wasi-libc 32

No changes, possibly for internal upstream purposes

The WebAssembly community have reclaimed wasm32-wasi, without suffix,
for a future WASI 1.0 standard. The first version of WASI, 0.1, is
now wasm32-wasip1 in triple form, WASI 0.2 is wasm32-wasip2, etc.
Starting LLVM 22 the non-suffixed form is deprecated, aligning with
Rust and Go:

https://github.com/llvm/llvm-project/issues/165344
https://blog.rust-lang.org/2024/04/09/updates-to-rusts-wasi-targets/

The Mozilla build system's WASI checks always pass -Werror so
configure fails when the non-suffixed target/triple is passed using
LLVM 22:

Using wasi sysroot in /usr/local/share/wasi-sysroot
checking for the wasm C compiler... /usr/local/bin/clang22
checking whether the wasm C compiler can be used... yes
checking the wasm C compiler version... 22.1.0
checking the wasm C compiler works... yes
checking the wasm C compiler can find wasi headers... yes
checking the wasm C linker can find wasi libraries... yes
checking for the wasm C++ compiler... /usr/local/bin/clang++22
checking whether the wasm C++ compiler can be used... yes
checking the wasm C++ compiler version... 22.1.0
checking the wasm C++ compiler works... yes
checking the wasm C++ compiler can find wasi headers... yes
checking the wasm C++ linker can find wasi libraries... yes
checking for clock() in wasi sysroot... no
checking for emulated clock() in wasi sysroot...
DEBUG: Creating `/tmp/conftest0vk5p554.c` with content:
DEBUG: | #include <time.h>
DEBUG: | int
DEBUG: | main(void)
DEBUG: | {
DEBUG: | clock();
DEBUG: |   ;
DEBUG: |   return 0;
DEBUG: | }
DEBUG: Executing: `/usr/local/bin/clang22 --target=wasm32-wasi /tmp/conftest0vk5p554.c -Werror -D_WASI_EMULATED_PROCESS_CLOCKS -lwasi-emulated-process-clocks --sysroot=/usr/local/share/wasi-sysroot`
DEBUG: The command returned non-zero exit status 1.
DEBUG: Its error output was:
DEBUG: | clang: error: argument '--target=wasm32-wasi' is deprecated, use --target=wasm32-wasip1 instead [-Werror,-Wdeprecated]
ERROR: Can't find clock() in wasi sysroot.

Mozilla bug: https://bugzilla.mozilla.org/show_bug.cgi?id=2023597

Bump all WASI ports for the new triple. Adjust consumers accordingly
but do not bump, since non-suffixed and p1 are identical as a
transition measure.

PR: 293925

PR: 293100

- switch to cmake
- stop copying std{arg,def}.h from devel/llvm, not needed
- sync libcxx CMAKE_ARGS
- bump all existing libcxx

Consumer PORTREVISIONs to be bumped

Consumer PORTREVISIONs to be bumped

<wasi/libc-busywait.h> is added and libwasi-emulated-pthread is removed

Reported by: eduardo

Add LLVM 21 flavour

Consumer PORTREVISIONs to be bumped

Enable LLVM 20 flavour, and reorder FLAVORS. Only other changes are
tests so no consumer PORTREVISION bumps.

Only real changes deal with build and test infrastructure so not
bumping any consumer PORTREVISION.

To have separate flavours per supported LLVM version, USES=llvm is
version-locked to each flavour as USES=llvm:${FLAVOR}. This allows
${LLVM_VERSION} to be used throughout the Makefile for consistency.
However, when ${FLAVOR} is not specified, ${LLVM_VERSION} uses
${LLVM_DEFAULT} which may not match the first item in ${FLAVORS},
resulting in missing dependency. Specify a fallback ${FLAVOR} when
not otherwise set so USES=llvm is guaranteed a version lock.

Consumers always explicitly specify ${FLAVOR} so this problem is
not generally exposed.

Reported by: dim
PR: 282265

sdk-24 was only tagged earlier this month and on a commit prior to
the previous one in tree, but portscout registered an "update"
anyway.

No real changes that warrant consumer PORTREVISION bumps.

devel/wasi-libc is now flavourised per supported LLVM version. Each
flavour includes/copies the corresponding clang's stdarg.h and
stddef.h instead of simply using the latest clang release.

Technically upstream dropped support for LLVM < 18, but the commit
doing so admittedly operated under an uncertain assumption. LLVM
17 is still supported in these ports for the benefit of Rust and
gecko@ ports, which specify LLVM 17 minimum, and to facilitate LTO
with that version. LLVM 19 is also supported in this version, with
the corresponding ports to be committed separately.

Bump PORTREVISION of consumers

Prepare for update

Bump PORTREVISION of consumers

wasi-libcxx and wasi-compiler-rt now meta ports (similar to u-boot);
the build process is the same for each LLVM version so child ports
are minimal. Minimum supported LLVM version is 12, thus its
corresponding child ports are resurrected and LLVM 11 child ports
are removed.

Since all supported LLVM versions are made available at once, remove
restriction in bsd.gecko.mk and switch to USES=llvm throughout. LTO
on gecko ports should now work with later LLVM versions so long as
${DEFAULT_VERSIONS} is set properly and matches the LLVM used in
rust (if not using the PORT_LLVM option).

Reviewed by: brooks (LLVM ports interactions)
Tested by: Eric Camachat <eric[at]camachat[dot]org>
Approved by: maintainer timeout (gecko@ portion, 2+ weeks)
PR: 274896
Differential Revision: https://reviews.freebsd.org/D40098

These have to be coordinated with gecko@.

Approved by: mentors (implicit)

Maintainer releases all his ports.

PR:		266871
Reported by:	unrelentingtech <greg@unrelenting.technology>

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

This commit implements such a proposal and moves one of the WWW: entries
of each pkg-descr file into the respective port's Makefile. A heuristic
attempts to identify the most relevant URL in case there is more than
one WWW: entry in some pkg-descr file. URLs that are not moved into the
Makefile are prefixed with "See also:" instead of "WWW:" in the pkg-descr
files in order to preserve them.

There are 1256 ports that had no WWW: entries in pkg-descr files. These
ports will not be touched in this commit.

The portlint port has been adjusted to expect a WWW entry in each port
Makefile, and to flag any remaining "WWW:" lines in pkg-descr files as
deprecated.

Approved by:		portmgr (tcberner)

Differential Revision:	https://reviews.freebsd.org/D32440

WASI is a "syscall" interface for WebAssembly, significantly inspired by CloudABI.
It is supported in clang 8 and up, but to actually build C programs,
it needs clang builtins and the libc/sysroot. And for C++, also libc++ and libcxxabi.

Submitted by:		Greg V <greg%unrelenting.technology>
Differential Revision:	https://reviews.freebsd.org/D22960