update build infrastructure for llvm-16.0.6

Update build infrastructure for LLVM 10.0.0.

ok hackroom@
tested by plenty

stop using the moribund MLINKS bsd.man.mk feature;
no functional change intended;
OK patrick@

When linking libLLVM.a in clang and lld include it within the
ld --start-group --end-group block. bfd ld seems to need this where
lld doesn't.

Build and install a shared libLLVM, llvm-config and llvm includes.
This is required to build the radeonsi Mesa driver.

ok patrick@

Add infrastructure to install lld as the default linker. The old GNU linker
will be installed as /usr/bin/ld.bfd on supported systems. This allows
users to fall back on the old linker by using the -fuse-ld=bfd option on
systems where lld is the default linker.

Switch armv7 to use lld as the default linker. On arm64 we already use lld
as the default linker. Other platforms will keep using the GNU linker for
now.

ok patrick@, deraadt@, phessler@

Update clang build infrastructure for LLVM 6.0.0.

Add a manual page for lld from lld svn rev 326463 with options not
present in lld 5.0.1 removed (--build-id=fast, -z muldefs,
-z retpolineplt). This includes a bunch of mdoc changes suggested
by schwarze@ that were recently committed upstream.

ok jmc@ schwarze@ kettenis@ deraadt@

Update clang build infrastructure for LLVM 5.0.0.

don't double install ld, some people have already been lost trying
to get out of these makefiles!

okay kettenis@

zap empty depends/silence empty installs.
okay millert@

Take a more radical approach to disabling colours: pretend we don't
HAVE_TERMINFO in our local config.h. Some of the lower levels of LLVM
don't seem to respect our default setting.

As a result, delete the -ltermlib dependency.

Note that this breaks -fcolor-diagnostics=auto. However, fixing the whole
codebase is out of scope for now ...

Prompted by an instance found in the AsmParser by deraadt@

ok kettenis@ patrick@

Do not clobber the default compiler/linker links unless COMPILER_VERSION is
set to clang.

ok jsg@

Update clang build infrastructure for LLVM 4.0.0

Discussed with kettenis@

Always provide clang as cc, c++ and cpp, and lld as ld.

Per discussion with deraadt@

On clang architectures cc, c++ and cpp are provided by clang. Also,
ld is provided by lld.

Compile and install lld as ld.lld, since that's what the ecosystem
is expecting.

Prompted and ok by kettenis@

Include bsd.own.mk in a few more places to pick up mk.conf overrides.
ok patrick@ tb@ kettenis@ phessler@

Add build infrastructure for lld.

ok kettenis@

Update build infrastructure for LLVM 10.0.0.

ok hackroom@
tested by plenty

stop using the moribund MLINKS bsd.man.mk feature;
no functional change intended;
OK patrick@

When linking libLLVM.a in clang and lld include it within the
ld --start-group --end-group block. bfd ld seems to need this where
lld doesn't.

Build and install a shared libLLVM, llvm-config and llvm includes.
This is required to build the radeonsi Mesa driver.

ok patrick@

Add infrastructure to install lld as the default linker. The old GNU linker
will be installed as /usr/bin/ld.bfd on supported systems. This allows
users to fall back on the old linker by using the -fuse-ld=bfd option on
systems where lld is the default linker.

Switch armv7 to use lld as the default linker. On arm64 we already use lld
as the default linker. Other platforms will keep using the GNU linker for
now.

ok patrick@, deraadt@, phessler@

Update clang build infrastructure for LLVM 6.0.0.

Add a manual page for lld from lld svn rev 326463 with options not
present in lld 5.0.1 removed (--build-id=fast, -z muldefs,
-z retpolineplt). This includes a bunch of mdoc changes suggested
by schwarze@ that were recently committed upstream.

ok jmc@ schwarze@ kettenis@ deraadt@

Update clang build infrastructure for LLVM 5.0.0.

don't double install ld, some people have already been lost trying
to get out of these makefiles!

okay kettenis@

zap empty depends/silence empty installs.
okay millert@

Take a more radical approach to disabling colours: pretend we don't
HAVE_TERMINFO in our local config.h. Some of the lower levels of LLVM
don't seem to respect our default setting.

As a result, delete the -ltermlib dependency.

Note that this breaks -fcolor-diagnostics=auto. However, fixing the whole
codebase is out of scope for now ...

Prompted by an instance found in the AsmParser by deraadt@

ok kettenis@ patrick@

Do not clobber the default compiler/linker links unless COMPILER_VERSION is
set to clang.

ok jsg@

Update clang build infrastructure for LLVM 4.0.0

Discussed with kettenis@

Always provide clang as cc, c++ and cpp, and lld as ld.

