAVE_GCC >= 7.

- use -Wno-error=implicit-fallthrough with GCC7.

branches: 1.23.14;
Adapt to new zlib

branches: 1.22.8;
Install a pkg-config file for zlib.

branches: 1.21.2;
These directories don't handle WARNS=5

branches: 1.20.34;
Add new Makefile knob, USE_FORT, which extends USE_SSP by turning on the
FORTIFY_SOURCE feature of libssp, thus checking the size of arguments to
various string and memory copy and set functions (as well as a few system
calls and other miscellany) where known at function entry. RedHat has
evidently built all "core system packages" with this option for some time.

This option should be used at the top of Makefiles (or Makefile.inc where
this is used for subdirectories) but after any setting of LIB.

This is only useful for userland code, and cannot be used in libc or in
any code which includes the libc internals, because it overrides certain
libc functions with macros. Some effort has been made to make USE_FORT=yes
work correctly for a full-system build by having the bsd.sys.mk logic
disable the feature where it should not be used (libc, libssp iteself,
the kernel) but no attempt has been made to build the entire system with
USE_FORT and doing so will doubtless expose numerous bugs and misfeatures.

Adjust the system build so that all programs and libraries that are setuid,
directly handle network data (including serial comm data), perform
authentication, or appear likely to have (or have a history of having)
data-driven bugs (e.g. file(1)) are built with USE_FORT=yes by default,
with the exception of libc, which cannot use USE_FORT and thus uses
only USE_SSP by default. Tested on i386 with no ill results; USE_FORT=no
per-directory or in a system build will disable if desired.

use zlib-1.2.3

Add zlib(3) provided by jmc@openbsd -- thank you!

Explicitly move setting of NOxxx and USE_SHLIBDIR to the top of the
Makefile (before including <bsd.own.mk>)

* Add user-controlled mk.conf variables
- SHLIBDIR Location to install shared libraries if ${USE_SHLIBDIR}
is "yes". Defaults to "/usr/lib".

- USE_SHLIBDIR If "yes", install shared libraries in ${SHLIBDIR}
instead of ${LIBDIR}. Defaults to "no".
Sets ${_LIBSODIR} to the appropriate value.
This may be set by individual Makefiles as well.

- SHLINKDIR Location of shared linker. Defaults to "/usr/libexec".
If != "/usr/libexec", change the dynamic-linker
encoded in shared programs

* Set USE_SHLIBDIR for libraries used by /bin and /sbin:
libc libcrypt libcrypto libedit libipsec libkvm libm libmi387
libtermcap libutil libz

* If ${_LIBSODIR} != ${LIBDIR}, add symlinks from ${LIBDIR}/${LIB}.so*
to ${_LIBSODIR}/${LIB}.so* for compatibility.

* Always install /sbin/init statically (for now)


The net effect of these changes depends on how the variables are set:

1.) If nothing is set or changed, there is no change from the
current behaviour:
- Static /bin, /sbin, and bits of /usr/*
- Dynamic rest
- Shared linker is /usr/libexec/ld*so

2.) If the following make variables are set:
LDSTATIC=
SHLINKDIR=/lib
SHLIBDIR=/lib
Then the behaviour becomes:
- Dynamic tools
- .so libraries used by /bin and /sbin are installed to /lib,
with symlinks from /usr/lib/lib*so to -> /lib/lib*so
where appropriate
- Shared linker is /lib/ld*so

3.) As per 2.), but add the following variable:
USE_SHLIBDIR=yes
This forces all .so's to be instaleld in /lib (with compat
symlinks), not just those tagged by their Makefiles to be.
Again, compat symlinks are installed

Readability cleanups; MKfoo=no -> NOfoo.

make z_off_t into off_t, which used to be "long" by mistake.
backward compatibility functions are supplied.

XXX increase shlib major, or minor?

branches: 1.13.2;
libz works much better when the examples aren't compiled into the
library. This caused severe pain with c++, as the example contained
a main().

branches: 1.12.2;
convert from NOxxx= to MKxxx=no.
include <bsd.own.mk> if testing a MKxxx variable.

