dnl CF_PROG_EGREP version: 1 updated: 2006/09/16 11:40:59
dnl -------------
dnl AC_PROG_EGREP was introduced in autoconf 2.53.
dnl This macro adds a check to ensure the script found something.
AC_DEFUN([CF_PROG_EGREP],
[AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
   [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
    then ac_cv_prog_egrep='grep -E'
    else ac_cv_prog_egrep='egrep'
    fi])
 EGREP=$ac_cv_prog_egrep
 AC_SUBST([EGREP])
test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
])dnl
