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# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright (C) 2023 Luca Barbato and Donald Hoskins
# Variables (all optional) to be set in package Makefiles:
#
# RUST_PKG_FEATURES - list of options, default empty
#
# Space or comma separated list of features to activate
#
# e.g. RUST_PKG_FEATURES:=enable-foo,with-bar
#
#
# RUST_PKG_LOCKED - Assert that `Cargo.lock` will remain unchanged
# (Enabled by default)
#
# Disable it if you want to have up-to-date dependencies
#
# e.g. RUST_PKG_LOCKED:=0
ifeq ($(origin RUST_INCLUDE_DIR),undefined)
RUST_INCLUDE_DIR:=$(dir $(lastword $(MAKEFILE_LIST)))
endif
include $(RUST_INCLUDE_DIR)/rust-values.mk
RUST_PKG_LOCKED ?= 1
PKG_BUILD_DEPENDS += $(RUST_PKG_BUILD_DEPENDS)
PKG_CONFIG_DEPENDS += $(RUST_PKG_CONFIG_DEPENDS)
ifeq ($(strip $(PKG_BUILD_PARALLEL)),)
PKG_BUILD_PARALLEL:=1
endif
CARGO_PKG_VARS= \
$(CARGO_PKG_CONFIG_VARS) \
CC=$(TARGET_CC_NOCACHE) \
HOST_CC=$(HOSTCC_NOCACHE) \
CXX=$(TARGET_CXX_NOCACHE) \
HOST_CXX=$(HOSTCXX_NOCACHE) \
MAKEFLAGS="$(PKG_JOBS)"
CARGO_PKG_ARGS = $(if $(PKG_SKIP_DOWNLOAD),,--offline)
ifeq ($(strip $(RUST_PKG_LOCKED)),1)
CARGO_PKG_ARGS += --locked
endif
# $(1) path within PKG_BUILD_DIR (optional, defaults to MAKE_PATH)
# $(2) additional arguments to cargo (optional)
#
# Cargo builds use --offline; packages must supply a vendor tarball with
# .cargo/config.toml pointing to vendor/. Generate vendor tarballs with
# scripts/gen-cargo-vendor-tarball.sh. A source tree override (git-src,
# USE_SOURCE_DIR) has no vendor tarball, so Cargo fetches the crates then.
define Build/Compile/Cargo/Default
+cd "$(PKG_BUILD_DIR)/$(if $(strip $(1)),$(strip $(1)),$(strip $(MAKE_PATH)))" && \
$(CARGO_PKG_VARS) \
$(CARGO) $(3) -v \
--target $(RUSTC_TARGET_ARCH) \
--profile $(CARGO_PKG_PROFILE) \
$(if $(strip $(RUST_PKG_FEATURES)),--features "$(strip $(RUST_PKG_FEATURES))") \
$(if $(filter --jobserver%,$(PKG_JOBS)),,-j1) \
$(CARGO_PKG_ARGS) \
$(2)
endef
define Build/Compile/Cargo
$(call Build/Compile/Cargo/Default,$(1),$(2),install --root $(PKG_INSTALL_DIR) --path .)
endef
define Build/Compile/Cargo/Build
$(call Build/Compile/Cargo/Default,$(1),$(2),build --manifest-path Cargo.toml)
endef
define RustBinPackage
ifndef Package/$(1)/install
define Package/$(1)/install
$$(INSTALL_DIR) $$(1)/usr/bin/
$$(INSTALL_BIN) $$(PKG_INSTALL_DIR)/bin/* $$(1)/usr/bin/
endef
endif
endef
Build/Compile=$(call Build/Compile/Cargo)
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