Merge with GCC. Eliminate quilt bits.

10 files changed, 1 insertions, 1153 deletions

diff --git a/m4/asmcfi.m4 b/m4/asmcfi.m4
deleted file mode 100644
index dbf73a0..0000000
--- a/m4/asmcfi.m4
+++ /dev/null
@@ -1,13 +0,0 @@
-AC_DEFUN([GCC_AS_CFI_PSEUDO_OP],
-[AC_CACHE_CHECK([assembler .cfi pseudo-op support],
-    gcc_cv_as_cfi_pseudo_op, [
-    gcc_cv_as_cfi_pseudo_op=unknown
-    AC_TRY_COMPILE([asm (".cfi_startproc\n\t.cfi_endproc");],,
-		   [gcc_cv_as_cfi_pseudo_op=yes],
-		   [gcc_cv_as_cfi_pseudo_op=no])
- ])
- if test "x$gcc_cv_as_cfi_pseudo_op" = xyes; then
-    AC_DEFINE(HAVE_AS_CFI_PSEUDO_OP, 1,
-	      [Define if your assembler supports .cfi_* directives.])
- fi
-])
diff --git a/m4/ax_cc_maxopt.m4 b/m4/ax_cc_maxopt.m4
deleted file mode 100644
index f5f7517..0000000
--- a/m4/ax_cc_maxopt.m4
+++ /dev/null
@@ -1,180 +0,0 @@
-# ===========================================================================
-#       http://www.gnu.org/software/autoconf-archive/ax_cc_maxopt.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_CC_MAXOPT
-#
-# DESCRIPTION
-#
-#   Try to turn on "good" C optimization flags for various compilers and
-#   architectures, for some definition of "good". (In our case, good for
-#   FFTW and hopefully for other scientific codes. Modify as needed.)
-#
-#   The user can override the flags by setting the CFLAGS environment
-#   variable. The user can also specify --enable-portable-binary in order to
-#   disable any optimization flags that might result in a binary that only
-#   runs on the host architecture.
-#
-#   Note also that the flags assume that ANSI C aliasing rules are followed
-#   by the code (e.g. for gcc's -fstrict-aliasing), and that floating-point
-#   computations can be re-ordered as needed.
-#
-#   Requires macros: AX_CHECK_COMPILE_FLAG, AX_COMPILER_VENDOR,
-#   AX_GCC_ARCHFLAG, AX_GCC_X86_CPUID.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
-#   Copyright (c) 2008 Matteo Frigo
-#
-#   This program is free software: you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation, either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 13
-
-AC_DEFUN([AX_CC_MAXOPT],
-[
-AC_REQUIRE([AC_PROG_CC])
-AC_REQUIRE([AX_COMPILER_VENDOR])
-AC_REQUIRE([AC_CANONICAL_HOST])
-
-AC_ARG_ENABLE(portable-binary, [AS_HELP_STRING([--enable-portable-binary], [disable compiler optimizations that would produce unportable binaries])],
-	acx_maxopt_portable=$enableval, acx_maxopt_portable=no)
-
-# Try to determine "good" native compiler flags if none specified via CFLAGS
-if test "$ac_test_CFLAGS" != "set"; then
-  CFLAGS=""
-  case $ax_cv_c_compiler_vendor in
-    dec) CFLAGS="-newc -w0 -O5 -ansi_alias -ansi_args -fp_reorder -tune host"
-	 if test "x$acx_maxopt_portable" = xno; then
-           CFLAGS="$CFLAGS -arch host"
-         fi;;
-
-    sun) CFLAGS="-native -fast -xO5 -dalign"
-	 if test "x$acx_maxopt_portable" = xyes; then
-	   CFLAGS="$CFLAGS -xarch=generic"
-         fi;;
-
-    hp)  CFLAGS="+Oall +Optrs_ansi +DSnative"
-	 if test "x$acx_maxopt_portable" = xyes; then
-	   CFLAGS="$CFLAGS +DAportable"
-	 fi;;
-
-    ibm) if test "x$acx_maxopt_portable" = xno; then
-           xlc_opt="-qarch=auto -qtune=auto"
-	 else
-           xlc_opt="-qtune=auto"
-	 fi
-         AX_CHECK_COMPILE_FLAG($xlc_opt,
-		CFLAGS="-O3 -qansialias -w $xlc_opt",
-               [CFLAGS="-O3 -qansialias -w"
-                echo "******************************************************"
-                echo "*  You seem to have the IBM  C compiler.  It is      *"
-                echo "*  recommended for best performance that you use:    *"
-                echo "*                                                    *"
-                echo "*    CFLAGS=-O3 -qarch=xxx -qtune=xxx -qansialias -w *"
-                echo "*                      ^^^        ^^^                *"
-                echo "*  where xxx is pwr2, pwr3, 604, or whatever kind of *"
-                echo "*  CPU you have.  (Set the CFLAGS environment var.   *"
-                echo "*  and re-run configure.)  For more info, man cc.    *"
-                echo "******************************************************"])
-         ;;
-
-    intel) CFLAGS="-O3 -ansi_alias"
-	if test "x$acx_maxopt_portable" = xno; then
-	  icc_archflag=unknown
-	  icc_flags=""
-	  case $host_cpu in
-	    i686*|x86_64*)
-              # icc accepts gcc assembly syntax, so these should work:
-	      AX_GCC_X86_CPUID(0)
-              AX_GCC_X86_CPUID(1)
-	      case $ax_cv_gcc_x86_cpuid_0 in # see AX_GCC_ARCHFLAG
-                *:756e6547:*:*) # Intel
-                  case $ax_cv_gcc_x86_cpuid_1 in
-                    *6a?:*[[234]]:*:*|*6[[789b]]?:*:*:*) icc_flags="-xK";;
-                    *f3[[347]]:*:*:*|*f4[1347]:*:*:*) icc_flags="-xP -xN -xW -xK";;
-                    *f??:*:*:*) icc_flags="-xN -xW -xK";;
-                  esac ;;
-              esac ;;
-          esac
-          if test "x$icc_flags" != x; then
-            for flag in $icc_flags; do
-              AX_CHECK_COMPILE_FLAG($flag, [icc_archflag=$flag; break])
-            done
-          fi
-          AC_MSG_CHECKING([for icc architecture flag])
-	  AC_MSG_RESULT($icc_archflag)
-          if test "x$icc_archflag" != xunknown; then
-            CFLAGS="$CFLAGS $icc_archflag"
-          fi
-        fi
-	;;
-
-    gnu)
-     # default optimization flags for gcc on all systems
-     CFLAGS="-O3 -fomit-frame-pointer"
-
-     # -malign-double for x86 systems
-     AX_CHECK_COMPILE_FLAG(-malign-double, CFLAGS="$CFLAGS -malign-double")
-
-     #  -fstrict-aliasing for gcc-2.95+
-     AX_CHECK_COMPILE_FLAG(-fstrict-aliasing,
