Dæmon Saigo Native Client SDK 21.0-20260805

Dæmon Saigo Native Client Software Development Kit 21.0-20260805

Notable changes for Saigo precompiled package users:

• NaCl GDB is provided
• Rename saigocc tarball to saigosdk

Notable changes for Native Client application developers:

• The basename of tools is now prefixed with nacl-: nacl-clang, nacl-ld, nacl-gdb…
• A small subset of target-prefixed tools are still provided:
  clang, clang++, ar, ld and strip have tools named like x86_64-nacl-clang.

Notable changes for Saigo toolchain contributors and builders:

• Make INSTALL_RPATH reusable
• AddGitProject creates the target
• Rework the compiler flags system using lists.
• Create reusable helpers for configure-based external projects.
• Create reusable helpers for cmake-based external projects.
• Also run the configure host compiler with Ccache.
• Rework the build options and add a configure-only tool
• make PATCHES_DIR reusable
• Better cmake idiomatic writing
• Add binutils patch to make it build on macos-arm64
• set LLVM_TARGETS_TO_BUILD according to SAIGO_ARCH_NAMES

This doesn't ship the NaCl runtime, and the packages for the compilers don't require any compatibility layer: those packages provide native compilers for platforms known to be able to run the runtime.

The NaCl runtime has to be found there:

• github.com/DaemonEngine/native_client

Native Client targets supported (with libc and libc++):

• nacl-amd64
• nacl-i686
• nacl-armhf

Minimum systems and architectures for provided precompiled tarballs:

• linux-amd64: Debian 11 Bullseye
• linux-i686: Debian 11 Bullseye
• linux-arm64: Debian 11 Bullseye
• linux-armhf: Debian 11 Bullseye
• linux-ppc64el: Debian 11 Bullseye
• linux-riscv64: Debian 11 Bullseye
• linux-loong64: Debian 13 Trixie
• freebsd-amd64: FreeBSD 13.4
• freebsd-i686: FreeBSD 13.4
• windows-amd64: whatever MinGW targets (built on Debian 13 Trixie)
• windows-i686: whatever MinGW targets (built on Debian 13 Trixie)
• macos-amd64: macOS 10.2 Jaguar
• macos-arm64: macOS 11.7 Big Sur