define([sc_mmm_version],[2.3.1])
define([sc_buildid],[])
define([sc_so_version],[8:0:1])

dnl Process this file with autoconf to produce a configure script.
define([AC_CACHE_LOAD], )dnl for debugging configure.in
define([AC_CACHE_SAVE], )dnl for debugging configure.in
AC_INIT(src/lib/util/ref/ref.h)
AC_PREREQ(2.55)
AC_CONFIG_HEADER(src/lib/scconfig.h)
AC_CONFIG_AUX_DIR(bin)

AC_CANONICAL_SYSTEM

AC_DEFINE_UNQUOTED(HOST_ARCH, "$host")
AC_DEFINE_UNQUOTED(TARGET_ARCH, "$target")

define([default_prefix_dash],ifelse(sc_buildid, ,[],[-]))
define([default_prefix],builtin(format,"/usr/local/mpqc/%s%s%s",
                        sc_mmm_version,default_prefix_dash,sc_buildid))

SC_MMM_VERSION=sc_mmm_version

SC_SO_VERSION=sc_so_version
AC_SUBST(SC_SO_VERSION)

changequote(<<, >>)dnl
SC_MAJOR_VERSION=`echo $SC_MMM_VERSION|sed 's/\([0-9]*\)\.[0-9]*\.[0-9]*/\1/'`
SC_MINOR_VERSION=`echo $SC_MMM_VERSION|sed 's/[0-9]*\.\([0-9]*\)\.[0-9]*/\1/'`
SC_MICRO_VERSION=`echo $SC_MMM_VERSION|sed 's/[0-9]*\.[0-9]*\.\([0-9]*\)/\1/'`
changequote([, ])dnl
AC_DEFINE_UNQUOTED(SC_MAJOR_VERSION,$SC_MAJOR_VERSION)
AC_DEFINE_UNQUOTED(SC_MINOR_VERSION,$SC_MINOR_VERSION)
AC_DEFINE_UNQUOTED(SC_MICRO_VERSION,$SC_MICRO_VERSION)

EXCLUDED_DIRS=

dnl --------- Features ---------

AC_ARG_ENABLE(debug,
[  --enable-debug          Compile with debugging options],
[
case $enableval in
  yes)
    DEBUG=yes
  ;;
  no)
    DEBUG=no
  ;;
  opt)
    DEBUG=opt
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --enable-debug ($enableval)])
  ;;
esac
],[
    DEBUG=no
]
)

AC_ARG_ENABLE(strict-arch,
[  --enable-strict-arch    Code might only work on target cpu type],
[
case $enableval in
  yes)
    STRICT_ARCH=yes
  ;;
  no)
    STRICT_ARCH=no
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --enable-strict-arch ($enableval)])
  ;;
esac
],[
    STRICT_ARCH=no
]
)

enableproduction=no
AC_ARG_ENABLE(production,
[  --enable-production     Prepare for a production install.],
[
case $enableval in
  yes)
    enableproduction=yes
  ;;
  no)
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --enable-production ($enableval)])
  ;;
esac
])

AC_ARG_ENABLE(sysv-ipc,
[  --disable-sysv-ipc      Disable use of SysV IPC.],
[
case $enableval in
  yes)
    SYSVIPC=yes
  ;;
  no)
    SYSVIPC=no
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --enable-sysv-ipc ($enableval)])
  ;;
esac
],[
    SYSVIPC=yes
]
)

AC_ARG_ENABLE(parallel,
[  --disable-parallel      Compile for serial execution.],
[
case $enableval in
  yes)
    PARALLEL=yes
  ;;
  no)
    PARALLEL=no
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --enable-parallel ($enableval)])
  ;;
esac
],[
    PARALLEL=yes
]
)

AC_ARG_ENABLE(always-use-mpi,
[  --enable-always-use-mpi Causes MPI_Init to always be called from main],
[
case $enableval in
  yes)
    ALWAYS_USE_MPI=yes
  ;;
  no)
    ALWAYS_USE_MPI=no
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --enable-always-use-mpi ($enableval)])
  ;;
esac
],[
    ALWAYS_USE_MPI=no
]
)

DEFAULT_PARALLEL=none
AC_ARG_WITH(default-parallel,
[  --with-default-parallel Default parallism model: none, mpi, armcimpi or mtmpi],
DEFAULT_PARALLEL=$withval
)
if test $DEFAULT_PARALLEL = mpi; then
  AC_DEFINE(DEFAULT_MPI)
elif test $DEFAULT_PARALLEL = mtmpi; then
  AC_DEFINE(DEFAULT_MPI)
  AC_DEFINE(DEFAULT_MTMPI)
elif test $DEFAULT_PARALLEL = armcimpi; then
  AC_DEFINE(DEFAULT_MPI)
  AC_DEFINE(DEFAULT_ARMCI)
fi

SC_MPI_THREAD_LEVEL=MPI_THREAD_MULTIPLE
AC_ARG_WITH(mpi-thread,
[  --with-mpi-thread       Thread level for MPI (multiple,serialized,funneled,single)],
[
   case $withval in
   multiple)
        SC_MPI_THREAD_LEVEL=MPI_THREAD_MULTIPLE
   ;;
   serialized)
        SC_MPI_THREAD_LEVEL=MPI_THREAD_SERIALIZED
   ;;
   funneled)
        SC_MPI_THREAD_LEVEL=MPI_THREAD_FUNNELED
   ;;
   single)
        SC_MPI_THREAD_LEVEL=MPI_THREAD_SINGLE
   ;;
   *)
     AC_MSG_ERROR([Invalid value for --with-mpi-thread ($withval)])
   ;;
   esac
]
)
AC_DEFINE_UNQUOTED(SC_MPI_THREAD_LEVEL,$SC_MPI_THREAD_LEVEL)

AC_ARG_ENABLE(long-long,
[  --disable-long-long     Disable use of long long.],
[
case $enableval in
  yes)
    LONGLONG=yes
  ;;
  no)
    LONGLONG=no
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --enable-long-long ($enableval)])
  ;;
esac
],[
    LONGLONG=yes
]
)

AC_ARG_ENABLE(threads,
[  --enable-threads        Compile allowing use of threads, if possible.],
[
case $enableval in
  yes)
    THREADS=yes
  ;;
  no)
    THREADS=no
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --enable-threads ($enableval)])
  ;;
esac
],[
    THREADS=yes
]
)

AC_ARG_ENABLE(ref-debug,
[  --enable-ref-debug      Check for reference count overwrites/overflows/etc],
[
case $enableval in
  yes)
  ;;
  no)
    AC_DEFINE(REF_OPTIMIZE)
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --enable-ref-debug ($enableval)])
  ;;
esac
],[
  if test $DEBUG = no -o $DEBUG = opt; then
    AC_DEFINE(REF_OPTIMIZE)
  fi
]
)

AC_ARG_ENABLE(cross-compile,
[  --enable-cross-compile  Rather than checking, assume cross compilation.],
[
case $enableval in
  yes)
    cross_compiling=yes
  ;;
  no)
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --enable-cross-compile ($enableval)])
  ;;
esac
])

DOXYGEN_MAN=YES
AC_ARG_ENABLE(doxygen-man,
[  --disable-doxygen-man   Disable doxygen man pages.],
[
case $enableval in
  yes)
  ;;
  no)
    DOXYGEN_MAN=NO
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --(dis|en)able-doxygen-man ($enableval)])
  ;;
esac
]
)
AC_SUBST(DOXYGEN_MAN)

AC_ARG_ENABLE(sourceforge,
[  --enable-sourceforge    Enable SourceForge web page generation],
[
case $enableval in
  yes)
    FOOTER_HTML=sf_footer.html
  ;;
  no)
    FOOTER_HTML=footer.html
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --enable-sourceforge ($enableval)])
  ;;
esac
],[
    FOOTER_HTML=footer.html
]
)
AC_SUBST(FOOTER_HTML)

AC_ARG_ENABLE(components,
[  --enable-components     Enable CCA components],
[
case $enableval in
  yes)
    components=yes
  ;;
  no)
    components=no
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --enable-components ($enableval)])
  ;;
esac
],[
    components=no
]
)
ENABLECCA=$components
AC_SUBST(ENABLECCA)

