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rust: fix host build on aarch64 darwin

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rust/host failed to compile on macOS running on Apple Silicon M1 Pro
because the host target triple is autogenerated to be
'arm64-unknown-linux-'. Rust doesn't have such a target triple, thus the
build failes because there are no pre-built artifacts for bootstrapping.

Fix this by setting RUSTC_HOST_ARCH to 'aarch64-apple-darwin' in case
our host is HOST_ARCH=arm64 and HOST_OS=darwin.

Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
This commit is contained in:
Jonas Jelonek 2023-08-16 09:25:50 +02:00 committed by Nick Hainke
parent 0e71c9f80f
commit 105fa3920e
1 changed files with 6 additions and 0 deletions
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6
lang/rust/rust-values.mk
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@ -22,6 +22,12 @@ ifdef CONFIG_PKG_CC_STACKPROTECTOR_STRONG
endif
endif
ifeq ($(HOST_OS),Darwin)
ifeq ($(HOST_ARCH),arm64)
RUSTC_TARGET_ARCH:=aarch64-apple-darwin
endif
endif
# mips64 openwrt has a specific targed in rustc
ifeq ($(ARCH),mips64)
RUSTC_TARGET_ARCH:=$(REAL_GNU_TARGET_NAME)