lt~obsolete.m4 revision 255365
1255365Sdes# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*- 2255365Sdes# 3255365Sdes# Copyright (C) 2004, 2005, 2007, 2009 Free Software Foundation, Inc. 4255365Sdes# Written by Scott James Remnant, 2004. 5255365Sdes# 6255365Sdes# This file is free software; the Free Software Foundation gives 7255365Sdes# unlimited permission to copy and/or distribute it, with or without 8255365Sdes# modifications, as long as this notice is preserved. 9255365Sdes 10255365Sdes# serial 5 lt~obsolete.m4 11255365Sdes 12255365Sdes# These exist entirely to fool aclocal when bootstrapping libtool. 13255365Sdes# 14255365Sdes# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN) 15255365Sdes# which have later been changed to m4_define as they aren't part of the 16255365Sdes# exported API, or moved to Autoconf or Automake where they belong. 17255365Sdes# 18255365Sdes# The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN 19255365Sdes# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us 20255365Sdes# using a macro with the same name in our local m4/libtool.m4 it'll 21255365Sdes# pull the old libtool.m4 in (it doesn't see our shiny new m4_define 22255365Sdes# and doesn't know about Autoconf macros at all.) 23255365Sdes# 24255365Sdes# So we provide this file, which has a silly filename so it's always 25255365Sdes# included after everything else. This provides aclocal with the 26255365Sdes# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything 27255365Sdes# because those macros already exist, or will be overwritten later. 28255365Sdes# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6. 29255365Sdes# 30255365Sdes# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here. 31255365Sdes# Yes, that means every name once taken will need to remain here until 32255365Sdes# we give up compatibility with versions before 1.7, at which point 33255365Sdes# we need to keep only those names which we still refer to. 34255365Sdes 35255365Sdes# This is to help aclocal find these macros, as it can't see m4_define. 36255365SdesAC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])]) 37255365Sdes 38255365Sdesm4_ifndef([AC_LIBTOOL_LINKER_OPTION], [AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])]) 39255365Sdesm4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP])]) 40255365Sdesm4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH], 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