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makefiles/rust: Document CARGO_OPTIONS make variable

This commit is contained in:
chrysn 2024-01-31 12:19:08 +01:00
parent 6724884b93
commit 1cc2930a7b

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@ -29,3 +29,10 @@ CARGO_TARGET_DIR = $(BINDIR)/target
# are stored in the `release` directory. User-defined profiles are stored in a
# directory with the same name as the profile".
CARGO_LIB = $(CARGO_TARGET_DIR)/$(RUST_TARGET)/$(patsubst test,debug,$(patsubst dev,debug,$(patsubst bench,release,${CARGO_PROFILE})))/lib$(APPLICATION_RUST_MODULE).a
# Options passed into all Cargo commands, in particular to the build command.
#
# Most of these are populated by RIOT modules that are backed by Rust. Popular
# options added by the user are `-Zbuild-std=core` (only available on nightly)
# to apply LTO and profile configuration to the core library.
CARGO_OPTIONS ?=