[Buildroot] [PATCH 4/6] scons: force host-python dependency to be python2

[Samuel Martin]

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/

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>
---
 package/scons/scons.mk | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/package/scons/scons.mk b/package/scons/scons.mk
index e3fad1b..88396d4 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_FORCE_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
-- 
1.9.0