Resolve import conflicts.

use CPPFLAGS instead of CFLAGS

branches: 1.9.2;
- define WARNS?=1 in the top-level Makefile.inc, and don't define
anywhere else.
- for now, override WARNS=0 in librpcsvc and libwrap, until they're
cleaned up
- rcsid police

lib is now clean (except for librpcsvc and libwrap) on the i386, and
this should motivate the other ports to fix any other minor problems
that their compilers pick up that the i386 version doesn't.

WARNSify

Remove the uneeded HDRS= line and add zconf.h to the INCS= line.

Remove _ZLIB_PRIVATE and all related changes. The "exported" API
of this library includes the typedefs in zconf.h so export it too.
Our zlib should now work with "png" (fixes PR lib/3030).

Makefile cleanups:
use INCS variable to install includes and FILES to install objects.

Use ${INSTALL}.

RCS ID police: add NetBSD RCS IDs to everything. Since it was imported with
normal RCS IDs apparently unmodified (i.e. they were clobbered), remove
the normal Id tags so they cause fewer conflicts later.

clean up 'make test' so that it works even in the presence of
'obj' dirs, and added minigzip to CLEANFILES.

Separate interface from implementation so that zlib.h can be
included without the other, private header files. Only zlib.h
should be installed in /usr/include; all others are private.
The Makefile has a "test" rule to verify that minigzip.c can
be compiled using only zlib.h (and that it actually works).
Note: This file has extensive modifications.

fix various typos, mainly in comments, but also in man pages and log messages.

use GCC_NO_IMPLICIT_FALLTHRU.

convert HAVE_GCC == 7 to HAVE_GCC >= 7.

- use -Wno-error=implicit-fallthrough with GCC7.

branches: 1.23.14;
Adapt to new zlib

branches: 1.22.8;
Install a pkg-config file for zlib.

branches: 1.21.2;
These directories don't handle WARNS=5

branches: 1.20.34;
Add new Makefile knob, USE_FORT, which extends USE_SSP by turning on the
FORTIFY_SOURCE feature of libssp, thus checking the size of arguments to
various string and memory copy and set functions (as well as a few system
calls and other miscellany) where known at function entry. RedHat has
evidently built all "core system packages" with this option for some time.

This option should be used at the top of Makefiles (or Makefile.inc where
this is used for subdirectories) but after any setting of LIB.

This is only useful for userland code, and cannot be used in libc or in
any code which includes the libc internals, because it overrides certain
libc functions with macros. Some effort has been made to make USE_FORT=yes
work correctly for a full-system build by having the bsd.sys.mk logic
disable the feature where it should not be used (libc, libssp iteself,
the kernel) but no attempt has been made to build the entire system with
USE_FORT and doing so will doubtless expose numerous bugs and misfeatures.

Adjust the system build so that all programs and libraries that are setuid,
directly handle network data (including serial comm data), perform
authentication, or appear likely to have (or have a history of having)
data-driven bugs (e.g. file(1)) are built with USE_FORT=yes by default,
with the exception of libc, which cannot use USE_FORT and thus uses
only USE_SSP by default. Tested on i386 with no ill results; USE_FORT=no
per-directory or in a system build will disable if desired.

use zlib-1.2.3

Add zlib(3) provided by jmc@openbsd -- thank you!

Explicitly move setting of NOxxx and USE_SHLIBDIR to the top of the
Makefile (before including <bsd.own.mk>)

* Add user-controlled mk.conf variables
- SHLIBDIR Location to install shared libraries if ${USE_SHLIBDIR}
is "yes". Defaults to "/usr/lib".

- USE_SHLIBDIR If "yes", install shared libraries in ${SHLIBDIR}
instead of ${LIBDIR}. Defaults to "no".
Sets ${_LIBSODIR} to the appropriate value.
This may be set by individual Makefiles as well.

- SHLINKDIR Location of shared linker. Defaults to "/usr/libexec".
If != "/usr/libexec", change the dynamic-linker
encoded in shared programs

* Set USE_SHLIBDIR for libraries used by /bin and /sbin:
libc libcrypt libcrypto libedit libipsec libkvm libm libmi387
libtermcap libutil libz

* If ${_LIBSODIR} != ${LIBDIR}, add symlinks from ${LIBDIR}/${LIB}.so*
to ${_LIBSODIR}/${LIB}.so* for compatibility.

