AC_PROG_CC
+AX_CC_MAXOPT
+
AC_PROG_LIBTOOL
AX_CREATE_STDINT_H(include/isl_stdint.h)
--- /dev/null
+# ===========================================================================
+# http://www.nongnu.org/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_COMPILER_FLAGS, 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.
+
+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, [AC_HELP_STRING([--enable-portable-binary], [disable compiler optimizations that would produce unportable binaries])],
+ acx_maxopt_portable=$withval, acx_maxopt_portable=no)
+
+# Try to determine "good" native compiler flags if none specified via CFLAGS
+if test "$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_COMPILER_FLAGS($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 $icc_flags; do
+ AX_CHECK_COMPILER_FLAGS($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 $icc_archflag"
+ fi
+ fi
+ ;;
+
+ gnu)
+ # default optimization flags for gcc on all systems
+ CFLAGS="-O3 -fomit-frame-pointer"
+
+ # -malign-double for x86 systems
+ AX_CHECK_COMPILER_FLAGS(-malign-double, CFLAGS="$CFLAGS -malign-double")
+
+ # -fstrict-aliasing for gcc-2.95+
+ AX_CHECK_COMPILER_FLAGS(-fstrict-aliasing,
+ CFLAGS="$CFLAGS -fstrict-aliasing")
+
+ # note that we enable "unsafe" fp optimization with other compilers, too
+ AX_CHECK_COMPILER_FLAGS(-ffast-math, CFLAGS="$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_COMPILER_FLAGS($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
+])
--- /dev/null
+# ===========================================================================
+# http://www.nongnu.org/autoconf-archive/ax_cflags_warn_all.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_CFLAGS_WARN_ALL [(shellvar [,default, [A/NA]])]
+#
+# DESCRIPTION
+#
+# Try to find a compiler option that enables most reasonable warnings.
+#
+# For the GNU CC compiler it will be -Wall (and -ansi -pedantic) The
+# result is added to the shellvar being CFLAGS by default.
+#
+# Currently this macro knows about GCC, Solaris C compiler, Digital Unix C
+# compiler, C for AIX Compiler, HP-UX C compiler, IRIX C compiler, NEC
+# SX-5 (Super-UX 10) C compiler, and Cray J90 (Unicos 10.0.0.8) C
+# compiler.
+#
+# - $1 shell-variable-to-add-to : CFLAGS
+# - $2 add-value-if-not-found : nothing
+# - $3 action-if-found : add value to shellvariable
+# - $4 action-if-not-found : nothing
+#
+# 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 2 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.
+
+AC_DEFUN([AX_CFLAGS_WARN_ALL],[dnl
+AS_VAR_PUSHDEF([FLAGS],[CFLAGS])dnl
+AS_VAR_PUSHDEF([VAR],[ac_cv_cflags_warn_all])dnl
+AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum warnings],
+VAR,[VAR="no, unknown"
+ AC_LANG_SAVE
+ AC_LANG_C
+ ac_save_[]FLAGS="$[]FLAGS"
+for ac_arg dnl
+in "-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_TRY_COMPILE([],[return 0;],
+ [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break])
+done
+ FLAGS="$ac_save_[]FLAGS"
+ AC_LANG_RESTORE
+])
+case ".$VAR" in
+ .ok|.ok,*) m4_ifvaln($3,$3) ;;
+ .|.no|.no,*) m4_ifvaln($4,$4,[m4_ifval($2,[
+ AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $2"])
+ m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $2"])]) ;;
+ *) m4_ifvaln($3,$3,[
+ if echo " $[]m4_ifval($1,$1,FLAGS) " | grep " $VAR " 2>&1 >/dev/null
+ then AC_RUN_LOG([: m4_ifval($1,$1,FLAGS) does contain $VAR])
+ else AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"])
+ m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"
+ fi ]) ;;
+esac
+AS_VAR_POPDEF([VAR])dnl
+AS_VAR_POPDEF([FLAGS])dnl
+])
+
+dnl the only difference - the LANG selection... and the default FLAGS
+
+AC_DEFUN([AX_CXXFLAGS_WARN_ALL],[dnl
+AS_VAR_PUSHDEF([FLAGS],[CXXFLAGS])dnl
+AS_VAR_PUSHDEF([VAR],[ax_cv_cxxflags_warn_all])dnl
+AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum warnings],
+VAR,[VAR="no, unknown"
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ ac_save_[]FLAGS="$[]FLAGS"
+for ac_arg dnl
+in "-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_TRY_COMPILE([],[return 0;],
+ [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break])
+done
+ FLAGS="$ac_save_[]FLAGS"
+ AC_LANG_RESTORE
+])
+case ".$VAR" in
+ .ok|.ok,*) m4_ifvaln($3,$3) ;;
+ .|.no|.no,*) m4_ifvaln($4,$4,[m4_ifval($2,[
+ AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $2"])
+ m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $2"])]) ;;
+ *) m4_ifvaln($3,$3,[
+ if echo " $[]m4_ifval($1,$1,FLAGS) " | grep " $VAR " 2>&1 >/dev/null
+ then AC_RUN_LOG([: m4_ifval($1,$1,FLAGS) does contain $VAR])
+ else AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"])
+ m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"
+ fi ]) ;;
+esac
+AS_VAR_POPDEF([VAR])dnl
+AS_VAR_POPDEF([FLAGS])dnl
+])
+
+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 delimimiter. A non-option comment can be given after "%%" marks
+dnl which will be shown but not added to the respective C/CXXFLAGS.
