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Commit 19f313e9 authored by aidan's avatar aidan
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Removed some unneccesary files

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# dummy
# dummy
# ===========================================================================
# http://autoconf-archive.cryp.to/acx_mpi.html
# ===========================================================================
#
# SYNOPSIS
#
# ACX_MPI([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
#
# DESCRIPTION
#
# This macro tries to find out how to compile programs that use MPI
# (Message Passing Interface), a standard API for parallel process
# communication (see http://www-unix.mcs.anl.gov/mpi/)
#
# On success, it sets the MPICC, MPICXX, MPIF77, or MPIFC output variable
# to the name of the MPI compiler, depending upon the current language.
# (This may just be $CC/$CXX/$F77/$FC, but is more often something like
# mpicc/mpiCC/mpif77/mpif90.) It also sets MPILIBS to any libraries that
# are needed for linking MPI (e.g. -lmpi or -lfmpi, if a special
# MPICC/MPICXX/MPIF77/MPIFC was not found).
#
# If you want to compile everything with MPI, you should set:
#
# CC="MPICC" #OR# CXX="MPICXX" #OR# F77="MPIF77" #OR# FC="MPIFC"
# LIBS="$MPILIBS $LIBS"
#
# NOTE: The above assumes that you will use $CC (or whatever) for linking
# as well as for compiling. (This is the default for automake and most
# Makefiles.)
#
# The user can force a particular library/compiler by setting the
# MPICC/MPICXX/MPIF77/MPIFC and/or MPILIBS environment variables.
#
# ACTION-IF-FOUND is a list of shell commands to run if an MPI library is
# found, and ACTION-IF-NOT-FOUND is a list of commands to run if it is not
# found. If ACTION-IF-FOUND is not specified, the default action will
# define HAVE_MPI.
#
# LICENSE
#
# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
# Copyright (c) 2008 Julian C. Cummings <cummings@cacr.caltech.edu>
#
# 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([ACX_MPI], [
AC_PREREQ(2.50) dnl for AC_LANG_CASE
AC_LANG_CASE([C], [
AC_REQUIRE([AC_PROG_CC])
AC_ARG_VAR(MPICC,[MPI C compiler command])
AC_CHECK_PROGS(MPICC, mpicc hcc mpxlc_r mpxlc mpcc cmpicc, $CC)
acx_mpi_save_CC="$CC"
CC="$MPICC"
AC_SUBST(MPICC)
],
[C++], [
AC_REQUIRE([AC_PROG_CXX])
AC_ARG_VAR(MPICXX,[MPI C++ compiler command])
AC_CHECK_PROGS(MPICXX, mpic++ mpicxx mpiCC hcp mpxlC_r mpxlC mpCC cmpic++, $CXX)
acx_mpi_save_CXX="$CXX"
CXX="$MPICXX"
AC_SUBST(MPICXX)
],
[Fortran 77], [
AC_REQUIRE([AC_PROG_F77])
AC_ARG_VAR(MPIF77,[MPI Fortran 77 compiler command])
AC_CHECK_PROGS(MPIF77, mpif77 hf77 mpxlf_r mpxlf mpf77 cmpifc, $F77)
acx_mpi_save_F77="$F77"
F77="$MPIF77"
AC_SUBST(MPIF77)
],
[Fortran], [
AC_REQUIRE([AC_PROG_FC])
AC_ARG_VAR(MPIFC,[MPI Fortran compiler command])
AC_CHECK_PROGS(MPIFC, mpif90 mpxlf95_r mpxlf90_r mpxlf95 mpxlf90 mpf90 cmpif90c, $FC)
acx_mpi_save_FC="$FC"
FC="$MPIFC"
AC_SUBST(MPIFC)
])
if test x = x"$MPILIBS"; then
AC_LANG_CASE([C], [AC_CHECK_FUNC(MPI_Init, [MPILIBS=" "])],
[C++], [AC_CHECK_FUNC(MPI_Init, [MPILIBS=" "])],
[Fortran 77], [AC_MSG_CHECKING([for MPI_Init])
AC_LINK_IFELSE([AC_LANG_PROGRAM([],[ call MPI_Init])],[MPILIBS=" "
AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)])],
[Fortran], [AC_MSG_CHECKING([for MPI_Init])
AC_LINK_IFELSE([AC_LANG_PROGRAM([],[ call MPI_Init])],[MPILIBS=" "
AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)])])
fi
AC_LANG_CASE([Fortran 77], [
if test x = x"$MPILIBS"; then
AC_CHECK_LIB(fmpi, MPI_Init, [MPILIBS="-lfmpi"])
fi
if test x = x"$MPILIBS"; then
AC_CHECK_LIB(fmpich, MPI_Init, [MPILIBS="-lfmpich"])
fi
],
[Fortran], [
if test x = x"$MPILIBS"; then
AC_CHECK_LIB(fmpi, MPI_Init, [MPILIBS="-lfmpi"])
fi
if test x = x"$MPILIBS"; then
AC_CHECK_LIB(mpichf90, MPI_Init, [MPILIBS="-lmpichf90"])
fi
])
if test x = x"$MPILIBS"; then
AC_CHECK_LIB(mpi, MPI_Init, [MPILIBS="-lmpi"])
fi
if test x = x"$MPILIBS"; then
AC_CHECK_LIB(mpich, MPI_Init, [MPILIBS="-lmpich"])
fi
dnl We have to use AC_TRY_COMPILE and not AC_CHECK_HEADER because the
dnl latter uses $CPP, not $CC (which may be mpicc).