* Always install /sbin/init statically (for now)


The net effect of these changes depends on how the variables are set:

1.) If nothing is set or changed, there is no change from the
current behaviour:
- Static /bin, /sbin, and bits of /usr/*
- Dynamic rest
- Shared linker is /usr/libexec/ld*so

2.) If the following make variables are set:
LDSTATIC=
SHLINKDIR=/lib
SHLIBDIR=/lib
Then the behaviour becomes:
- Dynamic tools
- .so libraries used by /bin and /sbin are installed to /lib,
with symlinks from /usr/lib/lib*so to -> /lib/lib*so
where appropriate
- Shared linker is /lib/ld*so

3.) As per 2.), but add the following variable:
USE_SHLIBDIR=yes
This forces all .so's to be instaleld in /lib (with compat
symlinks), not just those tagged by their Makefiles to be.
Again, compat symlinks are installed

Readability cleanups; MKfoo=no -> NOfoo.

make z_off_t into off_t, which used to be "long" by mistake.
backward compatibility functions are supplied.

XXX increase shlib major, or minor?

branches: 1.13.2;
libz works much better when the examples aren't compiled into the
library. This caused severe pain with c++, as the example contained
a main().

branches: 1.12.2;
convert from NOxxx= to MKxxx=no.
include <bsd.own.mk> if testing a MKxxx variable.

Resolve import conflicts.

use CPPFLAGS instead of CFLAGS

branches: 1.9.2;
- define WARNS?=1 in the top-level Makefile.inc, and don't define
anywhere else.
- for now, override WARNS=0 in librpcsvc and libwrap, until they're
cleaned up
- rcsid police

lib is now clean (except for librpcsvc and libwrap) on the i386, and
this should motivate the other ports to fix any other minor problems
that their compilers pick up that the i386 version doesn't.

WARNSify

Remove the uneeded HDRS= line and add zconf.h to the INCS= line.

Remove _ZLIB_PRIVATE and all related changes. The "exported" API
of this library includes the typedefs in zconf.h so export it too.
Our zlib should now work with "png" (fixes PR lib/3030).

Makefile cleanups:
use INCS variable to install includes and FILES to install objects.

Use ${INSTALL}.

RCS ID police: add NetBSD RCS IDs to everything. Since it was imported with
normal RCS IDs apparently unmodified (i.e. they were clobbered), remove
the normal Id tags so they cause fewer conflicts later.

clean up 'make test' so that it works even in the presence of
'obj' dirs, and added minigzip to CLEANFILES.

Separate interface from implementation so that zlib.h can be
included without the other, private header files. Only zlib.h
should be installed in /usr/include; all others are private.
The Makefile has a "test" rule to verify that minigzip.c can
be compiled using only zlib.h (and that it actually works).
Note: This file has extensive modifications.

use GCC_NO_IMPLICIT_FALLTHRU.

convert HAVE_GCC == 7 to HAVE_GCC >= 7.

- use -Wno-error=implicit-fallthrough with GCC7.

branches: 1.23.14;
Adapt to new zlib

branches: 1.22.8;
Install a pkg-config file for zlib.

branches: 1.21.2;
These directories don't handle WARNS=5

branches: 1.20.34;
Add new Makefile knob, USE_FORT, which extends USE_SSP by turning on the
FORTIFY_SOURCE feature of libssp, thus checking the size of arguments to
various string and memory copy and set functions (as well as a few system
calls and other miscellany) where known at function entry. RedHat has
evidently built all "core system packages" with this option for some time.

This option should be used at the top of Makefiles (or Makefile.inc where
this is used for subdirectories) but after any setting of LIB.

This is only useful for userland code, and cannot be used in libc or in
any code which includes the libc internals, because it overrides certain
libc functions with macros. Some effort has been made to make USE_FORT=yes
work correctly for a full-system build by having the bsd.sys.mk logic
disable the feature where it should not be used (libc, libssp iteself,
the kernel) but no attempt has been made to build the entire system with
USE_FORT and doing so will doubtless expose numerous bugs and misfeatures.

