[Buildroot] [PATCH v2 09/13] package/pkg-kconfig: handle KCONFIG_DEPENDENCIES with per-package directories

[Andreas Naumann]

From: Thomas Petazzoni <thomas.petazzoni at bootlin.com>

The pkg-kconfig infrastructure hijacks the regular chain of build
steps to insert its own step to prepare the configuration of kconfig
packages. This additional step may have dependencies of its own, such
as host-flex, host-bison or toolchain.

In the context of per-package directory support, those dependencies
must be copied to the per-package directory of the current package
prior to doing the config preparation. This commit implements this
logic by adding a call to prepare-per-package-directory at the right
spot.

Reported-by: Andreas Naumann <anaumann at ultratronik.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Signed-off-by: Andreas Naumann <anaumann at ultratronik.de>
---
 package/pkg-kconfig.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/pkg-kconfig.mk b/package/pkg-kconfig.mk
index ce11e14824..5a29490473 100644
--- a/package/pkg-kconfig.mk
+++ b/package/pkg-kconfig.mk
@@ -117,6 +117,7 @@ endef
 # Since the file could be a defconfig file it needs to be expanded to a
 # full .config first.
 $$($(2)_DIR)/$$($(2)_KCONFIG_DOTCONFIG): $$($(2)_KCONFIG_FILE) $$($(2)_KCONFIG_FRAGMENT_FILES)
+	$$(call prepare-per-package-directory,$$($(2)_KCONFIG_DEPENDENCIES))
 	$$(Q)$$(if $$($(2)_KCONFIG_DEFCONFIG), \
 		$$($(2)_KCONFIG_MAKE) $$($(2)_KCONFIG_DEFCONFIG), \
 		$$(INSTALL) -m 0644 -D $$($(2)_KCONFIG_FILE) $$(@))
-- 
2.21.0