auto/fmt/xfmt

echo "#ifndef $NGX_FMT_NAME"                 >> $NGX_AUTO_CONFIG_H
echo "#define $NGX_FMT_NAME  \"$NGX_FMT\"" | sed -e 's/d"$/x"/' \
                                             >> $NGX_AUTO_CONFIG_H
echo "#endif"                                >> $NGX_AUTO_CONFIG_H
echo                                         >> $NGX_AUTO_CONFIG_H