2 dnl @synopsis RT_EXPAND_VAR(baz, $fraz)
4 dnl Iteratively expands the second parameter, until successive iterations
5 dnl yield no change. The result is then assigned to the first parameter.
7 dnl This code is heavily borrowed from the Apache 2 codebase.
10 AC_DEFUN([RT_EXPAND_VAR],[
13 while test "x${ap_cur}" != "x${ap_last}"; do
15 ap_cur=`eval "echo ${ap_cur}"`