Adjust the system build so that all programs and libraries that are setuid,
directly handle network data (including serial comm data), perform
authentication, or appear likely to have (or have a history of having)
data-driven bugs (e.g. file(1)) are built with USE_FORT=yes by default,
with the exception of libc, which cannot use USE_FORT and thus uses
only USE_SSP by default. Tested on i386 with no ill results; USE_FORT=no
per-directory or in a system build will disable if desired.

use zlib-1.2.3

Add zlib(3) provided by jmc@openbsd -- thank you!

Explicitly move setting of NOxxx and USE_SHLIBDIR to the top of the
Makefile (before including <bsd.own.mk>)

* Add user-controlled mk.conf variables
- SHLIBDIR Location to install shared libraries if ${USE_SHLIBDIR}
is "yes". Defaults to "/usr/lib".

- USE_SHLIBDIR If "yes", install shared libraries in ${SHLIBDIR}
instead of ${LIBDIR}. Defaults to "no".
Sets ${_LIBSODIR} to the appropriate value.
This may be set by individual Makefiles as well.

- SHLINKDIR Location of shared linker. Defaults to "/usr/libexec".
If != "/usr/libexec", change the dynamic-linker
encoded in shared programs

* Set USE_SHLIBDIR for libraries used by /bin and /sbin:
libc libcrypt libcrypto libedit libipsec libkvm libm libmi387
libtermcap libutil libz

* If ${_LIBSODIR} != ${LIBDIR}, add symlinks from ${LIBDIR}/${LIB}.so*
to ${_LIBSODIR}/${LIB}.so* for compatibility.

* Always install /sbin/init statically (for now)


The net effect of these changes depends on how the variables are set:

1.) If nothing is set or changed, there is no change from the
current behaviour:
- Static /bin, /sbin, and bits of /usr/*
- Dynamic rest
- Shared linker is /usr/libexec/ld*so

2.) If the following make variables are set:
LDSTATIC=
SHLINKDIR=/lib
SHLIBDIR=/lib
Then the behaviour becomes:
- Dynamic tools
- .so libraries used by /bin and /sbin are installed to /lib,
with symlinks from /usr/lib/lib*so to -> /lib/lib*so
where appropriate
- Shared linker is /lib/ld*so

3.) As per 2.), but add the following variable:
USE_SHLIBDIR=yes
This forces all .so's to be instaleld in /lib (with compat
symlinks), not just those tagged by their Makefiles to be.
Again, compat symlinks are installed

Readability cleanups; MKfoo=no -> NOfoo.

make z_off_t into off_t, which used to be "long" by mistake.
backward compatibility functions are supplied.

XXX increase shlib major, or minor?

branches: 1.13.2;
libz works much better when the examples aren't compiled into the
library. This caused severe pain with c++, as the example contained
a main().

branches: 1.12.2;
convert from NOxxx= to MKxxx=no.
include <bsd.own.mk> if testing a MKxxx variable.

Resolve import conflicts.

use CPPFLAGS instead of CFLAGS

branches: 1.9.2;
- define WARNS?=1 in the top-level Makefile.inc, and don't define
anywhere else.
- for now, override WARNS=0 in librpcsvc and libwrap, until they're
cleaned up
- rcsid police

lib is now clean (except for librpcsvc and libwrap) on the i386, and
this should motivate the other ports to fix any other minor problems
that their compilers pick up that the i386 version doesn't.

WARNSify

Remove the uneeded HDRS= line and add zconf.h to the INCS= line.

Remove _ZLIB_PRIVATE and all related changes. The "exported" API
of this library includes the typedefs in zconf.h so export it too.
Our zlib should now work with "png" (fixes PR lib/3030).

Makefile cleanups:
use INCS variable to install includes and FILES to install objects.

Use ${INSTALL}.

RCS ID police: add NetBSD RCS IDs to everything. Since it was imported with
normal RCS IDs apparently unmodified (i.e. they were clobbered), remove
the normal Id tags so they cause fewer conflicts later.

clean up 'make test' so that it works even in the presence of
'obj' dirs, and added minigzip to CLEANFILES.