AC_LANG_CASE([C], [if test x != x"$MPILIBS"; then
AC_MSG_CHECKING([for mpi.h])
AC_TRY_COMPILE([#include <mpi.h>],[],[AC_MSG_RESULT(yes)], [MPILIBS=""
AC_MSG_RESULT(no)])
fi],
[C++], [if test x != x"$MPILIBS"; then
AC_MSG_CHECKING([for mpi.h])
AC_TRY_COMPILE([#include <mpi.h>],[],[AC_MSG_RESULT(yes)], [MPILIBS=""
AC_MSG_RESULT(no)])
fi],
[Fortran 77], [if test x != x"$MPILIBS"; then
AC_MSG_CHECKING([for mpif.h])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[ include 'mpif.h'])],[AC_MSG_RESULT(yes)], [MPILIBS=""
AC_MSG_RESULT(no)])
fi],
[Fortran], [if test x != x"$MPILIBS"; then
AC_MSG_CHECKING([for mpif.h])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[ include 'mpif.h'])],[AC_MSG_RESULT(yes)], [MPILIBS=""
AC_MSG_RESULT(no)])
fi])
AC_LANG_CASE([C], [CC="$acx_mpi_save_CC"],
[C++], [CXX="$acx_mpi_save_CXX"],
[Fortran 77], [F77="$acx_mpi_save_F77"],
[Fortran], [FC="$acx_mpi_save_FC"])
AC_SUBST(MPILIBS)
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test x = x"$MPILIBS"; then
$2
:
else
ifelse([$1],,[AC_DEFINE(HAVE_MPI,1,[Define if you have the MPI library.])],[$1])
:
fi
])dnl ACX_MPI
# ===========================================================================
# http://autoconf-archive.cryp.to/acx_pthread.html
# ===========================================================================
#
# SYNOPSIS
#
# ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
#
# DESCRIPTION
#
# This macro figures out how to build C programs using POSIX threads. It
# sets the PTHREAD_LIBS output variable to the threads library and linker
# flags, and the PTHREAD_CFLAGS output variable to any special C compiler
# flags that are needed. (The user can also force certain compiler
# flags/libs to be tested by setting these environment variables.)
#
# Also sets PTHREAD_CC to any special C compiler that is needed for
# multi-threaded programs (defaults to the value of CC otherwise). (This
# is necessary on AIX to use the special cc_r compiler alias.)
#
# NOTE: You are assumed to not only compile your program with these flags,
# but also link it with them as well. e.g. you should link with
# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
#
# If you are only building threads programs, you may wish to use these
# variables in your default LIBS, CFLAGS, and CC:
#
# LIBS="$PTHREAD_LIBS $LIBS"
# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# CC="$PTHREAD_CC"
#
# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
# has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to that name
# (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
#
# ACTION-IF-FOUND is a list of shell commands to run if a threads library
# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
# is not found. If ACTION-IF-FOUND is not specified, the default action
# will define HAVE_PTHREAD.
#
# Please let the authors know if this macro fails on any platform, or if
# you have any other suggestions or comments. This macro was based on work
# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help
# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by
# Alejandro Forero Cuervo to the autoconf macro repository. We are also
# grateful for the helpful feedback of numerous users.
#
# LICENSE
#
# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
#
# 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([ACX_PTHREAD], [
AC_REQUIRE([AC_CANONICAL_HOST])
