#!/bin/sh

: ${R_HOME=`R RHOME`}
if test -z "${R_HOME}"; then
    echo Could not determine R_HOME.
    exit 1
fi

CXX17=`${R_HOME}/bin/R CMD config CXX17`

if test "x${CXX17}" = "x"; then
   sed -e 's/@CXXSTD@/CXX11/' -e 's/@NOCXX17@/-DNO_CXX17/' src/Makevars.in > src/Makevars
else
   sed -e 's/@CXXSTD@/CXX17/' -e 's/@NOCXX17@//' src/Makevars.in > src/Makevars
fi

exit 0