Separate interface from implementation so that zlib.h can be
included without the other, private header files. Only zlib.h
should be installed in /usr/include; all others are private.
The Makefile has a "test" rule to verify that minigzip.c can
be compiled using only zlib.h (and that it actually works).
Note: This file has extensive modifications.

convert HAVE_GCC == 7 to HAVE_GCC >= 7.

- use -Wno-error=implicit-fallthrough with GCC7.

branches: 1.23.14;
Adapt to new zlib

branches: 1.22.8;
Install a pkg-config file for zlib.

branches: 1.21.2;
These directories don't handle WARNS=5

branches: 1.20.34;
Add new Makefile knob, USE_FORT, which extends USE_SSP by turning on the
FORTIFY_SOURCE feature of libssp, thus checking the size of arguments to
various string and memory copy and set functions (as well as a few system
calls and other miscellany) where known at function entry. RedHat has
evidently built all "core system packages" with this option for some time.

This option should be used at the top of Makefiles (or Makefile.inc where
this is used for subdirectories) but after any setting of LIB.

This is only useful for userland code, and cannot be used in libc or in
any code which includes the libc internals, because it overrides certain
libc functions with macros. Some effort has been made to make USE_FORT=yes
work correctly for a full-system build by having the bsd.sys.mk logic
disable the feature where it should not be used (libc, libssp iteself,
the kernel) but no attempt has been made to build the entire system with
USE_FORT and doing so will doubtless expose numerous bugs and misfeatures.

Adjust the system build so that all programs and libraries that are setuid,
directly handle network data (including serial comm data), perform
authentication, or appear likely to have (or have a history of having)
data-driven bugs (e.g. file(1)) are built with USE_FORT=yes by default,
with the exception of libc, which cannot use USE_FORT and thus uses
only USE_SSP by default. Tested on i386 with no ill results; USE_FORT=no
per-directory or in a system build will disable if desired.

use zlib-1.2.3

Add zlib(3) provided by jmc@openbsd -- thank you!

Explicitly move setting of NOxxx and USE_SHLIBDIR to the top of the
Makefile (before including <bsd.own.mk>)

* Add user-controlled mk.conf variables
- SHLIBDIR Location to install shared libraries if ${USE_SHLIBDIR}
is "yes". Defaults to "/usr/lib".

- USE_SHLIBDIR If "yes", install shared libraries in ${SHLIBDIR}
instead of ${LIBDIR}. Defaults to "no".
Sets ${_LIBSODIR} to the appropriate value.
This may be set by individual Makefiles as well.

- SHLINKDIR Location of shared linker. Defaults to "/usr/libexec".
If != "/usr/libexec", change the dynamic-linker
encoded in shared programs

* Set USE_SHLIBDIR for libraries used by /bin and /sbin:
libc libcrypt libcrypto libedit libipsec libkvm libm libmi387
libtermcap libutil libz

* If ${_LIBSODIR} != ${LIBDIR}, add symlinks from ${LIBDIR}/${LIB}.so*
to ${_LIBSODIR}/${LIB}.so* for compatibility.

* Always install /sbin/init statically (for now)


The net effect of these changes depends on how the variables are set:

1.) If nothing is set or changed, there is no change from the
current behaviour:
- Static /bin, /sbin, and bits of /usr/*
- Dynamic rest
- Shared linker is /usr/libexec/ld*so

2.) If the following make variables are set:
LDSTATIC=
SHLINKDIR=/lib
SHLIBDIR=/lib
Then the behaviour becomes:
- Dynamic tools
- .so libraries used by /bin and /sbin are installed to /lib,
with symlinks from /usr/lib/lib*so to -> /lib/lib*so
where appropriate
- Shared linker is /lib/ld*so

3.) As per 2.), but add the following variable:
USE_SHLIBDIR=yes
This forces all .so's to be instaleld in /lib (with compat
symlinks), not just those tagged by their Makefiles to be.
Again, compat symlinks are installed

Readability cleanups; MKfoo=no -> NOfoo.

make z_off_t into off_t, which used to be "long" by mistake.
backward compatibility functions are supplied.

