[Buildroot] [PATCH v5 1/8] package/pkg-generic: host variant inherits target download settings

["Clément Léger via buildroot" <buildroot@buildroot.org>]

From: "Yann E. MORIN" <yann.morin.1998@free.fr>

It seems reasonable to expect that the download of the host and target
variants should usually be exactly the same and thus reuse the target
package values for the host package. This commits add support to
inherit host _DL_SUBDIR, _DOWNLOAD_DEPENDENCIES, _DL_ENV and
_DOwNLOAD_POST_PROCESS variables from target ones. These variables can
still be overriden if necessary for the host package.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
---
 package/pkg-generic.mk | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
index b3a7e1d60e..79fcf603d3 100644
--- a/package/pkg-generic.mk
+++ b/package/pkg-generic.mk
@@ -540,6 +540,30 @@ ifndef $(2)_SUBDIR
  endif
 endif
 
+ifndef $(2)_DL_SUBDIR
+ ifdef $(3)_DL_SUBDIR
+  $(2)_DL_SUBDIR = $$($(3)_DL_SUBDIR)
+ endif
+endif
+
+ifndef $(2)_DOWNLOAD_DEPENDENCIES
+ ifdef $(3)_DOWNLOAD_DEPENDENCIES
+  $(2)_DOWNLOAD_DEPENDENCIES = $$(filter-out $(1),$$($(3)_DOWNLOAD_DEPENDENCIES))
+ endif
+endif
+
+ifndef $(2)_DL_ENV
+ ifdef $(3)_DL_ENV
+  $(2)_DL_ENV = $$($(3)_DL_ENV)
+ endif
+endif
+
+ifndef $(2)_DOWNLOAD_POST_PROCESS
+ ifdef $(3)_DOWNLOAD_POST_PROCESS
+  $(2)_DOWNLOAD_POST_PROCESS = $$($(3)_DOWNLOAD_POST_PROCESS)
+ endif
+endif
+
 ifndef $(2)_STRIP_COMPONENTS
  ifdef $(3)_STRIP_COMPONENTS
   $(2)_STRIP_COMPONENTS = $$($(3)_STRIP_COMPONENTS)
-- 
2.34.1

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