-	CFLAGS="$CFLAGS -fstrict-aliasing")
-
-     # note that we enable "unsafe" fp optimization with other compilers, too
-     AX_CHECK_COMPILE_FLAG(-ffast-math, CFLAGS="$CFLAGS -ffast-math")
-
-     AX_GCC_ARCHFLAG($acx_maxopt_portable)
-     ;;
-  esac
-
-  if test -z "$CFLAGS"; then
-	echo ""
-	echo "********************************************************"
-        echo "* WARNING: Don't know the best CFLAGS for this system  *"
-        echo "* Use ./configure CFLAGS=... to specify your own flags *"
-	echo "* (otherwise, a default of CFLAGS=-O3 will be used)    *"
-	echo "********************************************************"
-	echo ""
-        CFLAGS="-O3"
-  fi
-
-  AX_CHECK_COMPILE_FLAG($CFLAGS, [], [
-	echo ""
-        echo "********************************************************"
-        echo "* WARNING: The guessed CFLAGS don't seem to work with  *"
-        echo "* your compiler.                                       *"
-        echo "* Use ./configure CFLAGS=... to specify your own flags *"
-        echo "********************************************************"
-        echo ""
-        CFLAGS=""
-  ])
-
-fi
-])
diff --git a/m4/ax_cflags_warn_all.m4 b/m4/ax_cflags_warn_all.m4
deleted file mode 100644
index 0fa3e18..0000000
--- a/m4/ax_cflags_warn_all.m4
+++ /dev/null
@@ -1,122 +0,0 @@
-# ===========================================================================
-#    http://www.gnu.org/software/autoconf-archive/ax_cflags_warn_all.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_CFLAGS_WARN_ALL   [(shellvar [,default, [A/NA]])]
-#   AX_CXXFLAGS_WARN_ALL [(shellvar [,default, [A/NA]])]
-#   AX_FCFLAGS_WARN_ALL  [(shellvar [,default, [A/NA]])]
-#
-# DESCRIPTION
-#
-#   Try to find a compiler option that enables most reasonable warnings.
-#
-#   For the GNU compiler it will be -Wall (and -ansi -pedantic) The result
-#   is added to the shellvar being CFLAGS, CXXFLAGS, or FCFLAGS by default.
-#
-#   Currently this macro knows about the GCC, Solaris, Digital Unix, AIX,
-#   HP-UX, IRIX, NEC SX-5 (Super-UX 10), Cray J90 (Unicos 10.0.0.8), and
-#   Intel compilers.  For a given compiler, the Fortran flags are much more
-#   experimental than their C equivalents.
-#
-#    - $1 shell-variable-to-add-to : CFLAGS, CXXFLAGS, or FCFLAGS
-#    - $2 add-value-if-not-found : nothing
-#    - $3 action-if-found : add value to shellvariable
-#    - $4 action-if-not-found : nothing
-#
-#   NOTE: These macros depend on AX_APPEND_FLAG.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
-#   Copyright (c) 2010 Rhys Ulerich <rhys.ulerich@gmail.com>
-#
-#   This program is free software; you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation; either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 14
-
-AC_DEFUN([AX_FLAGS_WARN_ALL],[dnl
-AS_VAR_PUSHDEF([FLAGS],[_AC_LANG_PREFIX[]FLAGS])dnl
-AS_VAR_PUSHDEF([VAR],[ac_cv_[]_AC_LANG_ABBREV[]flags_warn_all])dnl
-AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum warnings],
-VAR,[VAR="no, unknown"
-ac_save_[]FLAGS="$[]FLAGS"
-for ac_arg dnl
-in "-warn all  % -warn all"   dnl Intel
-   "-pedantic  % -Wall"       dnl GCC
-   "-xstrconst % -v"          dnl Solaris C
-   "-std1      % -verbose -w0 -warnprotos" dnl Digital Unix
-   "-qlanglvl=ansi % -qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd" dnl AIX
-   "-ansi -ansiE % -fullwarn" dnl IRIX
-   "+ESlit     % +w1"         dnl HP-UX C
-   "-Xc        % -pvctl[,]fullmsg" dnl NEC SX-5 (Super-UX 10)
-   "-h conform % -h msglevel 2" dnl Cray C (Unicos)
-   #
-do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
-   AC_COMPILE_IFELSE([AC_LANG_PROGRAM],
-                     [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break])
-done
-FLAGS="$ac_save_[]FLAGS"
-])
-AS_VAR_POPDEF([FLAGS])dnl
-AC_REQUIRE([AX_APPEND_FLAG])
-case ".$VAR" in
-     .ok|.ok,*) m4_ifvaln($3,$3) ;;
-   .|.no|.no,*) m4_default($4,[m4_ifval($2,[AX_APPEND_FLAG([$2], [$1])])]) ;;
-   *) m4_default($3,[AX_APPEND_FLAG([$VAR], [$1])]) ;;
-esac
-AS_VAR_POPDEF([VAR])dnl
-])dnl AX_FLAGS_WARN_ALL
-dnl  implementation tactics:
-dnl   the for-argument contains a list of options. The first part of
-dnl   these does only exist to detect the compiler - usually it is
-dnl   a global option to enable -ansi or -extrawarnings. All other
-dnl   compilers will fail about it. That was needed since a lot of
-dnl   compilers will give false positives for some option-syntax
-dnl   like -Woption or -Xoption as they think of it is a pass-through
-dnl   to later compile stages or something. The "%" is used as a
-dnl   delimiter. A non-option comment can be given after "%%" marks
-dnl   which will be shown but not added to the respective C/CXXFLAGS.
-
-AC_DEFUN([AX_CFLAGS_WARN_ALL],[dnl
-AC_LANG_PUSH([C])
-AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
-AC_LANG_POP([C])
-])
-
-AC_DEFUN([AX_CXXFLAGS_WARN_ALL],[dnl
-AC_LANG_PUSH([C++])
-AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
-AC_LANG_POP([C++])
-])
-
-AC_DEFUN([AX_FCFLAGS_WARN_ALL],[dnl
-AC_LANG_PUSH([Fortran])
-AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
-AC_LANG_POP([Fortran])
-])
diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4
deleted file mode 100644
index c3a8d69..0000000
--- a/m4/ax_check_compile_flag.m4
+++ /dev/null
@@ -1,72 +0,0 @@
-# ===========================================================================
-#   http://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS])
-#
-# DESCRIPTION
-#
-#   Check whether the given FLAG works with the current language's compiler
-#   or gives an error.  (Warnings, however, are ignored)
-#
-#   ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
-#   success/failure.
