Lines Matching refs:ac_envvar
1254 ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
1256 expr "x$ac_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&
1257 { echo "$as_me: error: invalid variable name: $ac_envvar" >&2
1259 eval $ac_envvar=\$ac_optarg
1260 export $ac_envvar ;;