BUILDID="sc_buildid"
AC_ARG_WITH(build-id,
[  --with-build-id         Gives an identifier for the build.],
BUILDID=$withval
)
AC_SUBST(BUILDID)
AC_DEFINE_UNQUOTED(SC_BUILDID,"$BUILDID")

DEFAULT_SC_MEMORY=32000000
AC_ARG_WITH(default-memory,
[  --with-default-memory   Gives the default memory allocation.],
DEFAULT_SC_MEMORY=$withval
)
AC_DEFINE_UNQUOTED(DEFAULT_SC_MEMORY,$DEFAULT_SC_MEMORY)

if test "$BUILDID"; then
  SC_VERSION="$SC_MMM_VERSION-$BUILDID"
else
  SC_VERSION="$SC_MMM_VERSION"
fi

AC_DEFINE_UNQUOTED(SC_VERSION, "$SC_VERSION")
AC_SUBST(SC_VERSION)

ac_default_prefix="/usr/local/mpqc/$SC_VERSION"

AC_ARG_WITH(cc,
[  --with-cc               Gives the name of the C compiler to use.],
CC=$withval
)

AC_ARG_WITH(cxx,
[  --with-cxx              Gives the name of the C++ compiler to use.],
CXX=$withval
)

AC_ARG_WITH(f77,
[  --with-f77              Gives the name of the FORTRAN 77 compiler to use.],
F77=$withval
)

AC_ARG_WITH(cxx-optflags,
[  --with-cxx-optflags     Optimization flags to use with the C++ compiler.],
GIVEN_CXXOPTIONS_OPT=$withval
)

AC_ARG_WITH(cc-optflags,
[  --with-cc-optflags      Optimization flags to use with the C compiler.],
GIVEN_COPTIONS_OPT=$withval
)

DOT=yes
AC_ARG_WITH(dot,
[  --with-dot              Gives the path to the dot graph generator.],
DOT=$withval
)

AC_ARG_WITH(ranlib,
[  --with-ranlib           Gives the name of the ranlib program.],
RANLIB=$withval
)

AC_ARG_WITH(ar,
[  --with-ar               Names the archive creator.],
AR=$withval
)

ARFLAGS=r
AC_ARG_WITH(ar-flags,
[  --with-ar-flags         Flags for the the archive creator.],
ARFLAGS=$withval
)
AC_SUBST(ARFLAGS)

AC_ARG_WITH(ld,
[  --with-ld               Names the object linker.],
LD=$withval
)

changequote(<<, >>)dnl
LAUNCH="%MPQC% [-o %OUTPUT%] %INPUT%"
changequote([, ])dnl
AC_ARG_WITH(launch,
[  --with-launch           The mpqcrun script launch string.],
LAUNCH=$withval
)
AC_SUBST(LAUNCH)

changequote(<<, >>)dnl
CCALAUNCH="%CCAFE% --ccafe-rc %INPUT% --ccafe-remap-stdio --ccafe-outputdir %OUTPUT%";
changequote([, ])dnl
AC_ARG_WITH(cca-launch,
[  --with-cca-launch        The ccarun script launch string.],
CCALAUNCH=$withval
)
AC_SUBST(CCALAUNCH)

if test $prefix = $ac_default_prefix -o $prefix = NONE; then
  scdatadir=$datadir
else
  scdatadir=$datadir/mpqc/$SC_VERSION
fi
AC_ARG_WITH(sc-datadir,
[  --with-sc-datadir       Specifies arch-independent install subdir.],
scdatadir=$withval
)
AC_SUBST(scdatadir)

AC_ARG_WITH(include,
[  --with-include          Specifies include directories (-Idir1 -Idir2).],
EXTRAINCLUDE=$withval
CPPFLAGS=$withval
echo Using extra include directories: $withval
)

template_instantiation=none
AC_ARG_WITH(template,
[  --with-template         Specifies template instantation model.],
template_instantiation=$withval
echo Using extra include directories: $withval
)

scincludedir=$includedir
AC_ARG_WITH(sc-includedir,
[  --with-sc-includedir    Specifies include file install subdir.],
scincludedir=$withval
)
AC_SUBST(scincludedir)

AC_ARG_WITH(libs,
[  --with-libs             Specifies libraries (-llib1 -llib2).],
LIBS=$withval
echo Using extra libraries: $withval
)

XTRA_FLIBS=
AC_ARG_WITH(extra-flibs,
[  --with-extra-flibs      Specifies libs needing a F77 runtime (-llib1 -llib2).],
XTRA_FLIBS=$withval
echo Using extra FORTRAN libraries: $withval
)

have_flibs=no
AC_ARG_WITH(flibs,
[  --with-flibs            Specifies the F77 runtime (by default, will guess).],
FLIBS=$withval
have_flibs=yes
echo Using FORTRAN runtime libraries: $withval
)

LDFLAGS=
LIBDIRS=
AC_ARG_WITH(libdirs,
[  --with-libdirs          Specifies library directories (-Ldir1 -Ldir2).],
LIBDIRS=$withval
LDFLAGS=$withval
echo Using extra library directories: $withval
)

AC_ARG_WITH(cca-chem-config,
[  --with-cca-chem-config  Specifies full pathname of cca-chem-config script.],
[
  CCA_CHEM_CONFIG=$withval
  echo Using cca-chem-config: $withval
],[
  if test "$components" == "yes"; then
    AC_PATH_PROG(CCA_CHEM_CONFIG,cca-chem-config,"not-found")
  fi
]
)

dnl --------- Want absolute path for srcdir, not relative. ---------

if test X$ac_srcdir_defaulted = Xyes; then
  case $srcdir in
    .|..|./*|../*)
      srcdir=`(cd $srcdir; pwd)`
      #srcdir=`(cd $srcdir; echo $PWD)`
      ;;
  esac
fi

dnl --------- Get the path to the compile dir. ---------

compiledir=`pwd`
AC_SUBST(compiledir)

dnl --------- Need actual paths for substitution outside of a makefile. ---------

if test $exec_prefix = "NONE"; then
  if test $prefix = "NONE"; then
    scbindir=$ac_default_prefix/bin;
    sclibdir=$ac_default_prefix/lib;
  else
    scbindir=$prefix/bin;
    sclibdir=$prefix/lib;
  fi
else
  scbindir=$exec_prefix/bin
  sclibdir=$exec_prefix/lib
fi
AC_SUBST(scbindir)
AC_SUBST(sclibdir)

dnl --------- Checks for programs. ---------
AC_PROG_LN_S
AC_PROG_INSTALL
AC_PROG_RANLIB
AC_PROG_CC
dnl ac_prog_cxx's order isn't what i need
AC_CHECK_PROGS(CXX, g++ c++ gcc CC cxx xlC_r, gcc)
dnl sees if CXX is a GNU compiler
AC_PROG_CXX
if test ! "$F77" = no ; then
  AC_PROG_F77
  if test "X$have_flibs" = Xno; then
    AC_F77_LIBRARY_LDFLAGS
  fi
fi
FLIBS="$XTRA_FLIBS $FLIBS"
AC_PROG_CPP
AC_PROG_CXXCPP
AC_CHECK_PROG(AR,ar,ar)
AC_CHECK_PROG(PERL,perl,perl)
AC_CHECK_PROG(WISH,wish,/usr/bin/wish)

dnl The lack of certain tools is a show stopper

changequote(<<, >>)dnl

if [ X$PERL = X ]; then
  echo "Could not find the program perl.  It can be obtained at"
  echo "ftp://prep.ai.mit.edu/pub/gnu"
  exit 1
fi

changequote([, ])dnl

dnl --------- Check for the graph generator used by doxygen

DOT_PATH=""
if test X$DOT = Xno; then
  HAVE_DOT=NO
elif test X$DOT = Xyes; then
  AC_CHECK_PROG(HAVE_DOT,dot,YES,NO)
else
  HAVE_DOT=YES
  DOT_PATH=$DOT
fi
AC_SUBST(DOT_PATH)
AC_SUBST(HAVE_DOT)

dnl -------- Checks for cross compiling. ----------

# obsolete starting at autoconf 2.12
#if test X$cross_compiling != Xyes; then
#AC_C_CROSS
#fi

#if test X$cross_compiling = Xyes -a X$target = X$host; then
#  AC_MSG_ERROR([Cross compiling, but target is host (use --host).])
#fi

dnl -------- Checks for compiler/linker options. ----------

# options needed only for optimization
COPTIONS_OPT=-O
# options needed only for debugging
COPTIONS_DBG=-g
# options that are always needed
COPTIONS_MISC=

