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linux: host-{flex, bison} only needed for DTS

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host-{flex,bison} are only needed to generate the dtc parser, so we
don't need them if the kernel does not have support for device tree.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Yann E. MORIN
2018-08-17 18:06:51 +02:00
committed by Thomas Petazzoni
parent b01100cc90
commit 43ac3c8432
1 changed files with 5 additions and 5 deletions
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10
linux/linux.mk
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@@ -64,11 +64,6 @@ LINUX_PATCH = $(filter ftp://% http://% https://%,$(LINUX_PATCHES))
LINUX_INSTALL_IMAGES = YES
LINUX_DEPENDENCIES = host-kmod
# Starting with 4.17, the generated dtc parser code is no longer
# shipped with the kernel sources, so we need flex and bison. For
# reproducibility, we use our owns rather than the host ones.
LINUX_DEPENDENCIES += host-bison host-flex
# Starting with 4.16, the generated kconfig paser code is no longer
# shipped with the kernel sources, so we need flex and bison, but
# only if the host does not have them.
@@ -352,6 +347,11 @@ define LINUX_KCONFIG_FIXUP_CMDS
endef
ifeq ($(BR2_LINUX_KERNEL_DTS_SUPPORT),y)
# Starting with 4.17, the generated dtc parser code is no longer
# shipped with the kernel sources, so we need flex and bison. For
# reproducibility, we use our owns rather than the host ones.
LINUX_DEPENDENCIES += host-bison host-flex
ifeq ($(BR2_LINUX_KERNEL_DTB_IS_SELF_BUILT),)
define LINUX_BUILD_DTB
$(LINUX_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_DTBS)