[Buildroot] [PATCH] linux: provide symlink dtc->linux-dtc is there is no dtc yet
Thomas De Schampheleire
patrickdepinguin at gmail.com
Fri Jan 8 11:30:19 UTC 2016
From: Thomas De Schampheleire <thomas.de.schampheleire at gmail.com>
Commit ab74e09eb4e28dab8bed8d783c5f0464d39a32e7 renamed the dtc host tool
provided by linux to linux-dtc to avoid clashes with the dtc host tool
provided by host-dtc.
However, external scripting may well rely on the existence of a device tree
compiler as $(HOST_DIR)/usr/bin/dtc, regardless of its source. Changing
these external scripts to use linux-dtc means that the scripts need to be
aware of the buildroot release they are working with, which is not very
nice.
Add a symlink dtc->linux-dtc when no $(HOST_DIR)/usr/bin/dtc is present.
When host-dtc is not enabled, the end result will be dtc and
linux-dtc representing the same thing.
When host-dtc is enabled, either it is build before linux and no symlink
is created at any time, or it is build after linux, and the 'install'
command in host-dtc will overwrite the symlink with a proper dtc. In both
cases, the end result will be dtc and linux-dtc representing a different
thing.
Cc: Peter Korsgaard <peter at korsgaard.com>
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire at gmail.com>
---
linux/linux.mk | 3 +++
1 file changed, 3 insertions(+)
diff --git a/linux/linux.mk b/linux/linux.mk
index 045294b..f5c629c 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -339,6 +339,9 @@ define LINUX_INSTALL_HOST_TOOLS
# Installing dtc (device tree compiler) as host tool, if selected
if grep -q "CONFIG_DTC=y" $(@D)/.config; then \
$(INSTALL) -D -m 0755 $(@D)/scripts/dtc/dtc $(HOST_DIR)/usr/bin/linux-dtc ; \
+ if [ ! -e $(HOST_DIR)/usr/bin/dtc ]; then \
+ ln -sf linux-dtc $(HOST_DIR)/usr/bin/dtc ; \
+ fi \
fi
endef
--
1.9.5
More information about the buildroot
mailing list