# options needed only for optimization
CXXOPTIONS_OPT=-O
# options needed only for debugging
CXXOPTIONS_DBG=-g
# options that are always needed
CXXOPTIONS_MISC=

OBJSUF=o
LIBSUF=a

dnl -- check how dependency information is built --

# The GNU compilers work with:
CCDEPENDSUF=none
CXXDEPENDSUF=none
CCDEPENDFLAGS=-M
CXXDEPENDFLAGS=-M

/bin/rm -f depcheck.u depcheck.c depcheck.o

# Check for an IBM visual age C compiler
echo "#include <stdio.h>" > depcheck.c
$CC $CPPFLAGS $CFLAGS -M depcheck.c > /dev/null 2>&1
if test -f depcheck.u; then
  CCDEPENDSUF=u
fi
/bin/rm -f depcheck.u depcheck.c depcheck.o

# Check for an IBM visual age C++ compiler
echo "#include <iostream>" > depcheck.cc
$CXX $CPPFLAGS $CXXFLAGS -M -E depcheck.cc > /dev/null 2>&1
if test -f depcheck.u; then
  CXXDEPENDSUF=u
  CXXDEPENDFLAGS="-M -E"
fi
/bin/rm -f depcheck.u depcheck.c depcheck.o

dnl -- special misc options --

AC_MSG_CHECKING([for miscellaneous flags])
case $target in
  *-cray-unicos*)
    if test ! X$GXX = Xyes; then
      CXXOPTIONS_MISC="$CXXOPTIONS_MISC -h new_for_init"
    fi
    AC_MSG_RESULT(cray)
  ;;
  *)
    AC_MSG_RESULT(none)
  ;;
esac

dnl -- special optimization options --

AC_MSG_CHECKING([for special optimization options])
case $target in
  rs6000-ibm-aix3.2.* | rs6000-ibm-aix4.* | powerpc-ibm-aix4.* | powerpc-ibm-aix5.*)
    if test X$GCC != Xyes; then
      COPTIONS_OPT="-O -qnolm"
    fi
    if test X$GXX != Xyes; then
      CXXOPTIONS_OPT="-O -qnolm -qrtti"
    fi
    AC_MSG_RESULT("rs6000 or powerpc")
  ;;
  alphaev6-*)
    if test X$GCC = Xyes; then
      COPTIONS_OPT="-O3 -mcpu=ev6"
    else
      COPTIONS_OPT="-O5 -arch ev6"
    fi
    if test X$GXX = Xyes; then
      CXXOPTIONS_OPT="-O3 -mcpu=ev6"
    else
      CXXOPTIONS_OPT="-O5 -arch ev6"
    fi
    AC_MSG_RESULT("alphaev6")
  ;;
  alphaev56-*)
    if test X$GCC = Xyes; then
      COPTIONS_OPT="-O3 -mcpu=ev56"
    else
      COPTIONS_OPT="-O5 -arch ev56"
    fi
    if test X$GXX = Xyes; then
      CXXOPTIONS_OPT="-O3 -mcpu=ev56"
    else
      CXXOPTIONS_OPT="-O5 -arch ev56"
    fi
    AC_MSG_RESULT("alphaev56")
  ;;
  mips*-sgi-irix5*)
    if test X$GCC != Xyes; then
      COPTIONS_OPT="-O -Olimit 2000"
    fi
    AC_MSG_RESULT("mips*-sgi-irix5")
  ;;
changequote(<<, >>)dnl
  mips*-sgi-irix6.[01]*)
changequote([, ])dnl
    if test X$GCC != Xyes; then
      COPTIONS_OPT="-O2 -TENV:use_fp \
        -OPT:const_copy_limit=20000:fold_arith_limit=20000:global_limit=20000"
    fi
    if test X$GXX != Xyes; then
      CXXOPTIONS_OPT="-O2 -TENV:use_fp \
        -OPT:const_copy_limit=20000:fold_arith_limit=20000:global_limit=20000"
    fi
    AC_MSG_RESULT("mips*-sgi-irix6.0 or mips*-sgi-irix6.1")
  ;;
  mips*-sgi-irix*)
    if test X$GCC != Xyes; then
      COPTIONS_OPT="-O2 -OPT:Olimit=0"
    fi
    if test X$GXX != Xyes; then
      CXXOPTIONS_OPT="-O2 -OPT:Olimit=0"
    fi
    AC_MSG_RESULT("mips*-sgi-irix")
  ;;
changequote(<<, >>)dnl
  i[56]86-*)
changequote([, ])dnl
    if test X$GCC = Xyes; then
      COPTIONS_OPT="-O2"
    fi
    if test X$GXX = Xyes; then
      CXXOPTIONS_OPT="-O2"
    fi
    AC_MSG_RESULT("i586 or i686")
  ;;
  i860-intel-*)
    if test X$GCC != Xyes; then
      COPTIONS_OPT="-O3 -Knoieee"
    fi
    AC_MSG_RESULT("i860")
  ;;
  *)
    AC_MSG_RESULT("none")
  ;;
esac

dnl -- special architecture options --

case $target_cpu in
     i786)
        opt_target_cpu=pentium4
     ;;
     *)
        opt_target_cpu=$target_cpu
     ;;
esac

if test X$GXX == Xyes; then
  AC_MSG_CHECKING([for C++ cpu tuning flag])
  AC_LANG_SAVE
  AC_LANG_CPLUSPLUS
  CXXFLAGS_SAV=$CXXFLAGS
  CXXFLAGS="-mtune=$opt_target_cpu $CXXFLAGS_SAV"
  AC_COMPILE_IFELSE([int main(){}],cxx_tuneflag="-mtune",cxx_tuneflag="-mcpu")
  CXXFLAGS=$CXXFLAGS_SAV
  AC_LANG_RESTORE
  AC_MSG_RESULT($cxx_tuneflag)
fi

if test X$GCC == Xyes; then
  AC_MSG_CHECKING([for C cpu tuning flag])
  CFLAGS_SAV=$CFLAGS
  CFLAGS="-mtune=$opt_target_cpu $CFLAGS_SAV"
  AC_COMPILE_IFELSE([int main(){}],cc_tuneflag="-mtune",cc_tuneflag="-mcpu")
  CFLAGS=$CFLAGS_SAV
  AC_MSG_RESULT($cc_tuneflag)
fi

