sim: switch to AC_CONFIG_MACRO_DIRS

Rather than hand maintain m4 includes in various autotool files,
use AC_CONFIG_MACRO_DIRS to declare the relevant search paths.
This simplifies the code, makes it more robust, and cleans out
unused logic from configure.

3 files changed, 20 insertions, 1813 deletions

diff --git a/sim/igen/ChangeLog b/sim/igen/ChangeLog
index 548fb0b..54ffcaf 100644
--- a/sim/igen/ChangeLog
+++ b/sim/igen/ChangeLog
@@ -1,3 +1,8 @@
+2021-02-13  Mike Frysinger  <vapier@gentoo.org>
+
+	* configure.ac: Replace sinclude with AC_CONFIG_MACRO_DIRS.
+	* configure: Regenerate.
+
 2021-02-06  Mike Frysinger  <vapier@gentoo.org>
 
 	* Makefile.in (LIBIBERTY_LIB): Delete.
diff --git a/sim/igen/configure b/sim/igen/configure
index 46621b7..0b14176 100755
--- a/sim/igen/configure
+++ b/sim/igen/configure
@@ -653,19 +653,6 @@ CC
 INSTALL_DATA
 INSTALL_SCRIPT
 INSTALL_PROGRAM
-WERROR_CFLAGS
-WARN_CFLAGS
-sim_reserved_bits
-sim_inline
-sim_hw
-sim_hw_objs
-sim_hw_cflags
-sim_default_model
-sim_scache
-sim_float
-sim_endian
-sim_bitsize
-sim_alignment
 target_alias
 host_alias
 build_alias
@@ -703,7 +690,20 @@ PACKAGE_VERSION
 PACKAGE_TARNAME
 PACKAGE_NAME
 PATH_SEPARATOR
-SHELL'
+SHELL
+WERROR_CFLAGS
+WARN_CFLAGS
+sim_reserved_bits
+sim_inline
+sim_hw
+sim_hw_objs
+sim_hw_cflags
+sim_default_model
+sim_scache
+sim_float
+sim_endian
+sim_bitsize
+sim_alignment'
 ac_subst_files=''
 ac_user_opts='
 enable_option_checking
@@ -2065,1804 +2065,6 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
-# This file contains common code used by all simulators.
-#
-# SIM_AC_COMMON invokes AC macros used by all simulators and by the common
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-# SIM_AC_OUTPUT is a cover function to AC_OUTPUT to generate the Makefile.
-# It is intended to be invoked last.
-#
-# See README-HACKING for more details.
-
-# Include global overrides and fixes for Autoconf.
-
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-#
-#   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
-#                 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
-#   Written by Gordon Matzigkeit, 1996
-#
-# 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.
-
-
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-# serial 56 LT_INIT
-
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-# LT_PREREQ(VERSION)
-# ------------------
-# Complain and exit if this libtool version is less that VERSION.
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-# _LT_CHECK_BUILDDIR
-# ------------------
-# Complain if the absolute build directory name contains unusual characters
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-# Helper functions for option handling.                    -*- Autoconf -*-
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-
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-# This file is free software; the Free Software Foundation gives
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-#   Copyright (C) 2004 Free Software Foundation, Inc.
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-#   Copyright (C) 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
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-# This file is free software; the Free Software Foundation gives
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-
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-##                                                          -*- Autoconf -*-
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-# Free Software Foundation, Inc.
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-# This file is free software; the Free Software Foundation
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diff --git a/sim/igen/configure.ac b/sim/igen/configure.ac
index 06ae3eb..5763b84 100644
--- a/sim/igen/configure.ac
+++ b/sim/igen/configure.ac
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 AC_INIT(table.h)
-sinclude(../common/acinclude.m4)
+AC_CONFIG_MACRO_DIRS([../common ../.. ../../config])
 
 AC_PROG_INSTALL
 AC_PROG_CC