#!/bin/sh # Verify the environment is safe for building this package. findexe() { oldifs="$IFS" IFS=: for d in $PATH; do if [ -x $d/$1 ]; then IFS="$oldifs" return 0 fi done IFS="$oldifs" return 1 } # We should also check various other things: # # * javac is from SUN SDK or IBM java # * javac has same wordsize as Prolog (both 32 or 64 bits) # * linking libpl.a in a shared object is possible. # # How to do this in a portable way? Can we use plld? if findexe javac; then exit 0 else exit 1 fi