AC_MSG_CHECKING([for special architecture options])
case $target in
  *-solaris2*)
  if test X$GCC != Xyes; then
    CCDEPENDFLAGS="-xM"
  fi
  if test X$GXX != Xyes; then
    CXXDEPENDFLAGS="-xM"
  fi
  ;;
  rs6000-ibm-aix* | powerpc-ibm-aix*)
    if test X$GCC != Xyes; then
      LDFLAGS="$LDFLAGS -bmaxdata:0x70000000"
    fi
    AC_MSG_RESULT(rs6000 or powerpc)
  ;;
  i686-intel-cougar*)
    COPTIONS_MISC="$COPTIONS_MISC -mcougar"
    CXXOPTIONS_MISC="$CXXOPTIONS_MISC -mcougar"
    EXTRADEFINES="-D_REENTRANT $EXTRADEFINES"
    if test X$cross_compiling = Xyes; then
      AR=tflop-ar
    fi
    AC_MSG_RESULT(teraflop cougar)
  ;;
changequote(<<, >>)dnl
  i[4567]86-* | pentium-* | pentium4-* | pentiumpro-* | k6-* | athlon-*)
changequote([, ])dnl

    if test X$STRICT_ARCH = Xyes; then
      cxx_cpu_arch_option="-march=$opt_target_cpu"
      cc_cpu_arch_option="-march=$opt_target_cpu"
    else
      cxx_cpu_arch_option="$cxx_tuneflag=$opt_target_cpu"
      cc_cpu_arch_option="$cc_tuneflag=$opt_target_cpu"
    fi
    if test X$GCC = Xyes; then
      COPTIONS_OPT="$COPTIONS_OPT $cc_cpu_arch_option"
    fi
    if test X$GXX = Xyes; then
      CXXOPTIONS_OPT="$CXXOPTIONS_OPT $cxx_cpu_arch_option"
    fi
    AC_MSG_RESULT(IA-32: $cpu_arch_option)
  ;;
  i860-intel-puma*)
    if test X$GCC = Xyes; then
      COPTIONS_MISC="$COPTIONS_MISC -mpuma"
    else
      COPTIONS_MISC="$COPTIONS_MISC -D__PUMAGON__"
      COPTIONS_MISC="$COPTIONS_MISC -L$PARAGON_XDEV/paragon/lib-coff/puma"
      COPTIONS_MISC="$COPTIONS_MISC -YS,$PARAGON_XDEV/paragon/lib-coff/puma"
      COPTIONS_MISC="$COPTIONS_MISC -lpuma -lm -lkmath"
      COPTIONS_MISC="$COPTIONS_MISC $PARAGON_XDEV/paragon/lib-coff/puma/libstubs.o"
    fi
    if test X$GXX = Xyes; then
      CXXOPTIONS_MISC="$CXXOPTIONS_MISC -mpuma"
    fi
    if test X$cross_compiling = Xyes; then
      AR=ar860
    fi
    AC_MSG_RESULT(paragon puma)
  ;;
  i860-intel-sunmos*)
    if test X$GCC = Xyes; then
      COPTIONS_MISC="$COPTIONS_MISC -msunmos"
    else
      COPTIONS_MISC="$COPTIONS_MISC -DSUNMOS -D__PUMAGON__"
      COPTIONS_MISC="$COPTIONS_MISC -L$PARAGON_XDEV/paragon/lib-coff/sunmos"
      COPTIONS_MISC="$COPTIONS_MISC -Wl,-d0x4000000,-k"
      COPTIONS_MISC="$COPTIONS_MISC -YS,$PARAGON_XDEV/paragon/lib-coff/sunmos"
      COPTIONS_MISC="$COPTIONS_MISC -lm -lsunmos -lm"
    fi
    if test X$GXX = Xyes; then
      CXXOPTIONS_MISC="$CXXOPTIONS_MISC -msunmos"
    fi
    if test X$cross_compiling = Xyes; then
      AR=ar860
    fi
    AC_MSG_RESULT(paragon sunmos)
  ;;
  i860-intel-osf*)
    if test X$GCC = Xyes; then
      COPTIONS_MISC="$COPTIONS_MISC -mnx"
    fi
    if test X$GXX = Xyes; then
      CXXOPTIONS_MISC="$CXXOPTIONS_MISC -mnx"
    fi
    if test X$cross_compiling = Xyes; then
      AR=ar860
    fi
    AC_MSG_RESULT(paragon osf)
  ;;
  *)
    AC_MSG_RESULT("none")
  ;;
esac

dnl -- check for overriden optimization options --

if test -n "$GIVEN_COPTIONS_OPT"; then
  COPTIONS_OPT=$GIVEN_COPTIONS_OPT
  AC_MSG_NOTICE("overriding C optimization flags with $COPTIONS_OPT")
fi

if test -n "$GIVEN_CXXOPTIONS_OPT"; then
  CXXOPTIONS_OPT=$GIVEN_CXXOPTIONS_OPT
  AC_MSG_NOTICE("overriding C++ optimization flags with $CXXOPTIONS_OPT")
fi

dnl ----------- check for C++ typename ---------------
dnl This is done before template flags are set to avoid
dnl undefined symbol problems.

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING("for C++ typename keyword")
AC_TRY_LINK([
  class X { public: typedef int t; X(){} };
  template <class T> void f(T i) {typename T::t x;}
],[
  X g;
  f(g);
],[
AC_DEFINE(HAVE_TYPENAME)
AC_MSG_RESULT("yes")
],
AC_MSG_RESULT("no")
);
AC_LANG_RESTORE

dnl  ----------- check for C++ restrict extension ---------------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_LINK(,[double *restrict x=0;],AC_DEFINE(CXX_RESTRICT))
AC_LANG_RESTORE

dnl ---------- Checks for C++ header files. -----------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_CHECK_HEADERS(iostream sstream)
AC_LANG_RESTORE

AC_MSG_CHECKING(iostream name)
if test x$ac_cv_header_iostream = xyes; then
  iostream=iostream
else
  iostream=iostream.h
fi
AC_MSG_RESULT($iostream)

dnl ----------- check for namespace std ---------------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING("for namespace std")
AC_TRY_LINK([
#include <$iostream>
using namespace std;
],[
  ostream &o = cout;
  o << endl;
],[
AC_DEFINE(USING_NAMESPACE_STD)
NAMESPACE_STD=std::
AC_MSG_RESULT("yes")
],
NAMESPACE_STD=
AC_MSG_RESULT("no")
);
AC_LANG_RESTORE

dnl ----------- check for GNU libc++-v3 prerelease bug ---------------

if test X$GXX = Xyes; then
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING("for GNU libc++-v3 prerelease bug")
AC_TRY_LINK([
#include <stdio.h>
#include <$iostream>
],[
],[
AC_MSG_RESULT("no")
],
EXTRADEFINES="$EXTRADEFINES -D_ISOC99_SOURCE=1"
AC_MSG_RESULT("yes")
);
AC_LANG_RESTORE
fi

dnl -- other options --

if test $DEBUG = yes; then
  CFLAGS="$COPTIONS_DBG $COPTIONS_MISC"
  CXXFLAGS="$CXXOPTIONS_DBG $CXXOPTIONS_MISC"
  LDFLAGS="$LDFLAGS -g"
elif test $DEBUG = opt; then
  CFLAGS="$COPTIONS_DBG $COPTIONS_OPT $COPTIONS_MISC"
  CXXFLAGS="$CXXOPTIONS_DBG $CXXOPTIONS_OPT $CXXOPTIONS_MISC"
  LDFLAGS="$LDFLAGS -g"
else
  CFLAGS="$COPTIONS_OPT $COPTIONS_MISC"
  CXXFLAGS="$CXXOPTIONS_OPT $CXXOPTIONS_MISC"
fi

AC_SUBST(EXTRAINCLUDE)

AC_SUBST(CFLAGS)
AC_SUBST(CXXFLAGS)

AC_SUBST(LDFLAGS)
AC_SUBST(LIBDIRS)

AC_SUBST(OBJSUF)
AC_SUBST(LIBSUF)
AC_SUBST(CCDEPENDSUF)
AC_SUBST(CXXDEPENDSUF)
AC_SUBST(CCDEPENDFLAGS)
AC_SUBST(CXXDEPENDFLAGS)

dnl -------- Checks for architecture specific features. --------
dnl (Doesn't work for cross compilation.)
dnl AC_CHECK_SIZEOF(void*)

