$ date
Sat Oct  1 17:13:40 CDT 2022
$ cd /tmp
$ curl -sLJO https://raw.githubusercontent.com/python/cpython/main/configure.ac
$ grep -n \)dnl configure.ac
19:)dnl
24:)dnl
32:AC_DEFUN([_SAVE_VAR], [AS_VAR_COPY([save_][$1], [$1])])dnl
33:AC_DEFUN([_RESTORE_VAR], [AS_VAR_COPY([$1], [save_][$1])])dnl
39:)dnl
45:)dnl
50:)dnl
6122:  ])dnl WITH_SAVE_ENV()
6321:])dnl ac_cv_header_ncurses_h = yes
6383:])dnl ac_cv_header_panel_h = yes
7178:  m4_pushdef([modcond], [MODULE_]m4_toupper([$1]))dnl
7179:  m4_pushdef([modstate], [py_cv_module_$1])dnl
7193:  m4_popdef([modcond])dnl
7194:  m4_popdef([modstate])dnl
7202:  m4_pushdef([modcond], [MODULE_]m4_toupper([$1]))dnl
7203:  m4_pushdef([modstate], [py_cv_module_$1])dnl
7212:  m4_popdef([modcond])dnl
7213:  m4_popdef([modstate])dnl
$