Per discussion with deraadt@

On clang architectures cc, c++ and cpp are provided by clang. Also,
ld is provided by lld.

Compile and install lld as ld.lld, since that's what the ecosystem
is expecting.

Prompted and ok by kettenis@

Include bsd.own.mk in a few more places to pick up mk.conf overrides.
ok patrick@ tb@ kettenis@ phessler@

Add build infrastructure for lld.

ok kettenis@

stop using the moribund MLINKS bsd.man.mk feature;
no functional change intended;
OK patrick@

When linking libLLVM.a in clang and lld include it within the
ld --start-group --end-group block. bfd ld seems to need this where
lld doesn't.

Build and install a shared libLLVM, llvm-config and llvm includes.
This is required to build the radeonsi Mesa driver.

ok patrick@

Add infrastructure to install lld as the default linker. The old GNU linker
will be installed as /usr/bin/ld.bfd on supported systems. This allows
users to fall back on the old linker by using the -fuse-ld=bfd option on
systems where lld is the default linker.

Switch armv7 to use lld as the default linker. On arm64 we already use lld
as the default linker. Other platforms will keep using the GNU linker for
now.

ok patrick@, deraadt@, phessler@

Update clang build infrastructure for LLVM 6.0.0.

Add a manual page for lld from lld svn rev 326463 with options not
present in lld 5.0.1 removed (--build-id=fast, -z muldefs,
-z retpolineplt). This includes a bunch of mdoc changes suggested
by schwarze@ that were recently committed upstream.

ok jmc@ schwarze@ kettenis@ deraadt@

Update clang build infrastructure for LLVM 5.0.0.

don't double install ld, some people have already been lost trying
to get out of these makefiles!

okay kettenis@

zap empty depends/silence empty installs.
okay millert@

Take a more radical approach to disabling colours: pretend we don't
HAVE_TERMINFO in our local config.h. Some of the lower levels of LLVM
don't seem to respect our default setting.

As a result, delete the -ltermlib dependency.

Note that this breaks -fcolor-diagnostics=auto. However, fixing the whole
codebase is out of scope for now ...

Prompted by an instance found in the AsmParser by deraadt@

ok kettenis@ patrick@

Do not clobber the default compiler/linker links unless COMPILER_VERSION is
set to clang.

ok jsg@

Update clang build infrastructure for LLVM 4.0.0

Discussed with kettenis@

Always provide clang as cc, c++ and cpp, and lld as ld.

Per discussion with deraadt@

On clang architectures cc, c++ and cpp are provided by clang. Also,
ld is provided by lld.

Compile and install lld as ld.lld, since that's what the ecosystem
is expecting.

Prompted and ok by kettenis@

Include bsd.own.mk in a few more places to pick up mk.conf overrides.
ok patrick@ tb@ kettenis@ phessler@

Add build infrastructure for lld.

ok kettenis@

When linking libLLVM.a in clang and lld include it within the
ld --start-group --end-group block. bfd ld seems to need this where
lld doesn't.

Build and install a shared libLLVM, llvm-config and llvm includes.
This is required to build the radeonsi Mesa driver.

ok patrick@

Add infrastructure to install lld as the default linker. The old GNU linker
will be installed as /usr/bin/ld.bfd on supported systems. This allows
users to fall back on the old linker by using the -fuse-ld=bfd option on
systems where lld is the default linker.

Switch armv7 to use lld as the default linker. On arm64 we already use lld
as the default linker. Other platforms will keep using the GNU linker for
now.

ok patrick@, deraadt@, phessler@

Update clang build infrastructure for LLVM 6.0.0.

Add a manual page for lld from lld svn rev 326463 with options not
present in lld 5.0.1 removed (--build-id=fast, -z muldefs,
-z retpolineplt). This includes a bunch of mdoc changes suggested
by schwarze@ that were recently committed upstream.

ok jmc@ schwarze@ kettenis@ deraadt@

Update clang build infrastructure for LLVM 5.0.0.

don't double install ld, some people have already been lost trying
to get out of these makefiles!

okay kettenis@

zap empty depends/silence empty installs.
okay millert@

Take a more radical approach to disabling colours: pretend we don't
HAVE_TERMINFO in our local config.h. Some of the lower levels of LLVM
don't seem to respect our default setting.

As a result, delete the -ltermlib dependency.

Note that this breaks -fcolor-diagnostics=auto. However, fixing the whole
codebase is out of scope for now ...

Prompted by an instance found in the AsmParser by deraadt@

ok kettenis@ patrick@

Do not clobber the default compiler/linker links unless COMPILER_VERSION is
set to clang.

ok jsg@

Update clang build infrastructure for LLVM 4.0.0

Discussed with kettenis@

Always provide clang as cc, c++ and cpp, and lld as ld.