dnl This version works on more machines without the need to run
dnl a test program.
AC_DEFUN([SC_C_BIGENDIAN],
[AC_CHECK_HEADERS(fp.h endian.h machine/endian.h sys/endian.h sys/machine.h)
AC_CACHE_CHECK(whether byte ordering is bigendian, sc_cv_c_bigendian,
[sc_cv_c_bigendian=unknown
# See if sys/param.h defines the BYTE_ORDER macro.
AC_TRY_COMPILE([#include "confdefs.h"
#ifdef HAVE_FP_H
#include <fp.h>
#endif
#ifdef HAVE_ENDIAN_H
#include <endian.h>
#endif
#ifdef HAVE_MACHINE_ENDIAN_H
#include <machine/endian.h>
#endif
#ifdef HAVE_SYS_ENDIAN_H
#include <sys/endian.h>
#endif
#ifdef HAVE_SYS_MACHINE_H
#include <sys/machine.h>
#endif
#include <sys/types.h>
#include <sys/param.h>], [
#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
 bogus endian macros
#endif], [# It does; now see whether it defined to BIG_ENDIAN or not.
AC_TRY_COMPILE([#include "confdefs.h"
#ifdef HAVE_FP_H
#include <fp.h>
#endif
#ifdef HAVE_MP_H
#include <mp.h>
#endif
#ifdef HAVE_ENDIAN_H
#include <endian.h>
#endif
#ifdef HAVE_MACHINE_ENDIAN_H
#include <machine/endian.h>
#endif
#ifdef HAVE_SYS_ENDIAN_H
#include <sys/endian.h>
#endif
#ifdef HAVE_SYS_MACHINE_H
#include <sys/machine.h>
#endif
#include <sys/types.h>
#include <sys/param.h>], [
#if BYTE_ORDER != BIG_ENDIAN
 not big endian
#endif], sc_cv_c_bigendian=yes, sc_cv_c_bigendian=no)])
if test $sc_cv_c_bigendian = unknown; then
AC_TRY_RUN([main () {
  /* Are we little or big endian?  From Harbison&Steele.  */
  union
  {
    long l;
    char c[sizeof (long)];
  } u;
  u.l = 1;
  exit (u.c[sizeof (long) - 1] == 1);
}], sc_cv_c_bigendian=no, sc_cv_c_bigendian=yes,
AC_MSG_ERROR([Could not determine endianness and cross compiling])
)
fi])
if test $sc_cv_c_bigendian = yes; then
  AC_DEFINE(WORDS_BIGENDIAN)
fi
])

SC_C_BIGENDIAN

dnl --------- Checks for libraries. ---------
dnl -- libpthread should be linked in last.
dnl -- Check on pthread_join since pthread_create, but not pthread_join,
dnl -- seems to be in libc on IRIX and we must generate a -lpthread in LIBS.
if test "(" X$PARALLEL = Xyes -a X$THREADS != Xno ")" -o X$THREADS = Xyes; then

AC_MSG_CHECKING([pthreads])
dnl see if posix threads are automatically linked ...
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
LIBSSAV="$LIBS"
AC_TRY_LINK([#include <pthread.h>],[pthread_join(0,0);],[
HAVE_PTHREAD=yes],[
HAVE_PTHREAD=no])
AC_LANG_RESTORE

dnl see if posix threads are in -lpthread
if test $HAVE_PTHREAD = no; then
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
LIBSSAV="$LIBS"
LIBS="$LIBS -lpthread"
AC_TRY_LINK([#include <pthread.h>],[pthread_join(0,0);],[
HAVE_PTHREAD=yes],[
HAVE_PTHREAD=no
LIBS="$LIBSSAV"])
AC_LANG_RESTORE
fi

dnl see if posix threads are in -lpthreads
if test $HAVE_PTHREAD = no; then
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
LIBSSAV="$LIBS"
LIBS="$LIBS -lpthreads"
AC_TRY_LINK([#include <pthread.h>],[pthread_join(0,0);],[
HAVE_PTHREAD=yes],[
HAVE_PTHREAD=no
LIBS="$LIBSSAV"])
AC_LANG_RESTORE
fi

AC_MSG_RESULT($HAVE_PTHREAD)
fi
if test X$HAVE_PTHREAD = Xyes; then
  AC_DEFINE(HAVE_PTHREAD)
  EXTRADEFINES="-D_REENTRANT $EXTRADEFINES"
  AC_CHECK_FUNC(pthread_attr_getstacksize)
  AC_CHECK_FUNC(pthread_attr_setstacksize)
  AC_CHECK_FUNC(pthread_attr_setscope)
  AC_CHECK_FUNC(pthread_attr_getscope)
  AC_CHECK_FUNC(pthread_attr_setinheritsched)
  AC_CHECK_FUNC(pthread_attr_getinheritsched)
  AC_CHECK_FUNC(pthread_attr_setschedpolicy)
  AC_CHECK_FUNC(pthread_attr_getschedpolicy)
  AC_CHECK_FUNC(pthread_attr_setschedparam)
  AC_CHECK_FUNC(pthread_attr_getschedparam)
  AC_CHECK_FUNC(sched_get_priority_max)
  AC_CHECK_FUNC(sched_get_priority_min)
fi

AC_CHECK_LIB(dl,main)
dnl commented out for Cray X1 (-lsun falsely detected)
dnl AC_CHECK_LIB(sun,main)
AC_CHECK_LIB(m,main)
AC_CHECK_LIB(fl,main)
AC_CHECK_HEADER(perf.h,[
  AC_CHECK_LIB(perf,perf_set_config,[
    HAVE_PERF=yes
    LIBS="-lperf $LIBS"
    AC_DEFINE(HAVE_PERF)
    ])
  ]
)

AC_CHECK_HEADER(execinfo.h,HAVE_EXECINFO_H_INC=1)
AC_CHECK_FUNC(backtrace, HAVE_BACKTRACE_FUNC=1)
AC_CHECK_FUNC(backtrace_symbols_fd, HAVE_BACKTRACE_SYMBOLS_FD_FUNC=1)
if test -n "$HAVE_EXECINFO_H_INC" -a -n "$HAVE_BACKTRACE_FUNC"  -a -n "$HAVE_BACKTRACE_SYMBOLS_FD_FUNC"; then
  AC_DEFINE(HAVE_BACKTRACE)
fi

if test X$PARALLEL = Xyes; then

  dnl ----- check for the mpi library
  AC_LANG_SAVE
  AC_LANG_CPLUSPLUS
  dnl Must use try_link since check_header runs cpp which doesn't
  dnl always find mpi.h (if mpicc and no -I is used for example)
  AC_MSG_CHECKING(for mpi.h)
  AC_TRY_LINK([#include <mpi.h>],[],have_mpi_h=yes,have_mpi_h=no)
  AC_MSG_RESULT($have_mpi_h)
  if test "$have_mpi_h" = yes; then
    AC_CHECK_FUNC(MPI_Init,HAVE_MPI=yes,HAVE_MPI=no)
    if test "$HAVE_MPI" = no; then
      AC_CHECK_LIB(mpi,MPI_Init,[HAVE_MPI=yes;LIBS="-lmpi $LIBS"])
    fi
    if test "$HAVE_MPI" = no; then
      AC_CHECK_LIB(mpich,MPI_Init,[HAVE_MPI=yes;LIBS="-lmpich $LIBS"])
    fi
  fi
  if test X$HAVE_MPI = Xyes; then
    AC_DEFINE(HAVE_MPI)
    AC_CHECK_FUNC(MPI_File_open,
                 [HAVE_MPIIO=yes;AC_DEFINE(HAVE_MPIIO)])
    AC_CHECK_FUNC(MPI_Init_thread,
                 [AC_DEFINE(HAVE_MPI_INIT_THREAD)])
    HAVE_MPIPP=no; 
    AC_CHECK_LIB(mpi++,MPI_Abort,[HAVE_MPIPP=yes;LIBS="-lmpi++ $LIBS"])
    if test X$HAVE_MPIPP = Xno; then
      AC_CHECK_LIB(pmpich++,MPI_Abort,[HAVE_MPIPP=yes;LIBS="-lpmpich++ $LIBS"])
    fi
    AC_DEFINE(HAVE_MPIPP)
  fi
  AC_LANG_RESTORE
fi

if test X$HAVE_MPI != Xyes -a $ALWAYS_USE_MPI = yes; then
  AC_MSG_ERROR([--enable-always-use-mpi is set but MPI is not available])
elif test $ALWAYS_USE_MPI = yes; then
  AC_DEFINE(ALWAYS_USE_MPI)
fi

  dnl ------ check for the armci library
  AC_LANG_SAVE
  AC_LANG_CPLUSPLUS
  AC_CHECK_HEADER(armci.h,[
    AC_CHECK_FUNC(ARMCI_Init,HAVE_ARMCI=yes,[
      AC_CHECK_LIB(armci,ARMCI_Init,[HAVE_ARMCI=yes;LIBS="-larmci $LIBS"])
    ])
  ])
  AC_LANG_RESTORE

  if test X$HAVE_ARMCI = Xyes; then
    AC_DEFINE(HAVE_ARMCI)
  fi

if test $DEFAULT_PARALLEL = mtmpi -a X$HAVE_MPI != Xyes; then
  AC_MSG_ERROR([--with-default-parallel=mtmpi but MPI not available])
fi
if test $DEFAULT_PARALLEL = armcimpi -a X$HAVE_MPI != Xyes; then
  AC_MSG_ERROR([--with-default-parallel=armcimpi but MPI not available])
fi
if test $DEFAULT_PARALLEL = armcimpi -a X$HAVE_ARMCI != Xyes; then
  AC_MSG_ERROR([--with-default-parallel=armcimpi but ARMCI not available])
fi