-#
-#   If EXTRA-FLAGS is defined, it is added to the current language's default
-#   flags (e.g. CFLAGS) when the check is done.  The check is thus made with
-#   the flags: "CFLAGS EXTRA-FLAGS FLAG".  This can for example be used to
-#   force the compiler to issue an error when a bad flag is given.
-#
-#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
-#   macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
-#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
-#
-#   This program is free software: you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation, either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 2
-
-AC_DEFUN([AX_CHECK_COMPILE_FLAG],
-[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX
-AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
-AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
-  ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
-  _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
-  AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
-    [AS_VAR_SET(CACHEVAR,[yes])],
-    [AS_VAR_SET(CACHEVAR,[no])])
-  _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
-AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes],
-  [m4_default([$2], :)],
-  [m4_default([$3], :)])
-AS_VAR_POPDEF([CACHEVAR])dnl
-])dnl AX_CHECK_COMPILE_FLAGS
diff --git a/m4/ax_compiler_vendor.m4 b/m4/ax_compiler_vendor.m4
deleted file mode 100644
index 73e32ea..0000000
--- a/m4/ax_compiler_vendor.m4
+++ /dev/null
@@ -1,84 +0,0 @@
-# ===========================================================================
-#    http://www.gnu.org/software/autoconf-archive/ax_compiler_vendor.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_COMPILER_VENDOR
-#
-# DESCRIPTION
-#
-#   Determine the vendor of the C/C++ compiler, e.g., gnu, intel, ibm, sun,
-#   hp, borland, comeau, dec, cray, kai, lcc, metrowerks, sgi, microsoft,
-#   watcom, etc. The vendor is returned in the cache variable
-#   $ax_cv_c_compiler_vendor for C and $ax_cv_cxx_compiler_vendor for C++.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
-#   Copyright (c) 2008 Matteo Frigo
-#
-#   This program is free software: you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation, either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 11
-
-AC_DEFUN([AX_COMPILER_VENDOR],
-[AC_CACHE_CHECK([for _AC_LANG compiler vendor], ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor,
-  [# note: don't check for gcc first since some other compilers define __GNUC__
-  vendors="intel:     __ICC,__ECC,__INTEL_COMPILER
-           ibm:       __xlc__,__xlC__,__IBMC__,__IBMCPP__
-           pathscale: __PATHCC__,__PATHSCALE__
-           clang:     __clang__
-           gnu:       __GNUC__
-           sun:       __SUNPRO_C,__SUNPRO_CC
-           hp:        __HP_cc,__HP_aCC
-           dec:       __DECC,__DECCXX,__DECC_VER,__DECCXX_VER
-           borland:   __BORLANDC__,__TURBOC__
-           comeau:    __COMO__
-           cray:      _CRAYC
-           kai:       __KCC
-           lcc:       __LCC__
-           sgi:       __sgi,sgi
-           microsoft: _MSC_VER
-           metrowerks: __MWERKS__
-           watcom:    __WATCOMC__
-           portland:  __PGI
-           unknown:   UNKNOWN"
-  for ventest in $vendors; do
-    case $ventest in
-      *:) vendor=$ventest; continue ;;
-      *)  vencpp="defined("`echo $ventest | sed 's/,/) || defined(/g'`")" ;;
-    esac
-    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[
-      #if !($vencpp)
-        thisisanerror;
-      #endif
-    ])], [break])
-  done
-  ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor=`echo $vendor | cut -d: -f1`
- ])
-])
diff --git a/m4/ax_configure_args.m4 b/m4/ax_configure_args.m4
deleted file mode 100644
index 0726b1b..0000000
--- a/m4/ax_configure_args.m4
+++ /dev/null
@@ -1,70 +0,0 @@
-# ===========================================================================
-#     http://www.gnu.org/software/autoconf-archive/ax_configure_args.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_CONFIGURE_ARGS
-#
-# DESCRIPTION
-#
-#   Helper macro for AX_ENABLE_BUILDDIR.
-#
-#   The traditional way of starting a subdir-configure is running the script
-#   with ${1+"$@"} but since autoconf 2.60 this is broken. Instead we have
-#   to rely on eval'ing $ac_configure_args however some old autoconf
-#   versions do not provide that. To ensure maximum portability of autoconf
-#   extension macros this helper can be AC_REQUIRE'd so that
-#   $ac_configure_args will alsways be present.
-#
-#   Sadly, the traditional "exec $SHELL" of the enable_builddir macros is
-#   spoiled now and must be replaced by "eval + exit $?".
-#
-#   Example:
-#
-#     AC_DEFUN([AX_ENABLE_SUBDIR],[dnl
-#       AC_REQUIRE([AX_CONFIGURE_ARGS])dnl
-#       eval $SHELL $ac_configure_args || exit $?
-#       ...])
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
-#
-#   This program is free software; you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation; either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 9
-
-AC_DEFUN([AX_CONFIGURE_ARGS],[
-   # [$]@ is unsable in 2.60+ but earlier autoconf had no ac_configure_args
-   if test "${ac_configure_args+set}" != "set" ; then
-      ac_configure_args=
-      for ac_arg in ${1+"[$]@"}; do
-         ac_configure_args="$ac_configure_args '$ac_arg'"
-      done
-   fi
-])
diff --git a/m4/ax_enable_builddir.m4 b/m4/ax_enable_builddir.m4
deleted file mode 100644
index 3fb8731..0000000
--- a/m4/ax_enable_builddir.m4
+++ /dev/null
@@ -1,300 +0,0 @@
-# ===========================================================================
-#    http://www.gnu.org/software/autoconf-archive/ax_enable_builddir.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_ENABLE_BUILDDIR [(dirstring-or-command [,Makefile.mk [,-all]])]
-#
-# DESCRIPTION
-#
-#   If the current configure was run within the srcdir then we move all
-#   configure-files into a subdir and let the configure steps continue
-#   there. We provide an option --disable-builddir to suppress the move into
-#   a separate builddir.
