Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC: r267376

Add a zlib pkg-config file (more and more ports requires it)

Approved by: delphij

MFC r267378:

Fix path for zlib examples, this have no runtime effect and was
overlooked when I was doing zlib update.

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFV: Update zlib to 1.2.7.

(x86 assembler optimization disabled for now because it
requires the new .cfi_* directives that is not supported
by base system binutils).

MFC after: 1 week

Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to
get rid of testing explicitly for clang (using ${CC:T:Mclang}) in
individual Makefiles.

Instead, use the following extra macros, for use with clang:
- NO_WERROR.clang (disables -Werror)
- NO_WCAST_ALIGN.clang (disables -Wcast-align)
- NO_WFORMAT.clang (disables -Wformat and friends)
- CLANG_NO_IAS (disables integrated assembler)
- CLANG_OPT_SMALL (adds flags for extra small size optimizations)

As a side effect, this enables setting CC/CXX/CPP in src.conf instead of
make.conf! For clang, use the following:

CC=clang
CXX=clang++
CPP=clang-cpp

MFC after: 2 weeks

Disable gvmat64.S, the assembler version of longest_match for now.

PR: kern/154073
MFC after: 3 days
Approved by: re (kib)

Upgrade our copy of llvm/clang to r126079, from upstream's trunk.

This contains many improvements, primarily better C++ support, an
integrated assembler for x86 and support for -pg.

Fix some leftover binaries and shared libraries in the system that still
have an executable stack, due to linking in hand-assembled .S or .s
files, that have no .GNU-stack sections:

RWX --- --- /lib/libcrypto.so.6
RWX --- --- /lib/libmd.so.5
RWX --- --- /lib/libz.so.6
RWX --- --- /lib/libzpool.so.2
RWX --- --- /usr/lib/liblzma.so.5

These were found using scanelf, from the sysutils/pax-utils port.

Reviewed by: kib

Update to zlib 1.2.4 and add versioned symbols to the
library.

Sponsored by: iXsystems, Inc.

Build lib/ with WARNS=6 by default.

Similar to libexec/, do the same with lib/. Make WARNS=6 the norm and
lower it when needed.

I'm setting WARNS?=0 for secure/. It seems secure/ includes the
Makefile.inc provided by lib/. I'm not going to touch that directory.
Most of the code there is contributed anyway.

Remove libz and pppd redundancy

Update makefile for zlib 1.2.1.

Stage 3 of dynamic root support. Make all the libraries needed to run
binaries in /bin and /sbin installed in /lib. Only the versioned files
reside in /lib, the .so symlink continues to live /usr/lib so the
toolchain doesn't need to be modified.

Add zopen(), a stdio wrapper for gzipped data streams.

Obtained from: NetBSD

MAN[1-9] -> MAN.

Add appropriate defines to use snprintf/vsnprintf instead of
sprintf/vsprintf.

Approved by: peter

Replace beforeinstall target with new variables used by .mk system.

Reviewed by: marcel, and make world

$Id$ -> $FreeBSD$

Backup out the last commit, it was already there.

Noticed by: bde

Manpages not installed
PR: 6327
Reviewed by: phk
Submitted by: Chia-liang Kao <clkao@cirx.org>

Install manpage too

foo.gz is created by 'make test' so add it to CLEANFILES.

Back out an easy $FreeBSD$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Clean up the beforeinstall target a bit more, bde pointed out that the old
one was a mess. (I was in a 'talk' session at the time, can you tell? :-)

oops.. attempted to install header files from wrong directory..

Add a bmakefile for zlib.