Lines Matching refs:ac_envvar
1784 ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`1786 expr "x$ac_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&1787 { $as_echo "$as_me: error: invalid variable name: $ac_envvar" >&21789 eval $ac_envvar=\$ac_optarg1790 export $ac_envvar ;;