-#
-#   Defaults:
-#
-#     $1 = $host (overridden with $HOST)
-#     $2 = Makefile.mk
-#     $3 = -all
-#
-#   This macro must be called before AM_INIT_AUTOMAKE. It creates a default
-#   toplevel srcdir Makefile from the information found in the created
-#   toplevel builddir Makefile. It just copies the variables and
-#   rule-targets, each extended with a default rule-execution that recurses
-#   into the build directory of the current "HOST". You can override the
-#   auto-dection through `config.guess` and build-time of course, as in
-#
-#     make HOST=i386-mingw-cross
-#
-#   which can of course set at configure time as well using
-#
-#     configure --host=i386-mingw-cross
-#
-#   After the default has been created, additional rules can be appended
-#   that will not just recurse into the subdirectories and only ever exist
-#   in the srcdir toplevel makefile - these parts are read from the $2 =
-#   Makefile.mk file
-#
-#   The automatic rules are usually scanning the toplevel Makefile for lines
-#   like '#### $host |$builddir' to recognize the place where to recurse
-#   into. Usually, the last one is the only one used. However, almost all
-#   targets have an additional "*-all" rule which makes the script to
-#   recurse into _all_ variants of the current HOST (!!) setting. The "-all"
-#   suffix can be overriden for the macro as well.
-#
-#   a special rule is only given for things like "dist" that will copy the
-#   tarball from the builddir to the sourcedir (or $(PUB)) for reason of
-#   convenience.
-#
-# LICENSE
-#
-#   Copyright (c) 2009 Guido U. Draheim <guidod@gmx.de>
-#   Copyright (c) 2009 Alan Jenkins <alan-jenkins@tuffmail.co.uk>
-#
-#   This program is free software; you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation; either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 23
-
-AC_DEFUN([AX_ENABLE_BUILDDIR],[
-AC_REQUIRE([AC_CANONICAL_HOST])[]dnl
-AC_REQUIRE([AX_CONFIGURE_ARGS])[]dnl
-AC_REQUIRE([AM_AUX_DIR_EXPAND])[]dnl
-AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl
-AS_VAR_PUSHDEF([SUB],[ax_enable_builddir])dnl
-AS_VAR_PUSHDEF([AUX],[ax_enable_builddir_auxdir])dnl
-AS_VAR_PUSHDEF([SED],[ax_enable_builddir_sed])dnl
-SUB="."
-AC_ARG_ENABLE([builddir], AS_HELP_STRING(
-  [--disable-builddir],[disable automatic build in subdir of sources])
-  ,[SUB="$enableval"], [SUB="auto"])
-if test ".$ac_srcdir_defaulted" != ".no" ; then
-if test ".$srcdir" = ".." ; then
-  if test -f config.status ; then
-    AC_MSG_NOTICE(toplevel srcdir already configured... skipping subdir build)
-  else
-    test ".$SUB" = "."  && SUB="."
-    test ".$SUB" = ".no"  && SUB="."
-    test ".$TARGET" = "." && TARGET="$target"
-    test ".$SUB" = ".auto" && SUB="m4_ifval([$1], [$1],[$TARGET])"
-    if test ".$SUB" != ".." ; then    # we know where to go and
-      AS_MKDIR_P([$SUB])
-      echo __.$SUB.__ > $SUB/conftest.tmp
-      cd $SUB
-      if grep __.$SUB.__ conftest.tmp >/dev/null 2>/dev/null ; then
-        rm conftest.tmp
-        AC_MSG_RESULT([continue configure in default builddir "./$SUB"])
-      else
-        AC_MSG_ERROR([could not change to default builddir "./$SUB"])
-      fi
-      srcdir=`echo "$SUB" |
-              sed -e 's,^\./,,;s,[[^/]]$,&/,;s,[[^/]]*/,../,g;s,[[/]]$,,;'`
-      # going to restart from subdirectory location
-      test -f $srcdir/config.log   && mv $srcdir/config.log   .
-      test -f $srcdir/confdefs.h   && mv $srcdir/confdefs.h   .
-      test -f $srcdir/conftest.log && mv $srcdir/conftest.log .
-      test -f $srcdir/$cache_file  && mv $srcdir/$cache_file  .
-      AC_MSG_RESULT(....exec $SHELL $srcdir/[$]0 "--srcdir=$srcdir" "--enable-builddir=$SUB" ${1+"[$]@"})
-      case "[$]0" in # restart
-       [/\\]*) eval $SHELL "'[$]0'" "'--srcdir=$srcdir'" "'--enable-builddir=$SUB'" $ac_configure_args ;;
-       *) eval $SHELL "'$srcdir/[$]0'" "'--srcdir=$srcdir'" "'--enable-builddir=$SUB'" $ac_configure_args ;;
-      esac ; exit $?
-    fi
-  fi
-fi fi
-test ".$SUB" = ".auto" && SUB="."
-dnl ac_path_prog uses "set dummy" to override $@ which would defeat the "exec"
-AC_PATH_PROG(SED,gsed sed, sed)
-AUX="$am_aux_dir"
-AS_VAR_POPDEF([SED])dnl
-AS_VAR_POPDEF([AUX])dnl
-AS_VAR_POPDEF([SUB])dnl
-AC_CONFIG_COMMANDS([buildir],[dnl .............. config.status ..............
-AS_VAR_PUSHDEF([SUB],[ax_enable_builddir])dnl
-AS_VAR_PUSHDEF([TOP],[top_srcdir])dnl
-AS_VAR_PUSHDEF([SRC],[ac_top_srcdir])dnl
-AS_VAR_PUSHDEF([AUX],[ax_enable_builddir_auxdir])dnl
-AS_VAR_PUSHDEF([SED],[ax_enable_builddir_sed])dnl
-pushdef([END],[Makefile.mk])dnl
-pushdef([_ALL],[ifelse([$3],,[-all],[$3])])dnl
-  SRC="$ax_enable_builddir_srcdir"
-  if test ".$SUB" = ".." ; then
-    if test -f "$TOP/Makefile" ; then
-      AC_MSG_NOTICE([skipping TOP/Makefile - left untouched])
-    else
-      AC_MSG_NOTICE([skipping TOP/Makefile - not created])
-    fi
-  else
-    if test -f "$SRC/Makefile" ; then
-      a=`grep "^VERSION " "$SRC/Makefile"` ; b=`grep "^VERSION " Makefile`
-      test "$a" != "$b" && rm "$SRC/Makefile"
-    fi
-    if test -f "$SRC/Makefile" ; then
-	echo "$SRC/Makefile : $SRC/Makefile.in" > $tmp/conftemp.mk
-	echo "	[]@ echo 'REMOVED,,,' >\$[]@" >> $tmp/conftemp.mk
-      eval "${MAKE-make} -f $tmp/conftemp.mk 2>/dev/null >/dev/null"
-      if grep '^REMOVED,,,' "$SRC/Makefile" >/dev/null
-      then rm $SRC/Makefile ; fi
-      cp $tmp/conftemp.mk $SRC/makefiles.mk~      ## DEBUGGING
-    fi
-    if test ! -f "$SRC/Makefile" ; then
-      AC_MSG_NOTICE([create TOP/Makefile guessed from local Makefile])
-      x='`' ; cat >$tmp/conftemp.sed <<_EOF
-/^\$/n
-x
-/^\$/bS
-x
-/\\\\\$/{H;d;}
-{H;s/.*//;x;}
-bM
-:S
-x
-/\\\\\$/{h;d;}
-{h;s/.*//;x;}
-:M
-s/\\(\\n\\)	/\\1 /g
-/^	/d
-/^[[	 ]]*[[\\#]]/d
-/^VPATH *=/d
-s/^srcdir *=.*/srcdir = ./
-s/^top_srcdir *=.*/top_srcdir = ./
-/[[:=]]/!d
-/^\\./d
-dnl Now handle rules (i.e. lines containing ":" but not " = ").