AC_SUBST(HAVE_PERF)
AC_SUBST(HAVE_MPI)
AC_SUBST(ALWAYS_USE_MPI)
AC_SUBST(HAVE_ARMCI)
AC_SUBST(HAVE_MPIIO)
AC_SUBST(HAVE_PTHREAD)
AC_SUBST(EXTRADEFINES)

dnl ---------- Checks for header files. -----------

AC_HEADER_STDC
AC_CHECK_HEADERS(fcntl.h limits.h sys/ioctl.h sys/time.h unistd.h pwd.h)
AC_CHECK_HEADERS(sys/times.h sys/resource.h time.h machine/fpu.h asm/fpu.h)
AC_CHECK_HEADERS(termios.h sys/stat.h sys/types.h dlfcn.h stdint.h)

dnl -- Checks for typedefs, structures, and compiler characteristics. --
AC_C_CONST
AC_TYPE_SIZE_T
AC_STRUCT_TM

dnl --------- Checks for library functions. ---------
AC_TYPE_SIGNAL
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(strerror sigfillset signal system getpwuid geteuid)
AC_CHECK_FUNCS(gethostname time ctime)
AC_CHECK_FUNCS(setrlimit setenv)

dnl --------- Check for an isnan and make sure it can be used
dnl           with iostream (it can't on OS X)
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING(isnan and iostream)
AC_LINK_IFELSE([
  #include <iostream>
  #include <math.h>
  int main(int,char**) { isnan(1.0); return 0; }
  ],
  AC_DEFINE(HAVE_ISNAN)
  AC_MSG_RESULT(yes),
  AC_MSG_RESULT(no)
)
AC_LANG_RESTORE

dnl --------- Check for the glibc extensions to C99 fenv.h. ---------

AC_CHECK_HEADERS(fenv.h)
AC_CHECK_FUNCS(feenableexcept fedisableexcept)

dnl --------- Checks for a C++ linkable fchdir. ---------
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING([fchdir])
AC_TRY_COMPILE([#include <unistd.h>],[
fchdir(0);
],[HAVE_FCHDIR=yes
AC_DEFINE(HAVE_FCHDIR)
AC_MSG_RESULT(yes)],[
AC_MSG_RESULT(no)
HAVE_FCHDIR=no
])
AC_LANG_RESTORE
AC_SUBST(HAVE_FCHDIR)

dnl --------- Check for ios::fmtflags. ---------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING([ios::fmtflags])
AC_TRY_COMPILE([#include <$iostream>],[
$NAMESPACE_STD ios::fmtflags flags;
],[HAVE_IOS_FMTFLAGS=yes
AC_DEFINE(HAVE_IOS_FMTFLAGS)
AC_MSG_RESULT(yes)],[
AC_MSG_RESULT(no)
HAVE_IOS_FMTFLAGS=no
])
AC_LANG_RESTORE
AC_SUBST(HAVE_IOS_FMTFLAGS)

dnl --------- check for long long  ---------

if test X"$LONGLONG" = Xyes; then
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING(long long)
AC_TRY_COMPILE([],[
long long i;
],[AC_DEFINE(HAVE_LONG_LONG)
AC_MSG_RESULT(yes)],[
AC_MSG_RESULT(no)
])
AC_LANG_RESTORE
fi

dnl --------- Check for sgetn. ---------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING([sgetn])
AC_TRY_COMPILE([#include <$iostream>],[
char *c=0;
$NAMESPACE_STD streambuf *s=0; s->sgetn(c,0);
],[HAVE_SGETN=yes
AC_DEFINE(HAVE_SGETN)
AC_MSG_RESULT(yes)],[
AC_MSG_RESULT(no)
HAVE_SGETN=no
])
AC_LANG_RESTORE
AC_SUBST(HAVE_SGETN)

dnl --------- Check for pubseekoff. ---------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING([pubseekoff])
AC_TRY_COMPILE([#include <$iostream>],[
$NAMESPACE_STD cout.rdbuf()->pubseekoff(0,$NAMESPACE_STD ios::beg,
                                        $NAMESPACE_STD ios::out);
],[HAVE_PUBSEEKOFF=yes
AC_DEFINE(HAVE_PUBSEEKOFF)
AC_MSG_RESULT(yes)],[
AC_MSG_RESULT(no)
HAVE_PUBSEEKOFF=no
])
AC_LANG_RESTORE
AC_SUBST(HAVE_PUBSEEKOFF)

dnl --------- Check for seekoff. ---------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING([seekoff])
AC_TRY_COMPILE([#include <$iostream>],[
$NAMESPACE_STD cout.rdbuf()->seekoff(0,$NAMESPACE_STD ios::beg,
                                     $NAMESPACE_STD ios::out);
],[HAVE_SEEKOFF=yes
AC_DEFINE(HAVE_SEEKOFF)
AC_MSG_RESULT(yes)],[
AC_MSG_RESULT(no)
HAVE_SEEKOFF=no
])
AC_LANG_RESTORE
AC_SUBST(HAVE_SEEKOFF)

dnl --------- Check for signal handler argument lists. ---------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING([signal handler needs ellipsis])
AC_TRY_LINK([
#include <signal.h>
extern "C" {
  typedef void (*signal_handler)(...);
  void handler(int);
}
void handler(int) {}
],[
  signal(SIGINT, (signal_handler)handler);
],
AC_DEFINE(SIGHASELLIP) AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))
AC_LANG_RESTORE

dnl --------- Checks for rand functions ---------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_CHECK_FUNCS(drand48)
AC_LANG_RESTORE

dnl --------- Checks for SYSV IPC. ---------

if test "X$SYSVIPC" = Xyes; then
  AC_CHECK_FUNCS(shmget semget)
  AC_CHECK_HEADERS(sys/ipc.h sys/sem.h sys/shm.h)
  AC_MSG_CHECKING([for SYSV IPC])
  if test X$ac_cv_func_shmget = Xyes -a \
          X$ac_cv_func_semget = Xyes -a \
          X$ac_cv_header_sys_ipc_h = Xyes -a \
          X$ac_cv_header_sys_sem_h = Xyes -a \
          X$ac_cv_header_sys_shm_h = Xyes; then
    HAVE_SYSV_IPC=yes
    AC_DEFINE(HAVE_SYSV_IPC)
  else
    HAVE_SYSV_IPC=no
  fi
  AC_MSG_RESULT($HAVE_SYSV_IPC)
  AC_SUBST(HAVE_SYSV_IPC)
else
  HAVE_SYSV_IPC=no
  AC_SUBST(HAVE_SYSV_IPC)
fi

