Edit: /usr/share/aclocal-1.16/lispdir.m4 (2152B)
## ------------------------ -*- Autoconf -*-
## Emacs LISP file handling
## From Ulrich Drepper
## Almost entirely rewritten by Alexandre Oliva
## ------------------------
# Copyright (C) 1996-2018 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# AM_PATH_LISPDIR
# ---------------
AC_DEFUN([AM_PATH_LISPDIR],
[AC_PREREQ([2.60])dnl
# If set to t, that means we are running in a shell under Emacs.
# If you have an Emacs named "t", then use the full path.
test x"$EMACS" = xt && EMACS=
AC_CHECK_PROGS([EMACS], [emacs xemacs], [no])
AC_ARG_VAR([EMACS], [the Emacs editor command])
AC_ARG_VAR([EMACSLOADPATH], [the Emacs library search path])
AC_ARG_WITH([lispdir],
[AS_HELP_STRING([--with-lispdir],
[override the default lisp directory])],
[ lispdir="$withval"
AC_MSG_CHECKING([where .elc files should go])
AC_MSG_RESULT([$lispdir])],
[
AC_CACHE_CHECK([where .elc files should go], [am_cv_lispdir], [
if test $EMACS != "no"; then
if test x${lispdir+set} != xset; then
# If $EMACS isn't GNU Emacs or XEmacs, this can blow up pretty badly
# Some emacsen will start up in interactive mode, requiring C-x C-c to exit,
# which is non-obvious for non-emacs users.
# Redirecting /dev/null should help a bit; pity we can't detect "broken"
# emacsen earlier and avoid running this altogether.
AC_RUN_LOG([$EMACS -batch -Q -eval '(while load-path (princ (concat (car load-path) "\n")) (setq load-path (cdr load-path)))' conftest.out])
am_cv_lispdir=`sed -n \
-e 's,/$,,' \
-e '/.*\/lib\/x*emacs\/site-lisp$/{s,.*/lib/\(x*emacs/site-lisp\)$,${libdir}/\1,;p;q;}' \
-e '/.*\/share\/x*emacs\/site-lisp$/{s,.*/share/\(x*emacs/site-lisp\),${datarootdir}/\1,;p;q;}' \
conftest.out`
rm conftest.out
fi
fi
test -z "$am_cv_lispdir" && am_cv_lispdir='${datadir}/emacs/site-lisp'
])
lispdir="$am_cv_lispdir"
])
AC_SUBST([lispdir])
])# AM_PATH_LISPDIR