XXX increase shlib major, or minor?

branches: 1.13.2;
libz works much better when the examples aren't compiled into the
library. This caused severe pain with c++, as the example contained
a main().

branches: 1.12.2;
convert from NOxxx= to MKxxx=no.
include <bsd.own.mk> if testing a MKxxx variable.

Resolve import conflicts.

use CPPFLAGS instead of CFLAGS

branches: 1.9.2;
- define WARNS?=1 in the top-level Makefile.inc, and don't define
anywhere else.
- for now, override WARNS=0 in librpcsvc and libwrap, until they're
cleaned up
- rcsid police

lib is now clean (except for librpcsvc and libwrap) on the i386, and
this should motivate the other ports to fix any other minor problems
that their compilers pick up that the i386 version doesn't.

WARNSify

Remove the uneeded HDRS= line and add zconf.h to the INCS= line.

Remove _ZLIB_PRIVATE and all related changes. The "exported" API
of this library includes the typedefs in zconf.h so export it too.
Our zlib should now work with "png" (fixes PR lib/3030).

Makefile cleanups:
use INCS variable to install includes and FILES to install objects.

Use ${INSTALL}.

RCS ID police: add NetBSD RCS IDs to everything. Since it was imported with
normal RCS IDs apparently unmodified (i.e. they were clobbered), remove
the normal Id tags so they cause fewer conflicts later.

clean up 'make test' so that it works even in the presence of
'obj' dirs, and added minigzip to CLEANFILES.

Separate interface from implementation so that zlib.h can be
included without the other, private header files. Only zlib.h
should be installed in /usr/include; all others are private.
The Makefile has a "test" rule to verify that minigzip.c can
be compiled using only zlib.h (and that it actually works).
Note: This file has extensive modifications.

- use -Wno-error=implicit-fallthrough with GCC7.

Adapt to new zlib

branches: 1.22.8;
Install a pkg-config file for zlib.

branches: 1.21.2;
These directories don't handle WARNS=5

branches: 1.20.34;
Add new Makefile knob, USE_FORT, which extends USE_SSP by turning on the
FORTIFY_SOURCE feature of libssp, thus checking the size of arguments to
various string and memory copy and set functions (as well as a few system
calls and other miscellany) where known at function entry. RedHat has
evidently built all "core system packages" with this option for some time.

This option should be used at the top of Makefiles (or Makefile.inc where
this is used for subdirectories) but after any setting of LIB.

This is only useful for userland code, and cannot be used in libc or in
any code which includes the libc internals, because it overrides certain
libc functions with macros. Some effort has been made to make USE_FORT=yes
work correctly for a full-system build by having the bsd.sys.mk logic
disable the feature where it should not be used (libc, libssp iteself,
the kernel) but no attempt has been made to build the entire system with
USE_FORT and doing so will doubtless expose numerous bugs and misfeatures.

Adjust the system build so that all programs and libraries that are setuid,
directly handle network data (including serial comm data), perform
authentication, or appear likely to have (or have a history of having)
data-driven bugs (e.g. file(1)) are built with USE_FORT=yes by default,
with the exception of libc, which cannot use USE_FORT and thus uses
only USE_SSP by default. Tested on i386 with no ill results; USE_FORT=no
per-directory or in a system build will disable if desired.

use zlib-1.2.3

Add zlib(3) provided by jmc@openbsd -- thank you!

Explicitly move setting of NOxxx and USE_SHLIBDIR to the top of the
Makefile (before including <bsd.own.mk>)

* Add user-controlled mk.conf variables
- SHLIBDIR Location to install shared libraries if ${USE_SHLIBDIR}
is "yes". Defaults to "/usr/lib".

- USE_SHLIBDIR If "yes", install shared libraries in ${SHLIBDIR}
instead of ${LIBDIR}. Defaults to "no".
Sets ${_LIBSODIR} to the appropriate value.
This may be set by individual Makefiles as well.

- SHLINKDIR Location of shared linker. Defaults to "/usr/libexec".
If != "/usr/libexec", change the dynamic-linker
encoded in shared programs

* Set USE_SHLIBDIR for libraries used by /bin and /sbin:
libc libcrypt libcrypto libedit libipsec libkvm libm libmi387
libtermcap libutil libz

* If ${_LIBSODIR} != ${LIBDIR}, add symlinks from ${LIBDIR}/${LIB}.so*
to ${_LIBSODIR}/${LIB}.so* for compatibility.