-/ = /b
-/ .= /b
-/:/!b
-s/:.*/:/
-s/ /  /g
-s/ \\([[a-z]][[a-z-]]*[[a-zA-Z0-9]]\\)\\([[ :]]\\)/ \\1 \\1[]_ALL\\2/g
-s/^\\([[a-z]][[a-z-]]*[[a-zA-Z0-9]]\\)\\([[ :]]\\)/\\1 \\1[]_ALL\\2/
-s/  / /g
-/^all all[]_ALL[[ :]]/i\\
-all-configured : all[]_ALL
-dnl dist-all exists... and would make for dist-all-all
-s/ [[a-zA-Z0-9-]]*[]_ALL [[a-zA-Z0-9-]]*[]_ALL[]_ALL//g
-/[]_ALL[]_ALL/d
-a\\
-	@ HOST="\$(HOST)\" \\\\\\
-	; test ".\$\$HOST" = "." && HOST=$x sh $AUX/config.guess $x \\\\\\
-	; BUILD=$x grep "^#### \$\$HOST " Makefile | sed -e 's/.*|//' $x \\\\\\
-	; use=$x basename "\$\@" _ALL $x; n=$x echo \$\$BUILD | wc -w $x \\\\\\
-	; echo "MAKE \$\$HOST : \$\$n * \$\@"; if test "\$\$n" -eq "0" ; then : \\\\\\
-	; BUILD=$x grep "^####.*|" Makefile |tail -1| sed -e 's/.*|//' $x ; fi \\\\\\
-	; test ".\$\$BUILD" = "." && BUILD="." \\\\\\
-	; test "\$\$use" = "\$\@" && BUILD=$x echo "\$\$BUILD" | tail -1 $x \\\\\\
-	; for i in \$\$BUILD ; do test ".\$\$i" = "." && continue \\\\\\
-	; (cd "\$\$i" && test ! -f configure && \$(MAKE) \$\$use) || exit; done
-dnl special rule add-on: "dist" copies the tarball to $(PUB). (source tree)
-/dist[]_ALL *:/a\\
-	@ HOST="\$(HOST)\" \\\\\\
-	; test ".\$\$HOST" = "." && HOST=$x sh $AUX/config.guess $x \\\\\\
-	; BUILD=$x grep "^#### \$\$HOST " Makefile | sed -e 's/.*|//' $x \\\\\\
-	; found=$x echo \$\$BUILD | wc -w $x \\\\\\
-	; echo "MAKE \$\$HOST : \$\$found \$(PACKAGE)-\$(VERSION).tar.*" \\\\\\
-	; if test "\$\$found" -eq "0" ; then : \\\\\\
-	; BUILD=$x grep "^#### .*|" Makefile |tail -1| sed -e 's/.*|//' $x \\\\\\
-	; fi ; for i in \$\$BUILD ; do test ".\$\$i" = "." && continue \\\\\\
-	; for f in \$\$i/\$(PACKAGE)-\$(VERSION).tar.* \\\\\\
-	; do test -f "\$\$f" && mv "\$\$f" \$(PUB). ; done ; break ; done
-dnl special rule add-on: "dist-foo" copies all the archives to $(PUB). (source tree)
-/dist-[[a-zA-Z0-9]]*[]_ALL *:/a\\
-	@ HOST="\$(HOST)\" \\\\\\
-	; test ".\$\$HOST" = "." && HOST=$x sh ./config.guess $x \\\\\\
-	; BUILD=$x grep "^#### \$\$HOST " Makefile | sed -e 's/.*|//' $x \\\\\\
-	; found=$x echo \$\$BUILD | wc -w $x \\\\\\
-	; echo "MAKE \$\$HOST : \$\$found \$(PACKAGE)-\$(VERSION).*" \\\\\\
-	; if test "\$\$found" -eq "0" ; then : \\\\\\
-	; BUILD=$x grep "^#### .*|" Makefile |tail -1| sed -e 's/.*|//' $x \\\\\\
-	; fi ; for i in \$\$BUILD ; do test ".\$\$i" = "." && continue \\\\\\
-	; for f in \$\$i/\$(PACKAGE)-\$(VERSION).* \\\\\\
-	; do test -f "\$\$f" && mv "\$\$f" \$(PUB). ; done ; break ; done
-dnl special rule add-on: "distclean" removes all local builddirs completely
-/distclean[]_ALL *:/a\\
-	@ HOST="\$(HOST)\" \\\\\\
-	; test ".\$\$HOST" = "." && HOST=$x sh $AUX/config.guess $x \\\\\\
-	; BUILD=$x grep "^#### .*|" Makefile | sed -e 's/.*|//' $x \\\\\\
-	; use=$x basename "\$\@" _ALL $x; n=$x echo \$\$BUILD | wc -w $x \\\\\\
-	; echo "MAKE \$\$HOST : \$\$n * \$\@ (all local builds)" \\\\\\
-	; test ".\$\$BUILD" = "." && BUILD="." \\\\\\
-	; for i in \$\$BUILD ; do test ".\$\$i" = "." && continue \\\\\\
-	; echo "# rm -r \$\$i"; done ; echo "# (sleep 3)" ; sleep 3 \\\\\\
-	; for i in \$\$BUILD ; do test ".\$\$i" = "." && continue \\\\\\
-	; echo "\$\$i" | grep "^/" > /dev/null && continue \\\\\\
-	; echo "\$\$i" | grep "^../" > /dev/null && continue \\\\\\
-	; echo "rm -r \$\$i"; (rm -r "\$\$i") ; done ; rm Makefile
-_EOF
-      cp "$tmp/conftemp.sed" "$SRC/makefile.sed~"            ## DEBUGGING
-      $SED -f $tmp/conftemp.sed Makefile >$SRC/Makefile
-      if test -f "$SRC/m4_ifval([$2],[$2],[END])" ; then
-        AC_MSG_NOTICE([extend TOP/Makefile with TOP/m4_ifval([$2],[$2],[END])])
-        cat $SRC/END >>$SRC/Makefile
-      fi ; xxxx="####"