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING([if semctl requires semun])
AC_TRY_LINK([
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
],[
  int val = 0;
  semctl(0,0,0,val);
],[
case $target in
  *-sgi-irix*)
    AC_DEFINE(SEMCTL_REQUIRES_SEMUN) AC_MSG_RESULT(sgi-irix -- yes)
  ;;
  *)
    AC_MSG_RESULT(no)
  ;;
esac
],
AC_DEFINE(SEMCTL_REQUIRES_SEMUN) AC_MSG_RESULT(yes))
AC_LANG_RESTORE

dnl ----------- See if Fortran works --------------

AC_MSG_CHECKING(if fortran compiler works)
if test -n "$F77" -a "$F77" != no ; then
  /bin/rm -f ffunc.f flink.c
  echo "      program main" > ffunc.f
  echo "      end" >> ffunc.f
  if $F77 -o ffunc ffunc.f 1>&5 2>&5; then
    AC_MSG_RESULT(yes)
  else
    AC_MSG_RESULT(no)
    AC_MSG_FAILURE(fortran compiler does not work)
  fi
  /bin/rm -f ffunc ffunc.f
fi

dnl ----------- Fortran symbol names --------------

AC_MSG_CHECKING(fortran symbols)
if test -n "$F77" -a "$F77" != no ; then
  /bin/rm -f ffunc.f flink.c
  echo "      subroutine ffunc()" > ffunc.f
  echo "      return" >> ffunc.f
  echo "      end" >> ffunc.f
  $F77 -c ffunc.f 1>/dev/null 2>/dev/null
  echo "main(){ FF(); return 0; }" > flink.c
  if $CC -o flink -DFF=ffunc flink.c ffunc.o $LDFLAGS $LIBS 1>/dev/null 2>/dev/null; then
    AC_MSG_RESULT(same as C)
    F77_SYMBOLS=symbol
  elif $CC -o flink -DFF=ffunc_ flink.c ffunc.o $LDFLAGS $LIBS 1>/dev/null 2>/dev/null; then
    AC_MSG_RESULT(lowercase with underscore)
    F77_SYMBOLS=symbol_
  elif $CC -o flink -DFF=FFUNC flink.c ffunc.o $LDFLAGS $LIBS 1>/dev/null 2>/dev/null; then
    AC_MSG_RESULT(uppercase)
    F77_SYMBOLS=SYMBOL
  elif $CC -o flink -DFF=FFUNC_ flink.c ffunc.o $LDFLAGS $LIBS 1>/dev/null 2>/dev/null; then
    AC_MSG_RESULT(uppercase with underscore)
    F77_SYMBOLS=SYMBOL_
  else
    AC_MSG_RESULT(giving up)
    AC_MSG_ERROR(could not determine F77 symbol names)
  fi
  /bin/rm -f ffunc.f ffunc.o flink flink.c flink.o ffunc
else
  F77_SYMBOLS=symbol_
  AC_MSG_RESULT(guessing lowercase with underscore)
fi
AC_SUBST(F77_SYMBOLS)

dnl ----------- check for FORTRAN libraries --------------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
LIBSSAV="$LIBS"
LIBS="$LIBSSAV $FLIBS"

LIBBLAS=""
F77_DGEMM=`$PERL $srcdir/bin/mkf77sym.pl.in -method $F77_SYMBOLS DAXPY`
AC_CHECK_FUNC($F77_DGEMM,HAVE_BLAS=yes,[
  AC_CHECK_LIB(essl,$F77_DGEMM,[HAVE_BLAS=yes;LIBBLAS="-lessl"],
    AC_CHECK_LIB(blas,$F77_DGEMM,[HAVE_BLAS=yes;LIBBLAS="-lblas"])
  )]
)
if test X$HAVE_BLAS != Xyes; then
  LIBSSAV2="$LIBS"
  LIBS="-latlas $LIBS"
  AC_CHECK_LIB(f77blas,$F77_DGEMM,[HAVE_BLAS=yes;LIBBLAS="-lf77blas -latlas"],
               LIBS="$LIBSSAV2")
fi
AC_SUBST(HAVE_BLAS)
if test X$HAVE_BLAS != Xyes; then
  echo "WARNING: Could not link to the BLAS library.  It can be obtained at"
  echo "http://www.netlib.org/blas.  Use --with-libdirs and/or --with-libs"
  echo "to specify the name of the library."
  AC_MSG_ERROR([BLAS is required to complete the build])
fi

LIBS="$LIBSSAV $LIBBLAS $FLIBS"

LIBLAPACK=""
F77_DGESVD=`$PERL $srcdir/bin/mkf77sym.pl.in -method $F77_SYMBOLS DGESVD`
AC_CHECK_FUNC($F77_DGESVD,HAVE_LAPACK=yes,[
  AC_CHECK_LIB(lapack,$F77_DGESVD,[HAVE_LAPACK=yes;LIBLAPACK="-llapack"]
  )]
)
AC_SUBST(HAVE_LAPACK)
if test X$HAVE_LAPACK != Xyes; then
  echo "Could not link to the LAPACK library.  It can be obtained at"
  echo "http://www.netlib.org/lapack.  Use --with-libdirs and/or --with-libs"
  echo "to specify the name of the library."
  AC_MSG_ERROR([LAPACK is required to complete the build])
fi

FLIBS="$LIBLAPACK $LIBBLAS $FLIBS"
AC_LANG_RESTORE

dnl ----------- check for Scalable BLAS library --------------

LIBSSAV="$LIBS"
LIBS="$LIBS $FLIBS"
HAVE_SCALABLE_BLAS=no
AC_CHECK_FUNC(sB_init,
  HAVE_SCALABLE_BLAS=yes,[
  AC_CHECK_LIB(sB_BLAS,sB_init,[
    HAVE_SCALABLE_BLAS=yes
    LIBSSAV="-lsB_BLAS $LIBSSAV"
  ])]
)
LIBS="$LIBSSAV"
if test $HAVE_SCALABLE_BLAS = yes; then
  AC_DEFINE(HAVE_SCALABLE_BLAS)
fi

dnl ----------- NIAMA library checks --------------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_CHECK_PROG(NIAMACFG,niama-config,niama-config)
if test X$NIAMACFG != X; then
  LIBSSAV="$LIBS"
  CPPSAV="$CPPFLAGS"
  NIAMALIBS="`niama-config --libs` `niama-config --corbalibs`"
  CPPFLAGS="$CPPFLAGS `niama-config --cppflags`"
  LIBS="$NIAMALIBS $LIBS"
AC_TRY_LINK([
#include <niama.h>
],[
  exit(0);
],[
  AC_DEFINE(HAVE_NIAMA)
],[
  LIBS="$LIBSSAV"
  CPPFLAGS="$CPPSAV"
]
)
fi
AC_LANG_RESTORE

dnl ----------- libint library checks --------------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_CHECK_HEADERS(libint/libint.h,
  AC_CHECK_LIB(int,init_libint_base,
    HAVE_LIBINT=yes
    AC_DEFINE(HAVE_LIBINT)
    AC_SUBST(HAVE_LIBINT)
    LIBS="-lint $LIBS"
    )
  )
AC_LANG_RESTORE

dnl ----------- libr12 library checks --------------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_CHECK_HEADERS(libr12/libr12.h,
  AC_CHECK_LIB(r12,init_libr12_base,
    HAVE_LIBR12=yes
    AC_DEFINE(HAVE_LIBR12)
    AC_SUBST(HAVE_LIBR12)
    LIBS="-lr12 $LIBS"
    )
  )
AC_LANG_RESTORE

dnl ----------- libderiv library checks --------------

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_CHECK_HEADERS(libderiv/libderiv.h,
  AC_CHECK_LIB(deriv,init_libderiv_base,
    HAVE_LIBDERIV=yes
    AC_DEFINE(HAVE_LIBDERIV)
    AC_SUBST(HAVE_LIBDERIV)
    LIBS="-lderiv $LIBS"
    )
  )
AC_LANG_RESTORE

dnl ----------- make sure we have everything for cints and mbptr12 ----------

if test ! X$HAVE_LIBR12 = Xyes -o ! X$HAVE_LIBINT = Xyes; then
  EXCLUDED_DIRS="-x SRC_LIB_CHEMISTRY_QC_CINTS -x SRC_LIB_CHEMISTRY_QC_MBPTR12 $EXCLUDED_DIRS"
fi