* Always install /sbin/init statically (for now)


The net effect of these changes depends on how the variables are set:

1.) If nothing is set or changed, there is no change from the
current behaviour:
- Static /bin, /sbin, and bits of /usr/*
- Dynamic rest
- Shared linker is /usr/libexec/ld*so

2.) If the following make variables are set:
LDSTATIC=
SHLINKDIR=/lib
SHLIBDIR=/lib
Then the behaviour becomes:
- Dynamic tools
- .so libraries used by /bin and /sbin are installed to /lib,
with symlinks from /usr/lib/lib*so to -> /lib/lib*so
where appropriate
- Shared linker is /lib/ld*so

3.) As per 2.), but add the following variable:
USE_SHLIBDIR=yes
This forces all .so's to be instaleld in /lib (with compat
symlinks), not just those tagged by their Makefiles to be.
Again, compat symlinks are installed

Readability cleanups; MKfoo=no -> NOfoo.

make z_off_t into off_t, which used to be "long" by mistake.
backward compatibility functions are supplied.

XXX increase shlib major, or minor?

branches: 1.13.2;
libz works much better when the examples aren't compiled into the
library. This caused severe pain with c++, as the example contained
a main().

branches: 1.12.2;
convert from NOxxx= to MKxxx=no.
include <bsd.own.mk> if testing a MKxxx variable.

Resolve import conflicts.

use CPPFLAGS instead of CFLAGS

branches: 1.9.2;
- define WARNS?=1 in the top-level Makefile.inc, and don't define
anywhere else.
- for now, override WARNS=0 in librpcsvc and libwrap, until they're
cleaned up
- rcsid police

lib is now clean (except for librpcsvc and libwrap) on the i386, and
this should motivate the other ports to fix any other minor problems
that their compilers pick up that the i386 version doesn't.

WARNSify

Remove the uneeded HDRS= line and add zconf.h to the INCS= line.

Remove _ZLIB_PRIVATE and all related changes. The "exported" API
of this library includes the typedefs in zconf.h so export it too.
Our zlib should now work with "png" (fixes PR lib/3030).

Makefile cleanups:
use INCS variable to install includes and FILES to install objects.

Use ${INSTALL}.

RCS ID police: add NetBSD RCS IDs to everything. Since it was imported with
normal RCS IDs apparently unmodified (i.e. they were clobbered), remove
the normal Id tags so they cause fewer conflicts later.

clean up 'make test' so that it works even in the presence of
'obj' dirs, and added minigzip to CLEANFILES.

Separate interface from implementation so that zlib.h can be
included without the other, private header files. Only zlib.h
should be installed in /usr/include; all others are private.
The Makefile has a "test" rule to verify that minigzip.c can
be compiled using only zlib.h (and that it actually works).
Note: This file has extensive modifications.

Adapt to new zlib

Install a pkg-config file for zlib.

branches: 1.21.2;
These directories don't handle WARNS=5

branches: 1.20.34;
Add new Makefile knob, USE_FORT, which extends USE_SSP by turning on the
FORTIFY_SOURCE feature of libssp, thus checking the size of arguments to
various string and memory copy and set functions (as well as a few system
calls and other miscellany) where known at function entry. RedHat has
evidently built all "core system packages" with this option for some time.

This option should be used at the top of Makefiles (or Makefile.inc where
this is used for subdirectories) but after any setting of LIB.

This is only useful for userland code, and cannot be used in libc or in
any code which includes the libc internals, because it overrides certain
libc functions with macros. Some effort has been made to make USE_FORT=yes
work correctly for a full-system build by having the bsd.sys.mk logic
disable the feature where it should not be used (libc, libssp iteself,
the kernel) but no attempt has been made to build the entire system with
USE_FORT and doing so will doubtless expose numerous bugs and misfeatures.