-      echo "$xxxx CONFIGURATIONS FOR TOPLEVEL MAKEFILE: " >>$SRC/Makefile
-      # sanity check
-      if grep '^; echo "MAKE ' $SRC/Makefile >/dev/null ; then
-        AC_MSG_NOTICE([buggy sed found - it deletes tab in "a" text parts])
-        $SED -e '/^@ HOST=/s/^/	/' -e '/^; /s/^/	/' $SRC/Makefile \
-          >$SRC/Makefile~
-        (test -s $SRC/Makefile~ && mv $SRC/Makefile~ $SRC/Makefile) 2>/dev/null
-      fi
-    else
-      xxxx="\\#\\#\\#\\#"
-      # echo "/^$xxxx *$ax_enable_builddir_host /d" >$tmp/conftemp.sed
-      echo "s!^$xxxx [[^|]]* | *$SUB *\$!$xxxx ...... $SUB!" >$tmp/conftemp.sed
-      $SED -f "$tmp/conftemp.sed" "$SRC/Makefile" >$tmp/mkfile.tmp
-        cp "$tmp/conftemp.sed" "$SRC/makefiles.sed~"         ## DEBUGGING
-        cp "$tmp/mkfile.tmp"   "$SRC/makefiles.out~"         ## DEBUGGING
-      if cmp -s "$SRC/Makefile" "$tmp/mkfile.tmp" 2>/dev/null ; then
-        AC_MSG_NOTICE([keeping TOP/Makefile from earlier configure])
-        rm "$tmp/mkfile.tmp"
-      else
-        AC_MSG_NOTICE([reusing TOP/Makefile from earlier configure])
-        mv "$tmp/mkfile.tmp" "$SRC/Makefile"
-      fi
-    fi
-    AC_MSG_NOTICE([build in $SUB (HOST=$ax_enable_builddir_host)])
-    xxxx="####"
-    echo "$xxxx" "$ax_enable_builddir_host" "|$SUB" >>$SRC/Makefile
-  fi
-popdef([END])dnl
-AS_VAR_POPDEF([SED])dnl
-AS_VAR_POPDEF([AUX])dnl
-AS_VAR_POPDEF([SRC])dnl
-AS_VAR_POPDEF([TOP])dnl
-AS_VAR_POPDEF([SUB])dnl
-],[dnl
-ax_enable_builddir_srcdir="$srcdir"                    # $srcdir
-ax_enable_builddir_host="$HOST"                        # $HOST / $host
-ax_enable_builddir_version="$VERSION"                  # $VERSION
-ax_enable_builddir_package="$PACKAGE"                  # $PACKAGE
-ax_enable_builddir_auxdir="$ax_enable_builddir_auxdir" # $AUX
-ax_enable_builddir_sed="$ax_enable_builddir_sed"       # $SED
-ax_enable_builddir="$ax_enable_builddir"               # $SUB
-])dnl
-])
diff --git a/m4/ax_gcc_archflag.m4 b/m4/ax_gcc_archflag.m4
deleted file mode 100644
index 3fd050e..0000000
--- a/m4/ax_gcc_archflag.m4
+++ /dev/null
@@ -1,225 +0,0 @@
-# ===========================================================================
-#      http://www.gnu.org/software/autoconf-archive/ax_gcc_archflag.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_GCC_ARCHFLAG([PORTABLE?], [ACTION-SUCCESS], [ACTION-FAILURE])
-#
-# DESCRIPTION
-#
-#   This macro tries to guess the "native" arch corresponding to the target
-#   architecture for use with gcc's -march=arch or -mtune=arch flags. If
-#   found, the cache variable $ax_cv_gcc_archflag is set to this flag and
-#   ACTION-SUCCESS is executed; otherwise $ax_cv_gcc_archflag is set to
-#   "unknown" and ACTION-FAILURE is executed. The default ACTION-SUCCESS is
-#   to add $ax_cv_gcc_archflag to the end of $CFLAGS.
-#
-#   PORTABLE? should be either [yes] (default) or [no]. In the former case,
-#   the flag is set to -mtune (or equivalent) so that the architecture is
-#   only used for tuning, but the instruction set used is still portable. In
-#   the latter case, the flag is set to -march (or equivalent) so that
-#   architecture-specific instructions are enabled.
-#
-#   The user can specify --with-gcc-arch=<arch> in order to override the
-#   macro's choice of architecture, or --without-gcc-arch to disable this.
-#
-#   When cross-compiling, or if $CC is not gcc, then ACTION-FAILURE is
-#   called unless the user specified --with-gcc-arch manually.
-#
-#   Requires macros: AX_CHECK_COMPILE_FLAG, AX_GCC_X86_CPUID
-#
-#   (The main emphasis here is on recent CPUs, on the principle that doing
-#   high-performance computing on old hardware is uncommon.)
