@@ -28,10 +28,10 @@ export PKG_CONFIG_ALLOW_CROSS = "1"
# Don't instruct cargo to use crates downloaded by bitbake. Some rust packages,
# for example the rust compiler itself, come with their own vendored sources.
# Specifying two [source.crates-io] will not work.
-CARGO_DISABLE_BITBAKE_VENDORING ?= "0"
+CARGO_DISABLE_BITBAKE_VENDORING ??= "0"
# Used by libstd-rs to point to the vendor dir included in rustc src
-CARGO_VENDORING_DIRECTORY ?= "${CARGO_HOME}/bitbake"
+CARGO_VENDORING_DIRECTORY ??= "${CARGO_HOME}/bitbake"
# The directory of the Cargo.toml relative to the root directory, per default
# assume there's a Cargo.toml directly in the root directory
@@ -40,7 +40,7 @@ CARGO_SRC_DIR ??= ""
# The actual path to the Cargo.toml
CARGO_MANIFEST_PATH ??= "${S}/${CARGO_SRC_DIR}/Cargo.toml"
-CARGO_RUST_TARGET_CCLD ?= "${RUST_TARGET_CCLD}"
+CARGO_RUST_TARGET_CCLD ??= "${RUST_TARGET_CCLD}"
cargo_common_do_configure () {
mkdir -p ${CARGO_HOME}/bitbake
@@ -16,8 +16,8 @@ FILES:${PN}-dbg += "${rustlibdir}/.debug"
RUSTLIB = "-L ${STAGING_DIR_HOST}${rustlibdir}"
RUST_DEBUG_REMAP = "--remap-path-prefix=${WORKDIR}=${TARGET_DBGSRC_DIR}"
RUSTFLAGS += "${RUSTLIB} ${RUST_DEBUG_REMAP}"
-RUSTLIB_DEP ?= "libstd-rs"
-RUST_PANIC_STRATEGY ?= "unwind"
+RUSTLIB_DEP ??= "libstd-rs"
+RUST_PANIC_STRATEGY ??= "unwind"
def target_is_armv7(d):
'''Determine if target is armv7'''
All of these variables are single-valued, so we can use weak-defaults for them and only see the final assignment after parsing. Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com> --- Changes in v2: - New in v2 meta/classes-recipe/cargo_common.bbclass | 6 +++--- meta/classes-recipe/rust-common.bbclass | 4 ++-- 2 files changed, 5 insertions(+), 5 deletions(-)