[Buildroot] [git commit] scons: force host-python dependency to be python2

[Thomas Petazzoni]

commit: http://git.buildroot.net/buildroot/commit/?id=68d8f4e69bdc5b4e09232f3c970963a1f660ad54
branch: http://git.buildroot.net/buildroot/commit/?id=refs/heads/master

Scons build-system needs python2 as interpreter (it does not support
python3 yet).

So, we need to force the host dependency to get the python2 interperter
built and available in the host tree to be able to build host-scons
itself and to build scons-based packages, whatever is the python
interpreter for the target.

This patch also makes sure scons will in be called using the right
python interpreter when invoked via $(SCONS).

Fixes:
  http://autobuild.buildroot.net/results/11e6c8c8d79d56ed43daf52e6d6dc80847709926/

[Thomas: take into account the rename of the new variable to
<pkg>_NEEDS_HOST_PYTHON.]

Signed-off-by: Samuel Martin <s.martin49 at gmail.com>
Cc: Gustavo Zacarias <gustavo at zacarias.com.ar>
Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
 package/scons/scons.mk |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/package/scons/scons.mk b/package/scons/scons.mk
index e3fad1b..42a703c 100644
--- a/package/scons/scons.mk
+++ b/package/scons/scons.mk
@@ -10,10 +10,12 @@ SCONS_LICENSE = MIT
 SCONS_LICENSE_FILES = LICENSE.txt
 SCONS_SETUP_TYPE = distutils
 
+HOST_SCONS_NEEDS_HOST_PYTHON = python2
+
 HOST_SCONS_INSTALL_OPT = \
 	--install-lib=$(HOST_DIR)/usr/lib/scons-$(SCONS_VERSION)
 
 $(eval $(host-python-package))
 
 # variables used by other packages
-SCONS = $(HOST_DIR)/usr/bin/scons
+SCONS = $(HOST_DIR)/usr/bin/python2 $(HOST_DIR)/usr/bin/scons