+ last_ac_define_dir=`eval echo [$]$2`
+ ac_define_dir=`eval echo [$]last_ac_define_dir`
+ ac_define_dir_counter=0
+ while test "x[$]last_ac_define_dir" != "x[$]ac_define_dir"; do
+ last_ac_define_dir="[$]ac_define_dir"
+ ac_define_dir=`eval echo [$]last_ac_define_dir`
+ AS_VAR_ARITH([ac_define_dir_counter], [$ac_define_dir_counter + 1])
+ AS_VAR_IF([ac_define_dir_counter], [128],
+ [AC_MSG_ERROR([detected recusive directory expansion when expanding $1=[$]$2: [$]ac_define_dir])
+ break])
+ done