Per discussion with deraadt@

On clang architectures cc, c++ and cpp are provided by clang. Also,
ld is provided by lld.

Compile and install lld as ld.lld, since that's what the ecosystem
is expecting.

Prompted and ok by kettenis@

Include bsd.own.mk in a few more places to pick up mk.conf overrides.
ok patrick@ tb@ kettenis@ phessler@

Add build infrastructure for lld.

ok kettenis@

Build and install a shared libLLVM, llvm-config and llvm includes.
This is required to build the radeonsi Mesa driver.

ok patrick@

Add infrastructure to install lld as the default linker. The old GNU linker
will be installed as /usr/bin/ld.bfd on supported systems. This allows
users to fall back on the old linker by using the -fuse-ld=bfd option on
systems where lld is the default linker.

Switch armv7 to use lld as the default linker. On arm64 we already use lld
as the default linker. Other platforms will keep using the GNU linker for
now.

ok patrick@, deraadt@, phessler@

Update clang build infrastructure for LLVM 6.0.0.

Add a manual page for lld from lld svn rev 326463 with options not
present in lld 5.0.1 removed (--build-id=fast, -z muldefs,
-z retpolineplt). This includes a bunch of mdoc changes suggested
by schwarze@ that were recently committed upstream.

ok jmc@ schwarze@ kettenis@ deraadt@

Update clang build infrastructure for LLVM 5.0.0.

don't double install ld, some people have already been lost trying
to get out of these makefiles!

okay kettenis@

zap empty depends/silence empty installs.
okay millert@

Take a more radical approach to disabling colours: pretend we don't
HAVE_TERMINFO in our local config.h. Some of the lower levels of LLVM
don't seem to respect our default setting.

As a result, delete the -ltermlib dependency.

Note that this breaks -fcolor-diagnostics=auto. However, fixing the whole
codebase is out of scope for now ...

Prompted by an instance found in the AsmParser by deraadt@

ok kettenis@ patrick@

Do not clobber the default compiler/linker links unless COMPILER_VERSION is
set to clang.

ok jsg@

Update clang build infrastructure for LLVM 4.0.0

Discussed with kettenis@

Always provide clang as cc, c++ and cpp, and lld as ld.

Per discussion with deraadt@

On clang architectures cc, c++ and cpp are provided by clang. Also,
ld is provided by lld.

Compile and install lld as ld.lld, since that's what the ecosystem
is expecting.

Prompted and ok by kettenis@

Include bsd.own.mk in a few more places to pick up mk.conf overrides.
ok patrick@ tb@ kettenis@ phessler@

Add build infrastructure for lld.

ok kettenis@

Add infrastructure to install lld as the default linker. The old GNU linker
will be installed as /usr/bin/ld.bfd on supported systems. This allows
users to fall back on the old linker by using the -fuse-ld=bfd option on
systems where lld is the default linker.

Switch armv7 to use lld as the default linker. On arm64 we already use lld
as the default linker. Other platforms will keep using the GNU linker for
now.

ok patrick@, deraadt@, phessler@

Update clang build infrastructure for LLVM 6.0.0.

Add a manual page for lld from lld svn rev 326463 with options not
present in lld 5.0.1 removed (--build-id=fast, -z muldefs,
-z retpolineplt). This includes a bunch of mdoc changes suggested
by schwarze@ that were recently committed upstream.

ok jmc@ schwarze@ kettenis@ deraadt@

Update clang build infrastructure for LLVM 5.0.0.

don't double install ld, some people have already been lost trying
to get out of these makefiles!

okay kettenis@

zap empty depends/silence empty installs.
okay millert@

Take a more radical approach to disabling colours: pretend we don't
HAVE_TERMINFO in our local config.h. Some of the lower levels of LLVM
don't seem to respect our default setting.

As a result, delete the -ltermlib dependency.

Note that this breaks -fcolor-diagnostics=auto. However, fixing the whole
codebase is out of scope for now ...

Prompted by an instance found in the AsmParser by deraadt@

ok kettenis@ patrick@

Do not clobber the default compiler/linker links unless COMPILER_VERSION is
set to clang.

ok jsg@

Update clang build infrastructure for LLVM 4.0.0

Discussed with kettenis@

Always provide clang as cc, c++ and cpp, and lld as ld.

Per discussion with deraadt@

On clang architectures cc, c++ and cpp are provided by clang. Also,
ld is provided by lld.

Compile and install lld as ld.lld, since that's what the ecosystem
is expecting.

