package=native_clang
# To update the Clang compiler:
# - Change the versions below, and the MSYS2 version in libcxx.mk
# - Run the script ./contrib/devtools/update-clang-hashes.sh
# - Manually fix the versions for packages that don't exist (the LLVM project
#   doesn't uniformly cut binaries across releases).
# The Clang compiler should use the same LLVM version as the Rust compiler.
$(package)_default_major_version=18
$(package)_default_version=18.1.4
# 2024-05-03: No Intel macOS packages are available for Clang 16, 17, or 18.
$(package)_major_version_darwin=15
$(package)_version_darwin=15.0.4
# 2023-02-16: No FreeBSD packages are available for Clang 15.
# 2023-04-07: Still the case.
# 2024-05-03: No FreeBSD packages are available for Clang 17 or 18.
#             Clang 16 has FreeBSD 13 packages, but none for FreeBSD 12.
$(package)_major_version_freebsd=14
$(package)_version_freebsd=14.0.6

# Tolerate split LLVM versions. If an LLVM build is not available for a Tier 3
# platform, we permit an older LLVM version to be used. This means the version
# of LLVM used in Clang and Rust will differ on these platforms, preventing LTO
# from working.
$(package)_version=$(if $($(package)_version_$(host_arch)_$(host_os)),$($(package)_version_$(host_arch)_$(host_os)),$(if $($(package)_version_$(host_os)),$($(package)_version_$(host_os)),$($(package)_default_version)))
$(package)_major_version=$(if $($(package)_major_version_$(host_arch)_$(host_os)),$($(package)_major_version_$(host_arch)_$(host_os)),$(if $($(package)_major_version_$(host_os)),$($(package)_major_version_$(host_os)),$($(package)_default_major_version)))

$(package)_download_path_linux=https://github.com/llvm/llvm-project/releases/download/llvmorg-$($(package)_version)
$(package)_download_file_linux=clang+llvm-$($(package)_version)-x86_64-linux-gnu-ubuntu-18.04.tar.xz
$(package)_file_name_linux=clang-llvm-$($(package)_version)-x86_64-linux-gnu-ubuntu-18.04.tar.xz
$(package)_sha256_hash_linux=1607375b4aa2aec490b6db51846a04b265675a87e925bcf5825966401ff9b0b1
$(package)_download_path_darwin=https://github.com/llvm/llvm-project/releases/download/llvmorg-$($(package)_version)
$(package)_download_file_darwin=clang+llvm-$($(package)_version)-x86_64-apple-darwin.tar.xz
$(package)_file_name_darwin=clang-llvm-$($(package)_version)-x86_64-apple-darwin.tar.xz
$(package)_sha256_hash_darwin=4c98d891c07c8f6661b233bf6652981f28432cfdbd6f07181114195c3536544b
$(package)_download_path_freebsd=https://github.com/llvm/llvm-project/releases/download/llvmorg-$($(package)_version)
$(package)_download_file_freebsd=clang+llvm-$($(package)_version)-amd64-unknown-freebsd12.tar.xz
$(package)_file_name_freebsd=clang-llvm-$($(package)_version)-amd64-unknown-freebsd12.tar.xz
$(package)_sha256_hash_freebsd=b0a7b86dacb12afb8dd2ca99ea1b894d9cce84aab7711cb1964b3005dfb09af3
$(package)_download_path_aarch64_linux=https://github.com/llvm/llvm-project/releases/download/llvmorg-$($(package)_version)
$(package)_download_file_aarch64_linux=clang+llvm-$($(package)_version)-aarch64-linux-gnu.tar.xz
$(package)_file_name_aarch64_linux=clang-llvm-$($(package)_version)-aarch64-linux-gnu.tar.xz
$(package)_sha256_hash_aarch64_linux=8c2f4d1606d24dc197a590acce39453abe7a302b9b92e762108f9b5a9701b1df

ifeq ($(build_os),linux)
$(package)_dependencies=native_libtinfo5
endif

# Ensure we have clang native to the builder, not the target host
ifneq ($(canonical_host),$(build))
$(package)_exact_download_path=$($(package)_download_path_$(build_os))
$(package)_exact_download_file=$($(package)_download_file_$(build_os))
$(package)_exact_file_name=$($(package)_file_name_$(build_os))
$(package)_exact_sha256_hash=$($(package)_sha256_hash_$(build_os))
endif

define $(package)_stage_cmds
  mkdir -p $($(package)_staging_prefix_dir)/bin && \
  rm -r include/flang && \
  rm -r include/lldb && \
  rm lib/libflang* && \
  rm lib/libFortran* && \
  rm lib/liblldb* && \
  cp bin/clang-$($(package)_major_version) $($(package)_staging_prefix_dir)/bin && \
  cp bin/lld $($(package)_staging_prefix_dir)/bin && \
  cp bin/llvm-ar $($(package)_staging_prefix_dir)/bin && \
  cp bin/llvm-config $($(package)_staging_prefix_dir)/bin && \
  cp bin/llvm-nm $($(package)_staging_prefix_dir)/bin && \
  cp bin/llvm-objcopy $($(package)_staging_prefix_dir)/bin && \
  cp -P bin/clang $($(package)_staging_prefix_dir)/bin && \
  cp -P bin/clang++ $($(package)_staging_prefix_dir)/bin && \
  cp -P bin/ld.lld $($(package)_staging_prefix_dir)/bin && \
  cp -P bin/ld64.lld $($(package)_staging_prefix_dir)/bin && \
  cp -P bin/lld-link $($(package)_staging_prefix_dir)/bin && \
  cp -P bin/llvm-ranlib $($(package)_staging_prefix_dir)/bin && \
  cp -P bin/llvm-strip $($(package)_staging_prefix_dir)/bin && \
  (test ! -f include/x86_64-unknown-linux-gnu/c++/v1/__config_site || \
   cp include/x86_64-unknown-linux-gnu/c++/v1/__config_site include/c++/v1/__config_site) && \
  mv include/ $($(package)_staging_prefix_dir) && \
  mv lib/ $($(package)_staging_prefix_dir) && \
  mv libexec/ $($(package)_staging_prefix_dir)
endef