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
-#   Copyright (c) 2008 Matteo Frigo
-#   Copyright (c) 2012 Tsukasa Oi
-#
-#   This program is free software: you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation, either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 11
-
-AC_DEFUN([AX_GCC_ARCHFLAG],
-[AC_REQUIRE([AC_PROG_CC])
-AC_REQUIRE([AC_CANONICAL_HOST])
-
-AC_ARG_WITH(gcc-arch, [AS_HELP_STRING([--with-gcc-arch=<arch>], [use architecture <arch> for gcc -march/-mtune, instead of guessing])],
-	ax_gcc_arch=$withval, ax_gcc_arch=yes)
-
-AC_MSG_CHECKING([for gcc architecture flag])
-AC_MSG_RESULT([])
-AC_CACHE_VAL(ax_cv_gcc_archflag,
-[
-ax_cv_gcc_archflag="unknown"
-
-if test "$GCC" = yes; then
-
-if test "x$ax_gcc_arch" = xyes; then
-ax_gcc_arch=""
-if test "$cross_compiling" = no; then
-case $host_cpu in
-  i[[3456]]86*|x86_64*) # use cpuid codes
-     AX_GCC_X86_CPUID(0)
-     AX_GCC_X86_CPUID(1)
-     case $ax_cv_gcc_x86_cpuid_0 in
-       *:756e6547:*:*) # Intel
-          case $ax_cv_gcc_x86_cpuid_1 in
-	    *5[[48]]?:*:*:*) ax_gcc_arch="pentium-mmx pentium" ;;
-	    *5??:*:*:*) ax_gcc_arch=pentium ;;
-	    *0?6[[3456]]?:*:*:*) ax_gcc_arch="pentium2 pentiumpro" ;;
-	    *0?6a?:*[[01]]:*:*) ax_gcc_arch="pentium2 pentiumpro" ;;
-	    *0?6a?:*[[234]]:*:*) ax_gcc_arch="pentium3 pentiumpro" ;;
-	    *0?6[[9de]]?:*:*:*) ax_gcc_arch="pentium-m pentium3 pentiumpro" ;;
-	    *0?6[[78b]]?:*:*:*) ax_gcc_arch="pentium3 pentiumpro" ;;
-	    *0?6f?:*:*:*|*1?66?:*:*:*) ax_gcc_arch="core2 pentium-m pentium3 pentiumpro" ;;
-	    *1?6[[7d]]?:*:*:*) ax_gcc_arch="penryn core2 pentium-m pentium3 pentiumpro" ;;
-	    *1?6[[aef]]?:*:*:*|*2?6[[5cef]]?:*:*:*) ax_gcc_arch="corei7 core2 pentium-m pentium3 pentiumpro" ;;
-	    *1?6c?:*:*:*|*[[23]]?66?:*:*:*) ax_gcc_arch="atom core2 pentium-m pentium3 pentiumpro" ;;
-	    *2?6[[ad]]?:*:*:*) ax_gcc_arch="corei7-avx corei7 core2 pentium-m pentium3 pentiumpro" ;;
-	    *0?6??:*:*:*) ax_gcc_arch=pentiumpro ;;
-	    *6??:*:*:*) ax_gcc_arch="core2 pentiumpro" ;;
-	    ?000?f3[[347]]:*:*:*|?000?f4[1347]:*:*:*|?000?f6?:*:*:*)
-		case $host_cpu in
-	          x86_64*) ax_gcc_arch="nocona pentium4 pentiumpro" ;;
-	          *) ax_gcc_arch="prescott pentium4 pentiumpro" ;;
-	        esac ;;
-	    ?000?f??:*:*:*) ax_gcc_arch="pentium4 pentiumpro";;
-          esac ;;
-       *:68747541:*:*) # AMD
-          case $ax_cv_gcc_x86_cpuid_1 in
-	    *5[[67]]?:*:*:*) ax_gcc_arch=k6 ;;
-	    *5[[8d]]?:*:*:*) ax_gcc_arch="k6-2 k6" ;;
-	    *5[[9]]?:*:*:*) ax_gcc_arch="k6-3 k6" ;;
-	    *60?:*:*:*) ax_gcc_arch=k7 ;;
-	    *6[[12]]?:*:*:*) ax_gcc_arch="athlon k7" ;;
-	    *6[[34]]?:*:*:*) ax_gcc_arch="athlon-tbird k7" ;;
-	    *67?:*:*:*) ax_gcc_arch="athlon-4 athlon k7" ;;
-	    *6[[68a]]?:*:*:*)
-	       AX_GCC_X86_CPUID(0x80000006) # L2 cache size
-	       case $ax_cv_gcc_x86_cpuid_0x80000006 in
-                 *:*:*[[1-9a-f]]??????:*) # (L2 = ecx >> 16) >= 256
-			ax_gcc_arch="athlon-xp athlon-4 athlon k7" ;;
-                 *) ax_gcc_arch="athlon-4 athlon k7" ;;
-	       esac ;;
-	    ?00??f[[4cef8b]]?:*:*:*) ax_gcc_arch="athlon64 k8" ;;
-	    ?00??f5?:*:*:*) ax_gcc_arch="opteron k8" ;;
-	    ?00??f7?:*:*:*) ax_gcc_arch="athlon-fx opteron k8" ;;
-	    ?00??f??:*:*:*) ax_gcc_arch="k8" ;;
-	    ?05??f??:*:*:*) ax_gcc_arch="btver1 amdfam10 k8" ;;
-	    ?06??f??:*:*:*) ax_gcc_arch="bdver1 amdfam10 k8" ;;
-	    *f??:*:*:*) ax_gcc_arch="amdfam10 k8" ;;
-          esac ;;
-	*:746e6543:*:*) # IDT
-	   case $ax_cv_gcc_x86_cpuid_1 in
-	     *54?:*:*:*) ax_gcc_arch=winchip-c6 ;;
-	     *58?:*:*:*) ax_gcc_arch=winchip2 ;;
-	     *6[[78]]?:*:*:*) ax_gcc_arch=c3 ;;
-	     *69?:*:*:*) ax_gcc_arch="c3-2 c3" ;;
-	   esac ;;
-     esac
-     if test x"$ax_gcc_arch" = x; then # fallback
-	case $host_cpu in
-	  i586*) ax_gcc_arch=pentium ;;
-	  i686*) ax_gcc_arch=pentiumpro ;;
-        esac
-     fi
-     ;;
-
-  sparc*)
-     AC_PATH_PROG([PRTDIAG], [prtdiag], [prtdiag], [$PATH:/usr/platform/`uname -i`/sbin/:/usr/platform/`uname -m`/sbin/])
-     cputype=`(((grep cpu /proc/cpuinfo | cut -d: -f2) ; ($PRTDIAG -v |grep -i sparc) ; grep -i cpu /var/run/dmesg.boot ) | head -n 1) 2> /dev/null`
-     cputype=`echo "$cputype" | tr -d ' -' |tr $as_cr_LETTERS $as_cr_letters`
-     case $cputype in
-         *ultrasparciv*) ax_gcc_arch="ultrasparc4 ultrasparc3 ultrasparc v9" ;;
-         *ultrasparciii*) ax_gcc_arch="ultrasparc3 ultrasparc v9" ;;
-         *ultrasparc*) ax_gcc_arch="ultrasparc v9" ;;
-         *supersparc*|*tms390z5[[05]]*) ax_gcc_arch="supersparc v8" ;;
-         *hypersparc*|*rt62[[056]]*) ax_gcc_arch="hypersparc v8" ;;
-         *cypress*) ax_gcc_arch=cypress ;;
-     esac ;;
-
-  alphaev5) ax_gcc_arch=ev5 ;;
-  alphaev56) ax_gcc_arch=ev56 ;;
-  alphapca56) ax_gcc_arch="pca56 ev56" ;;
