lt~obsolete.m4 revision 9f00f3a1
19f00f3a1Smrg# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*- 29f00f3a1Smrg# 39f00f3a1Smrg# Copyright (C) 2004, 2005, 2007, 2009 Free Software Foundation, Inc. 49f00f3a1Smrg# Written by Scott James Remnant, 2004. 59f00f3a1Smrg# 69f00f3a1Smrg# This file is free software; the Free Software Foundation gives 79f00f3a1Smrg# unlimited permission to copy and/or distribute it, with or without 89f00f3a1Smrg# modifications, as long as this notice is preserved. 99f00f3a1Smrg 109f00f3a1Smrg# serial 5 lt~obsolete.m4 119f00f3a1Smrg 129f00f3a1Smrg# These exist entirely to fool aclocal when bootstrapping libtool. 139f00f3a1Smrg# 149f00f3a1Smrg# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN) 159f00f3a1Smrg# which have later been changed to m4_define as they aren't part of the 169f00f3a1Smrg# exported API, or moved to Autoconf or Automake where they belong. 179f00f3a1Smrg# 189f00f3a1Smrg# The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN 199f00f3a1Smrg# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us 209f00f3a1Smrg# using a macro with the same name in our local m4/libtool.m4 it'll 219f00f3a1Smrg# pull the old libtool.m4 in (it doesn't see our shiny new m4_define 229f00f3a1Smrg# and doesn't know about Autoconf macros at all.) 239f00f3a1Smrg# 249f00f3a1Smrg# So we provide this file, which has a silly filename so it's always 259f00f3a1Smrg# included after everything else. This provides aclocal with the 269f00f3a1Smrg# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything 279f00f3a1Smrg# because those macros already exist, or will be overwritten later. 289f00f3a1Smrg# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6. 299f00f3a1Smrg# 309f00f3a1Smrg# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here. 319f00f3a1Smrg# Yes, that means every name once taken will need to remain here until 329f00f3a1Smrg# we give up compatibility with versions before 1.7, at which point 339f00f3a1Smrg# we need to keep only those names which we still refer to. 349f00f3a1Smrg 359f00f3a1Smrg# This is to help aclocal find these macros, as it can't see m4_define. 369f00f3a1SmrgAC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])]) 379f00f3a1Smrg 389f00f3a1Smrgm4_ifndef([AC_LIBTOOL_LINKER_OPTION], [AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])]) 399f00f3a1Smrgm4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP])]) 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