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boot/barebox: use $$ instead of $ where needed

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Commit c90bd74ebb ("boot/barebox: pass
required environment variables for reproducible build") caused the
build to generate a spurious error message due to the $(shell
... date -d @$(SOURCE_DATE_EPOCH)) command being executed even when
BR2_REPRODUCIBLE was disabled.

This is due to the fact that variable references must be done using $$
within macros. This commit fixes that for the two variables that we
are referencing in the code added in commit
c90bd74ebb.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Thomas Petazzoni 2023-02-06 11:21:22 +01:00
parent 014180011d
commit 75c313816e
1 changed files with 2 additions and 2 deletions
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4
boot/barebox/barebox.mk
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@ -74,11 +74,11 @@ endif
$(1)_MAKE_FLAGS = ARCH=$$($(1)_ARCH) CROSS_COMPILE="$$(TARGET_CROSS)"
$(1)_MAKE_ENV = $$(TARGET_MAKE_ENV)
ifeq ($(BR2_REPRODUCIBLE),y)
ifeq ($$(BR2_REPRODUCIBLE),y)
$(1)_MAKE_ENV += \
KBUILD_BUILD_USER=buildroot \
KBUILD_BUILD_HOST=buildroot \
KBUILD_BUILD_TIMESTAMP="$(shell LC_ALL=C date -d @$(SOURCE_DATE_EPOCH))"
KBUILD_BUILD_TIMESTAMP="$$(shell LC_ALL=C date -d @$(SOURCE_DATE_EPOCH))"
endif
ifeq ($$(BR2_TARGET_$(1)_USE_DEFCONFIG),y)