michael@0: # lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*- michael@0: # michael@0: # Copyright (C) 2004, 2005, 2007 Free Software Foundation, Inc. michael@0: # Written by Scott James Remnant, 2004. michael@0: # michael@0: # This file is free software; the Free Software Foundation gives michael@0: # unlimited permission to copy and/or distribute it, with or without michael@0: # modifications, as long as this notice is preserved. michael@0: michael@0: # serial 4 lt~obsolete.m4 michael@0: michael@0: # These exist entirely to fool aclocal when bootstrapping libtool. michael@0: # michael@0: # In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN) michael@0: # which have later been changed to m4_define as they aren't part of the michael@0: # exported API, or moved to Autoconf or Automake where they belong. michael@0: # michael@0: # The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN michael@0: # in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us michael@0: # using a macro with the same name in our local m4/libtool.m4 it'll michael@0: # pull the old libtool.m4 in (it doesn't see our shiny new m4_define michael@0: # and doesn't know about Autoconf macros at all.) michael@0: # michael@0: # So we provide this file, which has a silly filename so it's always michael@0: # included after everything else. This provides aclocal with the michael@0: # AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything michael@0: # because those macros already exist, or will be overwritten later. michael@0: # We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6. michael@0: # michael@0: # Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here. michael@0: # Yes, that means every name once taken will need to remain here until michael@0: # we give up compatibility with versions before 1.7, at which point michael@0: # we need to keep only those names which we still refer to. michael@0: michael@0: # This is to help aclocal find these macros, as it can't see m4_define. michael@0: AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])]) michael@0: michael@0: m4_ifndef([AC_LIBTOOL_LINKER_OPTION], [AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])]) michael@0: m4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP])]) michael@0: m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH], 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