AC_DEFUN([AI_SHLIBPATH],
    [
        AI_SHLIBPATH_OS="$1"
        AI_SHLIBPATH_CPU="$2"

        case "x${AI_SHLIBPATH_OS}" in
        
            xaix3*)
                AI_SHLIBPATH_VAR="LIBPATH"
                ;;

            xaix4*|xaix5*)
                if test "x${AI_SHLIBPATH_CPU}" = "xia64"
                then
                    AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                else
                    AI_SHLIBPATH_VAR="LIBPATH"
                fi
                ;;

            xamigaos*)
                ;;

            xbeos*)
                AI_SHLIBPATH_VAR="LIBRARY_PATH"
                ;;

            xbsdi[[45]]*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xcygwin*|xmingw*|xpw32*)
                AI_SHLIBPATH_VAR="PATH"
                ;;

            xdarwin*|xrhapsody*)
                AI_SHLIBPATH_VAR="DYLD_LIBRARY_PATH"
                ;;

            xdgux*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xfreebsd1*)
                ;;

            xkfreebsd*-gnu)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xfreebsd*|xdragonfly*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xgnu*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xhpux9*|xhpux10*|xhpux11*)
                case "x${AI_SHLIBPATH_CPU}" in
                    xia64*)
                        AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                        ;;
                    xhppa*64*)
                        AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                        ;;
                    *)
                        AI_SHLIBPATH_VAR="SHLIB_PATH"
                        ;;
                esac
                ;;

            xirix5*|xirix6*|xnonstopux*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xlinux*oldld*|xlinux*aout*|xlinux*coff*)
                ;;

            xlinux*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xknetbsd*-gnu)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xnetbsd*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xnewsos6)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xnto-qnx*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xopenbsd*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xos2*)
                AI_SHLIBPATH_VAR="LIBPATH"
                ;;

            xosf3*|xosf4*|xosf5*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xsco3.2v5*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xsolaris*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xsunos4*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xsysv4|xsysv4.2uw2*|xsysv4.3*|xsysv5*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xsysv4*MP*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;

            xuts4*)
                AI_SHLIBPATH_VAR="LD_LIBRARY_PATH"
                ;;
            
            *)
                AI_SHLIBPATH_VAR=""
                ;;
                
        esac
    ])

AC_DEFUN([AI_BUILD_SHLIBPATH],
    [
        AC_REQUIRE([AC_CANONICAL_BUILD])
        AI_SHLIBPATH(["${build_os}", "${build_cpu}"])
        AI_BUILD_SHLIBPATH_VAR="${AI_SHLIBPATH_VAR}"
    ])