--- /dev/null
+# ===========================================================================
+# http://www.nongnu.org/autoconf-archive/ax_check_compiler_flags.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_CHECK_COMPILER_FLAGS(FLAGS, [ACTION-SUCCESS], [ACTION-FAILURE])
+#
+# DESCRIPTION
+#
+# Check whether the given compiler FLAGS work with the current language's
+# compiler, or whether they give an error. (Warnings, however, are
+# ignored.)
+#
+# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
+# success/failure.
+#
+# LICENSE
+#
+# Copyright (c) 2009 Steven G. Johnson <stevenj@alum.mit.edu>
+# Copyright (c) 2009 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.
+
+AC_DEFUN([AX_CHECK_COMPILER_FLAGS],
+[AC_PREREQ(2.59) dnl for _AC_LANG_PREFIX
+AC_MSG_CHECKING([whether _AC_LANG compiler accepts $1])
+dnl Some hackery here since AC_CACHE_VAL can't handle a non-literal varname:
+AS_LITERAL_IF([$1],
+ [AC_CACHE_VAL(AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_[$1]), [
+ ax_save_FLAGS=$[]_AC_LANG_PREFIX[]FLAGS
+ _AC_LANG_PREFIX[]FLAGS="$1"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+ AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_[$1])=yes,
+ AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_[$1])=no)
+ _AC_LANG_PREFIX[]FLAGS=$ax_save_FLAGS])],
+ [ax_save_FLAGS=$[]_AC_LANG_PREFIX[]FLAGS
+ _AC_LANG_PREFIX[]FLAGS="$1"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+ eval AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_[$1])=yes,
+ eval AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_[$1])=no)
+ _AC_LANG_PREFIX[]FLAGS=$ax_save_FLAGS])
+eval ax_check_compiler_flags=$AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_[$1])
+AC_MSG_RESULT($ax_check_compiler_flags)
+if test "x$ax_check_compiler_flags" = xyes; then
+ m4_default([$2], :)
+else
+ m4_default([$3], :)
+fi
+])dnl AX_CHECK_COMPILER_FLAGS
--- /dev/null
+# ===========================================================================
+# http://www.nongnu.org/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.
+
+AC_DEFUN([AX_COMPILER_VENDOR],
+[
+AC_CACHE_CHECK([for _AC_LANG compiler vendor], ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor,
+ [ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor=unknown
+ # note: don't check for gcc first since some other compilers define __GNUC__
+ for ventest in intel:__ICC,__ECC,__INTEL_COMPILER ibm:__xlc__,__xlC__,__IBMC__,__IBMCPP__ pathscale:__PATHCC__,__PATHSCALE__ 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__ metrowerks:__MWERKS__ sgi:__sgi,sgi microsoft:_MSC_VER watcom:__WATCOMC__ portland:__PGI; do
+ vencpp="defined("`echo $ventest | cut -d: -f2 | sed 's/,/) || defined(/g'`")"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[
+#if !($vencpp)
+ thisisanerror;
+#endif
+])], [ax_cv_]_AC_LANG_ABBREV[_compiler_vendor=`echo $ventest | cut -d: -f1`; break])
+ done
+ ])
+])
--- /dev/null
+# ===========================================================================
+# http://www.nongnu.org/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 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_COMPILER_FLAGS, 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
+#
+# 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.
+
+AC_DEFUN([AX_GCC_ARCHFLAG],
+[AC_REQUIRE([AC_PROG_CC])
+AC_REQUIRE([AC_CANONICAL_HOST])
+
+AC_ARG_WITH(gcc-arch, [AC_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, in part from x86info-1.7 by D. Jones
+ 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 ;;
+ *6[[3456]]?:*:*:*) ax_gcc_arch="pentium2 pentiumpro" ;;
+ *6a?:*[[01]]:*:*) ax_gcc_arch="pentium2 pentiumpro" ;;
+ *6a?:*[[234]]:*:*) ax_gcc_arch="pentium3 pentiumpro" ;;
+ *6[[9d]]?:*:*:*) ax_gcc_arch="pentium-m pentium3 pentiumpro" ;;
+ *6[[78b]]?:*:*:*) ax_gcc_arch="pentium3 pentiumpro" ;;
+ *6??:*:*:*) ax_gcc_arch=pentiumpro ;;
+ *f3[[347]]:*:*:*|*f4[1347]:*:*:*)
+ case $host_cpu in
+ x86_64*) ax_gcc_arch="nocona pentium4 pentiumpro" ;;
+ *) ax_gcc_arch="prescott pentium4 pentiumpro" ;;
+ esac ;;
+ *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 ;;
+ *f[[4cef8b]]?:*:*:*) ax_gcc_arch="athlon64 k8" ;;
+ *f5?:*:*:*) ax_gcc_arch="opteron k8" ;;
+ *f7?:*:*:*) ax_gcc_arch="athlon-fx opteron k8" ;;
+ *f??:*:*:*) ax_gcc_arch="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 $flags; do
+ AX_CHECK_COMPILER_FLAGS($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
+])
--- /dev/null
+# ===========================================================================
+# http://www.nongnu.org/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.
+
+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])
+])
projects / platform / upstream / isl.git / commitdiff