172af6995Smrg# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*- 272af6995Smrg# 3a773ec55Smrg# Copyright (C) 2004-2005, 2007, 2009, 2011-2019, 2021-2022 Free 4a773ec55Smrg# Software Foundation, Inc. 572af6995Smrg# Written by Scott James Remnant, 2004. 672af6995Smrg# 772af6995Smrg# This file is free software; the Free Software Foundation gives 872af6995Smrg# unlimited permission to copy and/or distribute it, with or without 972af6995Smrg# modifications, as long as this notice is preserved. 1072af6995Smrg 1172af6995Smrg# serial 5 lt~obsolete.m4 1272af6995Smrg 1372af6995Smrg# These exist entirely to fool aclocal when bootstrapping libtool. 1472af6995Smrg# 1572af6995Smrg# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN), 1672af6995Smrg# which have later been changed to m4_define as they aren't part of the 1772af6995Smrg# exported API, or moved to Autoconf or Automake where they belong. 1872af6995Smrg# 1972af6995Smrg# The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN 2072af6995Smrg# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us 2172af6995Smrg# using a macro with the same name in our local m4/libtool.m4 it'll 2272af6995Smrg# pull the old libtool.m4 in (it doesn't see our shiny new m4_define 2372af6995Smrg# and doesn't know about Autoconf macros at all.) 2472af6995Smrg# 2572af6995Smrg# So we provide this file, which has a silly filename so it's always 2672af6995Smrg# included after everything else. This provides aclocal with the 2772af6995Smrg# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything 2872af6995Smrg# because those macros already exist, or will be overwritten later. 2972af6995Smrg# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6. 3072af6995Smrg# 3172af6995Smrg# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here. 3272af6995Smrg# Yes, that means every name once taken will need to remain here until 3372af6995Smrg# we give up compatibility with versions before 1.7, at which point 3472af6995Smrg# we need to keep only those names which we still refer to. 3572af6995Smrg 3672af6995Smrg# This is to help aclocal find these macros, as it can't see m4_define. 3772af6995SmrgAC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])]) 3872af6995Smrg 3972af6995Smrgm4_ifndef([AC_LIBTOOL_LINKER_OPTION], [AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])]) 4072af6995Smrgm4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP])]) 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