Prompted and ok by kettenis@

Include bsd.own.mk in a few more places to pick up mk.conf overrides.
ok patrick@ tb@ kettenis@ phessler@

Add build infrastructure for lld.

ok kettenis@

Update clang build infrastructure for LLVM 6.0.0.

Add a manual page for lld from lld svn rev 326463 with options not
present in lld 5.0.1 removed (--build-id=fast, -z muldefs,
-z retpolineplt). This includes a bunch of mdoc changes suggested
by schwarze@ that were recently committed upstream.

ok jmc@ schwarze@ kettenis@ deraadt@

Update clang build infrastructure for LLVM 5.0.0.

don't double install ld, some people have already been lost trying
to get out of these makefiles!

okay kettenis@

zap empty depends/silence empty installs.
okay millert@

Take a more radical approach to disabling colours: pretend we don't
HAVE_TERMINFO in our local config.h. Some of the lower levels of LLVM
don't seem to respect our default setting.

As a result, delete the -ltermlib dependency.

Note that this breaks -fcolor-diagnostics=auto. However, fixing the whole
codebase is out of scope for now ...

Prompted by an instance found in the AsmParser by deraadt@

ok kettenis@ patrick@

Do not clobber the default compiler/linker links unless COMPILER_VERSION is
set to clang.

ok jsg@

Update clang build infrastructure for LLVM 4.0.0

Discussed with kettenis@

Always provide clang as cc, c++ and cpp, and lld as ld.

Per discussion with deraadt@

On clang architectures cc, c++ and cpp are provided by clang. Also,
ld is provided by lld.

Compile and install lld as ld.lld, since that's what the ecosystem
is expecting.

Prompted and ok by kettenis@

Include bsd.own.mk in a few more places to pick up mk.conf overrides.
ok patrick@ tb@ kettenis@ phessler@

Add build infrastructure for lld.

ok kettenis@

Add a manual page for lld from lld svn rev 326463 with options not
present in lld 5.0.1 removed (--build-id=fast, -z muldefs,
-z retpolineplt). This includes a bunch of mdoc changes suggested
by schwarze@ that were recently committed upstream.

ok jmc@ schwarze@ kettenis@ deraadt@

Update clang build infrastructure for LLVM 5.0.0.

don't double install ld, some people have already been lost trying
to get out of these makefiles!

okay kettenis@

zap empty depends/silence empty installs.
okay millert@

Take a more radical approach to disabling colours: pretend we don't
HAVE_TERMINFO in our local config.h. Some of the lower levels of LLVM
don't seem to respect our default setting.

As a result, delete the -ltermlib dependency.

Note that this breaks -fcolor-diagnostics=auto. However, fixing the whole
codebase is out of scope for now ...

Prompted by an instance found in the AsmParser by deraadt@

ok kettenis@ patrick@

Do not clobber the default compiler/linker links unless COMPILER_VERSION is
set to clang.

ok jsg@

Update clang build infrastructure for LLVM 4.0.0

Discussed with kettenis@

Always provide clang as cc, c++ and cpp, and lld as ld.

Per discussion with deraadt@

On clang architectures cc, c++ and cpp are provided by clang. Also,
ld is provided by lld.

Compile and install lld as ld.lld, since that's what the ecosystem
is expecting.

Prompted and ok by kettenis@

Include bsd.own.mk in a few more places to pick up mk.conf overrides.
ok patrick@ tb@ kettenis@ phessler@

Add build infrastructure for lld.

ok kettenis@

Update clang build infrastructure for LLVM 5.0.0.

don't double install ld, some people have already been lost trying
to get out of these makefiles!

okay kettenis@

zap empty depends/silence empty installs.
okay millert@

Take a more radical approach to disabling colours: pretend we don't
HAVE_TERMINFO in our local config.h. Some of the lower levels of LLVM
don't seem to respect our default setting.

As a result, delete the -ltermlib dependency.

Note that this breaks -fcolor-diagnostics=auto. However, fixing the whole
codebase is out of scope for now ...

Prompted by an instance found in the AsmParser by deraadt@

ok kettenis@ patrick@

Do not clobber the default compiler/linker links unless COMPILER_VERSION is
set to clang.

ok jsg@

Update clang build infrastructure for LLVM 4.0.0

Discussed with kettenis@

Always provide clang as cc, c++ and cpp, and lld as ld.

Per discussion with deraadt@

On clang architectures cc, c++ and cpp are provided by clang. Also,
ld is provided by lld.

Compile and install lld as ld.lld, since that's what the ecosystem
is expecting.

Prompted and ok by kettenis@

Include bsd.own.mk in a few more places to pick up mk.conf overrides.
ok patrick@ tb@ kettenis@ phessler@

Add build infrastructure for lld.

ok kettenis@