[OE-core] [PATCH] meta/files/toolchain-shar-relocate.sh: Detect different python binaries and select one that exists.

[Liam R. Howlett]

Although the relocate_sdk.sh supports python3, fc23 does not symlink
/usr/bin/python3 to /usr/bin/python.  Using exec instead of a call to
the correct interpreter causes a failure on fc23 when python2 is not
present.  This uses 'which' to locate python, python2, then python3 and
uses the first one that's found.

Signed-off-by: Liam R. Howlett <Liam.Howlett at WindRiver.com>
---
 meta/files/toolchain-shar-relocate.sh | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/meta/files/toolchain-shar-relocate.sh b/meta/files/toolchain-shar-relocate.sh
index 4ef2927..4f34fb4 100644
--- a/meta/files/toolchain-shar-relocate.sh
+++ b/meta/files/toolchain-shar-relocate.sh
@@ -13,8 +13,23 @@ if [ x$tdir = x ] ; then
    echo "SDK relocate failed, could not create a temporary directory"
    exit 1
 fi
-echo "#!/bin/bash" > $tdir/relocate_sdk.sh
-echo exec ${env_setup_script%/*}/relocate_sdk.py $target_sdk_dir $dl_path $executable_files >> $tdir/relocate_sdk.sh
+cat <<EOF >> $tdir/relocate_sdk.sh
+#!/bin/bash
+for py in python python2 python3
+do
+	PYTHON=\`which \${py} 2>/dev/null\`
+	if [ \$? -eq 0 ]; then
+		break;
+	fi
+done
+
+if [ x\${PYTHON} = "x"  ]; then
+	echo "SDK could not be relocated.  No python found."
+	exit 1
+fi
+\${PYTHON} ${env_setup_script%/*}/relocate_sdk.py $target_sdk_dir $dl_path $executable_files
+EOF
+
 $SUDO_EXEC mv $tdir/relocate_sdk.sh ${env_setup_script%/*}/relocate_sdk.sh
 $SUDO_EXEC chmod 755 ${env_setup_script%/*}/relocate_sdk.sh
 rm -rf $tdir
-- 
2.1.4