-  alphapca57) ax_gcc_arch="pca57 pca56 ev56" ;;
-  alphaev6) ax_gcc_arch=ev6 ;;
-  alphaev67) ax_gcc_arch=ev67 ;;
-  alphaev68) ax_gcc_arch="ev68 ev67" ;;
-  alphaev69) ax_gcc_arch="ev69 ev68 ev67" ;;
-  alphaev7) ax_gcc_arch="ev7 ev69 ev68 ev67" ;;
-  alphaev79) ax_gcc_arch="ev79 ev7 ev69 ev68 ev67" ;;
-
-  powerpc*)
-     cputype=`((grep cpu /proc/cpuinfo | head -n 1 | cut -d: -f2 | cut -d, -f1 | sed 's/ //g') ; /usr/bin/machine ; /bin/machine; grep CPU /var/run/dmesg.boot | head -n 1 | cut -d" " -f2) 2> /dev/null`
-     cputype=`echo $cputype | sed -e 's/ppc//g;s/ *//g'`
-     case $cputype in
-       *750*) ax_gcc_arch="750 G3" ;;
-       *740[[0-9]]*) ax_gcc_arch="$cputype 7400 G4" ;;
-       *74[[4-5]][[0-9]]*) ax_gcc_arch="$cputype 7450 G4" ;;
-       *74[[0-9]][[0-9]]*) ax_gcc_arch="$cputype G4" ;;
-       *970*) ax_gcc_arch="970 G5 power4";;
-       *POWER4*|*power4*|*gq*) ax_gcc_arch="power4 970";;
-       *POWER5*|*power5*|*gr*|*gs*) ax_gcc_arch="power5 power4 970";;
-       603ev|8240) ax_gcc_arch="$cputype 603e 603";;
-       *) ax_gcc_arch=$cputype ;;
-     esac
-     ax_gcc_arch="$ax_gcc_arch powerpc"
-     ;;
-esac
-fi # not cross-compiling
-fi # guess arch
-
-if test "x$ax_gcc_arch" != x -a "x$ax_gcc_arch" != xno; then
-for arch in $ax_gcc_arch; do
-  if test "x[]m4_default([$1],yes)" = xyes; then # if we require portable code
-    flags="-mtune=$arch"
-    # -mcpu=$arch and m$arch generate nonportable code on every arch except
-    # x86.  And some other arches (e.g. Alpha) don't accept -mtune.  Grrr.
-    case $host_cpu in i*86|x86_64*) flags="$flags -mcpu=$arch -m$arch";; esac
-  else
-    flags="-march=$arch -mcpu=$arch -m$arch"
-  fi
-  for flag in $flags; do
-    AX_CHECK_COMPILE_FLAG($flag, [ax_cv_gcc_archflag=$flag; break])
-  done
-  test "x$ax_cv_gcc_archflag" = xunknown || break
-done
-fi
-
-fi # $GCC=yes
-])
-AC_MSG_CHECKING([for gcc architecture flag])
-AC_MSG_RESULT($ax_cv_gcc_archflag)
-if test "x$ax_cv_gcc_archflag" = xunknown; then
-  m4_default([$3],:)
-else
-  m4_default([$2], [CFLAGS="$CFLAGS $ax_cv_gcc_archflag"])
-fi
-])
diff --git a/m4/ax_gcc_x86_cpuid.m4 b/m4/ax_gcc_x86_cpuid.m4
deleted file mode 100644
index 7d46fee..0000000
--- a/m4/ax_gcc_x86_cpuid.m4
+++ /dev/null
@@ -1,79 +0,0 @@
-# ===========================================================================
-#     http://www.gnu.org/software/autoconf-archive/ax_gcc_x86_cpuid.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_GCC_X86_CPUID(OP)
-#
-# DESCRIPTION
-#
-#   On Pentium and later x86 processors, with gcc or a compiler that has a
-#   compatible syntax for inline assembly instructions, run a small program
-#   that executes the cpuid instruction with input OP. This can be used to
-#   detect the CPU type.
-#
-#   On output, the values of the eax, ebx, ecx, and edx registers are stored
-#   as hexadecimal strings as "eax:ebx:ecx:edx" in the cache variable
-#   ax_cv_gcc_x86_cpuid_OP.
-#
-#   If the cpuid instruction fails (because you are running a
-#   cross-compiler, or because you are not using gcc, or because you are on
-#   a processor that doesn't have this instruction), ax_cv_gcc_x86_cpuid_OP
-#   is set to the string "unknown".
-#
-#   This macro mainly exists to be used in AX_GCC_ARCHFLAG.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
-#   Copyright (c) 2008 Matteo Frigo
-#
-#   This program is free software: you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation, either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 7
-
-AC_DEFUN([AX_GCC_X86_CPUID],
-[AC_REQUIRE([AC_PROG_CC])
-AC_LANG_PUSH([C])
-AC_CACHE_CHECK(for x86 cpuid $1 output, ax_cv_gcc_x86_cpuid_$1,
- [AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>], [
-     int op = $1, eax, ebx, ecx, edx;
-     FILE *f;
-      __asm__("cpuid"
-        : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
-        : "a" (op));
-     f = fopen("conftest_cpuid", "w"); if (!f) return 1;
-     fprintf(f, "%x:%x:%x:%x\n", eax, ebx, ecx, edx);
-     fclose(f);
-     return 0;
-])],
-     [ax_cv_gcc_x86_cpuid_$1=`cat conftest_cpuid`; rm -f conftest_cpuid],
-     [ax_cv_gcc_x86_cpuid_$1=unknown; rm -f conftest_cpuid],
-     [ax_cv_gcc_x86_cpuid_$1=unknown])])
-AC_LANG_POP([C])
-])
diff --git a/m4/libtool.m4 b/m4/libtool.m4
index 0c22338..d812584 100644
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -1280,14 +1280,7 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
 	    LD="${LD-ld} -m elf_i386_fbsd"
 	    ;;
 	  x86_64-*linux*)
-	    case `/usr/bin/file conftest.o` in
-	      *x86-64*)
-	         LD="${LD-ld} -m elf32_x86_64"
-	         ;;
-	      *)
-	         LD="${LD-ld} -m elf_i386"
-	         ;;
-	    esac
+	    LD="${LD-ld} -m elf_i386"
 	    ;;
 	  ppc64-*linux*|powerpc64-*linux*)
 	    LD="${LD-ld} -m elf32ppclinux"