AC_LANG_SAVE
AC_LANG_C
acx_pthread_ok=no
# We used to check for pthread.h first, but this fails if pthread.h
# requires special compiler flags (e.g. on True64 or Sequent).
# It gets checked for in the link test anyway.
# First of all, check if the user has set any of the PTHREAD_LIBS,
# etcetera environment variables, and if threads linking works using
# them:
if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
AC_MSG_RESULT($acx_pthread_ok)
if test x"$acx_pthread_ok" = xno; then
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
fi
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
fi
# We must check for the threads library under a number of different
# names; the ordering is very important because some systems
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
# libraries is broken (non-POSIX).
# Create a list of thread flags to try. Items starting with a "-" are
# C compiler flags, and other items are library names, except for "none"
# which indicates that we try without any flags at all, and "pthread-config"
# which is a program returning the flags for the Pth emulation library.
acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
# The ordering *is* (sometimes) important. Some notes on the
# individual items follow:
# pthreads: AIX (must check this before -lpthread)
# none: in case threads are in libc; should be tried before -Kthread and
# other compiler flags to prevent continual compiler warnings
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
# -pthreads: Solaris/gcc
# -mthreads: Mingw32/gcc, Lynx/gcc
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
# doesn't hurt to check since this sometimes defines pthreads too;
# also defines -D_REENTRANT)
# ... -mt is also the pthreads flag for HP/aCC
# pthread: Linux, etcetera
# --thread-safe: KAI C++
# pthread-config: use pthread-config program (for GNU Pth library)
case "${host_cpu}-${host_os}" in
*solaris*)
# On Solaris (at least, for some versions), libc contains stubbed
# (non-functional) versions of the pthreads routines, so link-based
# tests will erroneously succeed. (We need to link with -pthreads/-mt/
# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
# a function called by this macro, so we could check for that, but
# who knows whether they'll stub that too in a future libc.) So,
# we'll just look for -pthreads and -lpthread first:
acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
;;
esac
if test x"$acx_pthread_ok" = xno; then
for flag in $acx_pthread_flags; do
case $flag in
none)
AC_MSG_CHECKING([whether pthreads work without any flags])
;;
-*)
AC_MSG_CHECKING([whether pthreads work with $flag])
PTHREAD_CFLAGS="$flag"
;;
pthread-config)
AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
if test x"$acx_pthread_config" = xno; then continue; fi
PTHREAD_CFLAGS="`pthread-config --cflags`"
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
;;
*)
AC_MSG_CHECKING([for the pthreads library -l$flag])
PTHREAD_LIBS="-l$flag"
;;
esac
save_LIBS="$LIBS"
save_CFLAGS="$CFLAGS"
LIBS="$PTHREAD_LIBS $LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# Check for various functions. We must include pthread.h,
# since some functions may be macros. (On the Sequent, we
# need a special flag -Kthread to make this header compile.)
# We check for pthread_join because it is in -lpthread on IRIX
# while pthread_create is in libc. We check for pthread_attr_init
# due to DEC craziness with -lpthreads. We check for
# pthread_cleanup_push because it is one of the few pthread
# functions on Solaris that doesn't have a non-functional libc stub.
# We try pthread_create on general principles.
AC_TRY_LINK([#include <pthread.h>],
[pthread_t th; pthread_join(th, 0);
pthread_attr_init(0); pthread_cleanup_push(0, 0);
pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
[acx_pthread_ok=yes])
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
AC_MSG_RESULT($acx_pthread_ok)
if test "x$acx_pthread_ok" = xyes; then
break;
fi
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
done
fi
# Various other checks:
if test "x$acx_pthread_ok" = xyes; then
save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
AC_MSG_CHECKING([for joinable pthread attribute])
attr_name=unknown
for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
[attr_name=$attr; break])
done
AC_MSG_RESULT($attr_name)
if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
[Define to necessary symbol if this constant
uses a non-standard name on your system.])
fi
AC_MSG_CHECKING([if more special flags are required for pthreads])
flag=no
case "${host_cpu}-${host_os}" in
*-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
*solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
esac
AC_MSG_RESULT(${flag})
if test "x$flag" != xno; then
PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
fi
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
# More AIX lossage: must compile with xlc_r or cc_r
if test x"$GCC" != xyes; then
AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
else
PTHREAD_CC=$CC
fi
else
PTHREAD_CC="$CC"
fi
AC_SUBST(PTHREAD_LIBS)
AC_SUBST(PTHREAD_CFLAGS)
AC_SUBST(PTHREAD_CC)
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test x"$acx_pthread_ok" = xyes; then
ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
:
else
acx_pthread_ok=no
$2
fi
AC_LANG_RESTORE
])dnl ACX_PTHREAD
# ===========================================================================
# http://autoconf-archive.cryp.to/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
])
# ===========================================================================
# 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
# ===========================================================================
# http://autoconf-archive.cryp.to/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
This diff is collapsed.
# ===========================================================================
# http://autoconf-archive.cryp.to/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
])
])
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