[Buildroot] [PATCH v2 2/3] package: fix generic extract target for top-level parallel make

[Fabio Porcedda]

To be able to use top-level parallel make we must don't depend in a rule
on the order of evaluation of the prerequisites, so instead of reling on
the left to right ordering of evaluation of the prerequisites add
an explicit rule to describe the dependencies.

Add a rule to specify that the $(2)_TARGET_EXTRACT target depends
on $(2)_TARGET_SOURCE target.

Signed-off-by: Fabio Porcedda <fabio.porcedda at gmail.com>
---
 package/pkg-generic.mk | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
index 668f011..f29ea99 100644
--- a/package/pkg-generic.mk
+++ b/package/pkg-generic.mk
@@ -391,8 +391,8 @@ $(1)-configure:		$(1)-patch $(1)-depends \
 
 $(1)-patch:		$(1)-extract $$($(2)_TARGET_PATCH)
 
-$(1)-extract:		$(1)-source \
-			$$($(2)_TARGET_EXTRACT)
+$$($(2)_TARGET_EXTRACT):	$$($(2)_TARGET_SOURCE)
+$(1)-extract:			$$($(2)_TARGET_EXTRACT)
 
 $(1)-depends:		$$($(2)_DEPENDENCIES)
 
-- 
1.8.1.4