XSLTPROC=@XSLTPROC@
# PERL will be an empty string if no perl interpreter was found.
-PERL=@PERL@
+PERL=$(command -v "@PERL@")
# Windows process management leave empty
PSSUSPEND=
-PYTHON=@PYTHON@
+PYTHON=$(command -v "@PYTHON@")
#
# Determine if we support various optional features.
NOSPLIT="$(< ns2/keydata sed -e 's/+/[+]/g' -e 's/ //g')"
HAS_PYYAML=0
-if [ -n "$PYTHON" ] ; then
+if [ -x "$PYTHON" ] ; then
$PYTHON -c "import yaml" 2> /dev/null && HAS_PYYAML=1
fi
status=`expr $status + $ret`
HAS_PYYAML=0
-if [ -n "$PYTHON" ] ; then
+if [ -x "$PYTHON" ] ; then
$PYTHON -c "import yaml" 2> /dev/null && HAS_PYYAML=1
fi