configure

#! /bin/sh
## For the time being, this is a simple shell script ...

## Test whether a complete DONLP2 library environment is available,
## e.g. ftp://ftp.gnu.org/gnu/donlp2/

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

R="${R_HOME}/bin/R"

DONLP2_LIBS="-ldonlp2"

## Test whether we can compile and link a minimal program.
rm -f conftest.*

cat > conftest.cc <<EOF
#include <donlp2.h>
int main ()
{
   glp_prob *lp;
   lp = glp_create_prob();
   glp_delete_prob(lp);
   return 0;
}
EOF

${R} CMD SHLIB conftest.cc ${DONLP2_LIBS} >/dev/null 2>&1
status=${?}

rm -f conftest.*

if test ${status} -eq 0; then
    DONLP2_INCLUDE_PATH=
    DONLP2_LIB_PATH=
    DONLP2_TS=
else    
    DONLP2_INCLUDE_PATH="-IDONLP2"
    DONLP2_LIB_PATH="-LDONLP2"
    DONLP2_TS="DONLP2.ts"
fi

sed -e "s|@DONLP2_INCLUDE_PATH@|${DONLP2_INCLUDE_PATH}|" \
    -e "s|@DONLP2_LIB_PATH@|${DONLP2_LIB_PATH}|" \
    -e "s|@DONLP2_TS@|${DONLP2_TS}|" \
    src/Makevars.in > src/Makevars