dnl --------- Template instantiation. ---------

if test $template_instantiation = auto; then
AC_MSG_CHECKING(choosing template instantiation method)
  if test X$GXX = Xyes; then
    AC_MSG_RESULT("gcc (none)")
  else
    case $target in
      *-sgi-irix6.0*)
        AC_MSG_RESULT("*-sgi-irix6.0* (none)")
        ;;
      *-sgi-irix*)
        template_instantiation=ptused
        AC_MSG_RESULT("*-sgi-irix* (ptused)")
        ;;
      *-cray-unicos*)
        template_instantiation=craysimp
        AC_MSG_RESULT("*-cray-unicos* (craysimp)")
        ;;
      *-dec-osf*)
        template_instantiation=repodir
        AC_MSG_RESULT("*-dec-osf* (repodir)")
        ;;
      alpha*)
        template_instantiation=repodir
        AC_MSG_RESULT("alpha* non-GNU C++ (repodir)")
        ;;
      *-solaris*)
        template_instantiation=sunexpl
        AC_MSG_RESULT("*-solaris* (sunexpl)")
        ;;
      *)
        AC_MSG_RESULT("generic non GNU (none)")
        ;;
    esac
  fi
fi

if test $template_instantiation = auto; then
  template_instantiation=none
fi

AC_MSG_CHECKING(template instantiation flags)
TMPLINST=no
TMPLREPO=
TMPLINLIB=no
case $template_instantiation in
  repodir)
    TMPLREPO=cxx_repository
    TMPLINLIB=yes
    ;;
  craysimp)
    CXXFLAGS="$CXXFLAGS -h simple_templates"
    ;;
  gnurepo)
    TMPLINST=yes
    CXXFLAGS="$CXXFLAGS -frepo"
    AC_MSG_RESULT(gnurepo)
    ;;
  gnuexpl)
    # automatic template instantiation causes problems with libstc++-v3
    CXXFLAGS="$CXXFLAGS -fno-implicit-templates"
    EXPLICIT_TEMPLATE_INSTANTIATION=yes
    AC_DEFINE(EXPLICIT_TEMPLATE_INSTANTIATION)
    ;;
  sunexpl)
    CXXFLAGS="$CXXFLAGS -instances=explicit"
    AC_DEFINE(EXPLICIT_TEMPLATE_INSTANTIATION)
    ;;
  ptused)
    CXXFLAGS="$CXXFLAGS -ptused"
    ;;
  none)
    AC_MSG_RESULT(none)
    ;;
  *)
    AC_MSG_RESULT($template_instantiation)
    AC_MSG_ERROR(unknown template instantiation method)
esac

AC_SUBST(TMPLINST)
AC_SUBST(TMPLREPO)
AC_SUBST(TMPLINLIB)

dnl --------- Checks that must be done last. ---------

AC_MSG_CHECKING([for special flags that must be set last])
case $target in
  i860-intel-puma*)
    LDFLAGS="$LDFLAGS -mpuma -mnoieee"
    AC_MSG_RESULT(paragon puma)
  ;;
  i686-intel-cougar*)
    LDFLAGS="$LDFLAGS -mcougar -mnoieee"
    AC_MSG_RESULT(teraflop cougar)
  ;;
  i860-intel-sunmos*)
    LDFLAGS="$LDFLAGS -msunmos -mnoieee"
    AC_MSG_RESULT(paragon sunmos)
  ;;
  i860-intel-osf*)
    LDFLAGS="$LDFLAGS -mnx -mnoieee"
    AC_MSG_RESULT(osf paragon)
  ;;
  *)
    AC_MSG_RESULT(none)
  ;;
esac

dnl --------- Shared library configuration. ---------

enablelibtool=yes
AC_ARG_ENABLE(libtool,
[  --disable-libtool       Do not use libtool.],
[
case $enableval in
  yes)
  ;;
  no)
    enablelibtool=no
  ;;
  *)
    AC_MSG_ERROR([Invalid value for --(dis|en)able-libtool ($enableval)])
  ;;
esac
])

if test "$enablelibtool" = yes; then

dnl by default make only static libraries
AC_DISABLE_SHARED
AC_PROG_LIBTOOL

OBJSUF=lo
LIBSUF=la

else

enable_shared=no

fi

if test "$enable_shared" = "no"; then
  OBJSUF=o
  LIBSUF=a
fi

ENABLESHARED=$enable_shared
AC_SUBST(ENABLESHARED)

dnl --------- CCA component configuration ---------

if test $components == "yes"; then

  if test $HAVE_MPI == "yes" &&
     test $HAVE_MPIPP == "no"; then
    AC_MSG_ERROR([libmpi++ needed for mpi cca components])
  fi

  if test -z $CCA_CHEM_CONFIG && ! test -x $CCA_CHEM_CONFIG; then
    AC_MSG_ERROR([cca-chem-config is required to build CCA component code])
  fi

  CCA_CHEM_INCLUDE=`$CCA_CHEM_CONFIG --includedir`
  CCA_CHEM_LIB=`$CCA_CHEM_CONFIG --libdir`
  CCA_CHEM_PREFIX=`$CCA_CHEM_CONFIG --prefix`
  CCA_CHEM_REPO=$CCA_CHEM_PREFIX/repo
  AC_SUBST(CCA_CHEM_INCLUDE)
  AC_SUBST(CCA_CHEM_LIB)
  AC_SUBST(CCA_CHEM_REPO)

  CCAFE_CONFIG=`$CCA_CHEM_CONFIG --ccafe-config`
  ENABLE_PYTHON="no" # no need for python checks
  AC_CHECK_CCA()

  LIBS="-L$CCAFE_LIB $LIBS"
  CCA_CHEM_INCLUDE=-I$CCA_CHEM_INCLUDE
  BABEL_INCLUDE=-I$BABEL_INCLUDE
  CCA_SPEC_BABEL_INCLUDE=-I$CCA_SPEC_BABEL_INCLUDE
  CCAFE_INCLUDE="-I$CCAFE_INCLUDE -I$CCAFE_INCLUDE/dc/babel/babel-cca/server"
  CPPFLAGS="$CPPFLAGS $BABEL_INCLUDE $CCA_SPEC_BABEL_INCLUDE $CCA_CHEM_INCLUDE $CCAFE_INCLUDE"

  AC_CHECK_HEADER(sidl.h,
    AC_DEFINE(HAVE_SIDL_HEADERS),
    AC_MSG_ERROR([problem with babel headers]) )
  AC_CHECK_HEADER(gov_cca_IOR.h,
    AC_DEFINE(HAVE_CCA_SPEC_BABEL_HEADERS),
    AC_MSG_ERROR([problem with cca-spec-babel headers]) )
  AC_CHECK_HEADER(Chemistry_QC_Model_IOR.h,
    AC_DEFINE(HAVE_CCA_CHEM_HEADERS),
    AC_MSG_ERROR([problem with cca-chem-generic headers]) )

else
  EXCLUDED_DIRS="-x LIB_CCA -x SRC_LIB_CHEMISTRY_CCA -x SRC_LIB_CHEMISTRY_QC_INTCCA $EXCLUDED_DIRS"
fi

dnl --------- Find the list of all sc libraries. ---------

SCLIBS=`$PERL $srcdir/bin/listlibs.pl -I$srcdir/src/lib -DLIBSUF=$LIBSUF $srcdir/src/lib`
AC_SUBST(SCLIBS)

dnl --------- Define the library directory macros. ---------

if test "$enableproduction" = "no"; then
AC_DEFINE_DIR(SRC_SCLIBDIR, srcdir/lib)
fi
AC_DEFINE_DIR(INSTALLED_SCLIBDIR, prefix/lib)
AC_DEFINE_DIR(SCDATADIR, scdatadir)

dnl --------- Create the stub Makefiles. ---------

$PERL $srcdir/bin/objectdir.pl $EXCLUDED_DIRS $srcdir

AC_OUTPUT(lib/LocalMakefile lib/cca/components.cca bin/sc-config bin/mkf77sym.pl src/bin/mpqc/mpqcrun src/bin/mpqc/ccarun src/bin/mpqc/validate/makeccain.pl doc/doxygen.cfg doc/doxygen.man1.cfg doc/doxygen.man3.cfg)
chmod +x bin/sc-config
chmod +x src/bin/mpqc/mpqcrun
chmod +x src/bin/mpqc/ccarun
chmod +x src/bin/mpqc/validate/makeccain.pl