[Buildroot] [PATCH 4/7 v4] linux: kconfig may need host-{flex, bison} to build the configurators
Yann E. MORIN
yann.morin.1998 at free.fr
Fri Aug 17 16:06:50 UTC 2018
Rely on the system provided ones if avalable, and only resort to use our
owns if the sytem does not provide them.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
Cc: Arnout Vandecappelle <arnout at mind.be>
Cc: Jan Kundrát <jan.kundrat at cesnet.cz>
---
Notes: I did not carry Jan's Tested-by tag, because the patch is now
using the conditional dependencies, so it would have been a bit
presumptuous of me to carry that tag.
---
Changes v2 -> v3:
- use the newly-introduced conditional dependencies (Thomas, Arnout)
---
linux/linux.mk | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/linux/linux.mk b/linux/linux.mk
index d307970065..deb5a4ac57 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -64,12 +64,18 @@ LINUX_PATCH = $(filter ftp://% http://% https://%,$(LINUX_PATCHES))
LINUX_INSTALL_IMAGES = YES
LINUX_DEPENDENCIES = host-kmod
-# Starting with 4.16, the generated kconfig paser code is no longer
-# shipped with the kernel sources, so we need flex and bison.
# Starting with 4.17, the generated dtc parser code is no longer
-# shipped with the kernel sources, so we need flex and bison.
+# 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.
+LINUX_KCONFIG_DEPENDENCIES = \
+ $(BR2_BISON_HOST_DEPENDENCY) \
+ $(BR2_FLEX_HOST_DEPENDENCY)
+
# host tools needed for kernel compression
ifeq ($(BR2_LINUX_KERNEL_LZ4),y)
LINUX_DEPENDENCIES += host-lz4
--
2.14.1
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