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Sync up minor differences between configure scripts (uuid, libtool checks), add in configurable package version number suffixes.

#
# Check for specified utility (env var) - if unset, fail.
# 
AC_DEFUN([AC_PACKAGE_NEED_UTILITY],
  [ if test -z "$2"; then
        echo
        echo FATAL ERROR: $3 does not seem to be installed.
        echo $1 cannot be built without a working $4 installation.
        exit 1
    fi
  ])

#
# Generic macro, sets up all of the global build variables.
# The following environment variables may be set to override defaults:
#  CC MAKE LIBTOOL TAR ZIP MAKEDEPEND AWK SED ECHO SORT
#  MSGFMT MSGMERGE RPM
#
AC_DEFUN([AC_PACKAGE_UTILITIES],
  [ if test -z "$CC"; then
        AC_PROG_CC
    fi
    cc="$CC"
    AC_SUBST(cc)
    AC_PACKAGE_NEED_UTILITY($1, "$cc", cc, [C compiler])

    if test -z "$MAKE"; then
        AC_PATH_PROG(MAKE, make, /usr/bin/make)
    fi
    make=$MAKE
    AC_SUBST(make)
    AC_PACKAGE_NEED_UTILITY($1, "$make", make, [GNU make])

    if test -z "$LIBTOOL"; then
	AC_PATH_PROG(LIBTOOL, libtool,,/usr/bin:/usr/local/bin)
    fi
    libtool=$LIBTOOL
    AC_SUBST(libtool)
    AC_PACKAGE_NEED_UTILITY($1, "$libtool", libtool, [GNU libtool])

    if test -z "$TAR"; then
        AC_PATH_PROG(TAR, tar)
    fi
    tar=$TAR
    AC_SUBST(tar)
    if test -z "$ZIP"; then
        AC_PATH_PROG(ZIP, gzip, /bin/gzip)
    fi
    zip=$ZIP
    AC_SUBST(zip)
    if test -z "$MAKEDEPEND"; then
        AC_PATH_PROG(MAKEDEPEND, makedepend, /bin/true)
    fi
    makedepend=$MAKEDEPEND
    AC_SUBST(makedepend)
    if test -z "$AWK"; then
        AC_PATH_PROG(AWK, awk, /bin/awk)
    fi
    awk=$AWK
    AC_SUBST(awk)
    if test -z "$SED"; then
        AC_PATH_PROG(SED, sed, /bin/sed)
    fi
    sed=$SED
    AC_SUBST(sed)
    if test -z "$ECHO"; then
        AC_PATH_PROG(ECHO, echo, /bin/echo)
    fi
    echo=$ECHO
    AC_SUBST(echo)
    if test -z "$SORT"; then
        AC_PATH_PROG(SORT, sort, /bin/sort)
    fi
    sort=$SORT
    AC_SUBST(sort)

    dnl check if symbolic links are supported
    AC_PROG_LN_S

    if test "$enable_gettext" = yes; then
        if test -z "$MSGFMT"; then
                AC_CHECK_PROG(MSGFMT, msgfmt, /usr/bin/msgfmt)
        fi
        msgfmt=$MSGFMT
        AC_SUBST(msgfmt)
        AC_PACKAGE_NEED_UTILITY($1, "$msgfmt", msgfmt, gettext)
        if test -z "$MSGMERGE"; then
                AC_CHECK_PROG(MSGMERGE, msgmerge, /usr/bin/msgmerge)
        fi
        msgmerge=$MSGMERGE
        AC_SUBST(msgmerge)
        AC_PACKAGE_NEED_UTILITY($1, "$msgmerge", msgmerge, gettext)
    fi

    if test -z "$RPM"; then
        AC_PATH_PROG(RPM, rpm, /bin/rpm)
    fi
    rpm=$RPM
    AC_SUBST(rpm)
    dnl .. and what version is rpm
    rpm_version=0
    test -x $RPM && rpm_version=`$RPM --version \
                        | awk '{print $NF}' | awk -F. '{V=1; print $V}'`
    AC_SUBST(rpm_version)
    dnl At some point in rpm 4.0, rpm can no longer build rpms, and
    dnl rpmbuild is needed (rpmbuild may go way back; not sure)
    dnl So, if rpm version >= 4.0, look for rpmbuild.  Otherwise build w/ rpm
    if test $rpm_version -ge 4; then
        AC_PATH_PROG(RPMBUILD, rpmbuild)
        rpmbuild=$RPMBUILD
    else
        rpmbuild=$RPM
    fi
    AC_SUBST(rpmbuild)
  ])