Adjust the system build so that all programs and libraries that are setuid,
directly handle network data (including serial comm data), perform
authentication, or appear likely to have (or have a history of having)
data-driven bugs (e.g. file(1)) are built with USE_FORT=yes by default,
with the exception of libc, which cannot use USE_FORT and thus uses
only USE_SSP by default. Tested on i386 with no ill results; USE_FORT=no
per-directory or in a system build will disable if desired.

use zlib-1.2.3

Add zlib(3) provided by jmc@openbsd -- thank you!

Explicitly move setting of NOxxx and USE_SHLIBDIR to the top of the
Makefile (before including <bsd.own.mk>)

* Add user-controlled mk.conf variables
- SHLIBDIR Location to install shared libraries if ${USE_SHLIBDIR}
is "yes". Defaults to "/usr/lib".

- USE_SHLIBDIR If "yes", install shared libraries in ${SHLIBDIR}
instead of ${LIBDIR}. Defaults to "no".
Sets ${_LIBSODIR} to the appropriate value.
This may be set by individual Makefiles as well.

- SHLINKDIR Location of shared linker. Defaults to "/usr/libexec".
If != "/usr/libexec", change the dynamic-linker
encoded in shared programs

* Set USE_SHLIBDIR for libraries used by /bin and /sbin:
libc libcrypt libcrypto libedit libipsec libkvm libm libmi387
libtermcap libutil libz

* If ${_LIBSODIR} != ${LIBDIR}, add symlinks from ${LIBDIR}/${LIB}.so*
to ${_LIBSODIR}/${LIB}.so* for compatibility.

* Always install /sbin/init statically (for now)


The net effect of these changes depends on how the variables are set:

1.) If nothing is set or changed, there is no change from the
current behaviour:
- Static /bin, /sbin, and bits of /usr/*
- Dynamic rest
- Shared linker is /usr/libexec/ld*so

2.) If the following make variables are set:
LDSTATIC=
SHLINKDIR=/lib
SHLIBDIR=/lib
Then the behaviour becomes:
- Dynamic tools
- .so libraries used by /bin and /sbin are installed to /lib,
with symlinks from /usr/lib/lib*so to -> /lib/lib*so
where appropriate
- Shared linker is /lib/ld*so

3.) As per 2.), but add the following variable:
USE_SHLIBDIR=yes
This forces all .so's to be instaleld in /lib (with compat
symlinks), not just those tagged by their Makefiles to be.
Again, compat symlinks are installed

Readability cleanups; MKfoo=no -> NOfoo.

make z_off_t into off_t, which used to be "long" by mistake.
backward compatibility functions are supplied.

XXX increase shlib major, or minor?

branches: 1.13.2;
libz works much better when the examples aren't compiled into the
library. This caused severe pain with c++, as the example contained
a main().

branches: 1.12.2;
convert from NOxxx= to MKxxx=no.
include <bsd.own.mk> if testing a MKxxx variable.

Resolve import conflicts.

use CPPFLAGS instead of CFLAGS

branches: 1.9.2;
- define WARNS?=1 in the top-level Makefile.inc, and don't define
anywhere else.
- for now, override WARNS=0 in librpcsvc and libwrap, until they're
cleaned up
- rcsid police

lib is now clean (except for librpcsvc and libwrap) on the i386, and
this should motivate the other ports to fix any other minor problems
that their compilers pick up that the i386 version doesn't.

WARNSify

Remove the uneeded HDRS= line and add zconf.h to the INCS= line.

Remove _ZLIB_PRIVATE and all related changes. The "exported" API
of this library includes the typedefs in zconf.h so export it too.
Our zlib should now work with "png" (fixes PR lib/3030).

Makefile cleanups:
use INCS variable to install includes and FILES to install objects.

Use ${INSTALL}.

RCS ID police: add NetBSD RCS IDs to everything. Since it was imported with
normal RCS IDs apparently unmodified (i.e. they were clobbered), remove
the normal Id tags so they cause fewer conflicts later.

clean up 'make test' so that it works even in the presence of
'obj' dirs, and added minigzip to CLEANFILES.

Separate interface from implementation so that zlib.h can be
included without the other, private header files. Only zlib.h
should be installed in /usr/include; all others are private.
The Makefile has a "test" rule to verify that minigzip.c can
be compiled using only zlib.h (and that it actually works).
Note: This file has extensive modifications.