configure.ac

# CAPABILITY TESTING MACROS
m4_define(
  [M4_HDF5_LIB],
  [
    cat > nptm_test_hdf5.cpp <<EOF
#include <hdf5.h>
int main(int argc, char **argv) {
  hid_t file_id = 0;
  herr_t status = H5Iis_valid(file_id);
  return (int)status;
}
EOF
    $CXX -o nptm_test_hdf5 nptm_test_hdf5.cpp -I$HDF5_INCLUDE -L$HDF5_LIB -lhdf5 > /dev/null 2>>error.log
    export TEST_HDF5_LIB=$?
    rm nptm_test_hdf5.cpp
    if test "x$TEST_HDF5_LIB" = "x0"; then
      rm nptm_test_hdf5
    fi
  ]
)

m4_define(
  [M4_DETECT_LAPACK],
  [
    LAPACK_ROOT=$MKLROOT
    if test "x$LAPACK_ROOT" != "x"; then
      export LAPACK_INCLUDE=$(MKLROOT)/include
      export LAPACK_LIB=$(MKLROOT)/lib
      export LAPACK_LIBRARY="-Wl,--no-as-needed -lmkl_intel_ilp64 -lmkl_gnu_thread -lmkl_core -lgomp -lpthread -lm -ldl"
    else
      export LAPACK_INCLUDE=/usr/include
      export LAPACK_LIB=/lib/x86_64-linux-gnu
      export LAPACK_LIBRARY="-llapacke64"
    fi
  ]
)
# END CAPABILITY TESTING MACROS

# autoconf setup initialization
AC_INIT([np_tmcode], [8.04], [giovanni.lamura@inaf.it])

# Folder structure safety check
AC_CONFIG_SRCDIR([../src/libnptm/TransitionMatrix.cpp])

# Auxiliary build folder
AC_CONFIG_AUX_DIR([build_aux])

# automake initialization
AM_INIT_AUTOMAKE([-Wall -Werror foreign])

# Compiler detection
AM_PROG_AR
AC_ARG_ENABLE(
  [mpi],
  [AS_HELP_STRING([--enable-mpi], [use MPI if available [default=yes]])],
  [
    if test "x$enableval" = "xno"; then
      if test "x$F77" = "xmpif90"; then
        gfortran --version > /dev/null
        if test "x$?" = "x0"; then
          AC_SUBST([F77], [gfortran])
        fi
      fi
      if test "x$F77" = "xmpif90"; then
        f77 --version > /dev/null
        if test "x$?" = "x0"; then
          #export F77=f77
          AC_SUBST([F77], [f77])
        fi
      fi
      if test "x$CXX" = "xmpicxx"; then
        g++ --version > /dev/null
        if test "x$?" = "x0"; then
          #export CXX=g++
          AC_SUBST([CXX], [g++])
        fi
      fi
      if test "x$CXX" = "xmpicxx"; then
        clang --version > /dev/null
        if test "x$?" = "x0"; then
          #export CXX=clang
          AC_SUBST([CXX], [clang])
        fi
      fi
      if test "x$F77" = "x"; then
        gfortran --version > /dev/null
        if test "x$?" = "x0"; then
          #export F77=gfortran
          AC_SUBST([F77], [gfortran])
        fi
      fi
      if test "x$F77" = "x"; then
        f77 --version > /dev/null
        if test "x$?" = "x0"; then
          #export F77=f77
          AC_SUBST([F77], [f77])
        fi
      fi
      if test "x$CXX" = "x"; then
        g++ --version > /dev/null
        if test "x$?" = "x0"; then
          #export CXX=g++
          AC_SUBST([CXX], [g++])
        fi
      fi
      if test "x$CXX" = "x"; then
        clang --version > /dev/null
        if test "x$?" = "x0"; then
          #export CXX=clang
          AC_SUBST([CXX], [clang])
        fi
      fi
    else
      mpicxx --version > /dev/null
      if test "x$?" = "x0"; then
        #export CXX=mpicxx
        #export F77=mpif90
        AC_SUBST([CXX], [mpicxx])
        AC_SUBST([F77], [mpif90])
      else
        AC_MSG_ERROR(["MPI was enabled, but no MPI compiler was found!"])
      fi
    fi
  ],
  [
    if test "x$CXX" = "x"; then
      mpicxx --version > /dev/null
      if test "x$?" = "x0"; then
        #export CXX=mpicxx
        #export F77=mpif90
        AC_SUBST([CXX], [mpicxx])
        AC_SUBST([F77], [mpif90])
      fi
    fi
    if test "x$CXX" = "x"; then
      g++ --version > /dev/null
      if test "x$?" = "x0"; then
        #export CXX=g++
        AC_SUBST([CXX], [g++])
      fi
    fi
    if test "x$CXX" = "x"; then
      clang --version > /dev/null
      if test "x$?" = "x0"; then
        #export CXX=clang
        AC_SUBST([CXX], [clang])
      fi
    fi
  ]
)
AC_PROG_CXX([$CXX])
AC_PROG_F77([$F77])

# Libtool initialization
LT_INIT

# Environment setup
AS_IF(
  [test "x$HDF5_INCLUDE" = "x"],
  [AC_SUBST([HDF5_INCLUDE], ["/usr/include/hdf5/serial"])],
  [AC_MSG_NOTICE([HDF5_INCLUDE=$(HDF5_INCLUDE)])]
)
AS_IF(
  [test "x$HDF5_LIB" = "x"],
  [AC_SUBST([HDF5_LIB], ["/usr/lib/x86_64-linux-gnu/hdf5/serial"])],
  [AC_MSG_NOTICE([HDF5_LIB=$(HDF5_LIB)])]
)

# Check for required headers
AC_CHECK_HEADER(
  [$HDF5_INCLUDE/hdf5.h],
  ,
  AC_MSG_ERROR(["Could not find HDF5 headers!]),
)

# Check for required libraries
M4_HDF5_LIB
AS_IF(
  [test "x$TEST_HDF5_LIB" = "x0"],
  [AC_SUBST([HDF5_LDFLAGS], ["-L${HDF5_LIB} -lhdf5"])],
  [AC_MSG_ERROR(["HDF5 library not found!"])]
)

# Configure the optional features
M4_DETECT_LAPACK
AS_IF(
  [test "x$LAPACK_LIBRARY" != "x"],
  [AC_MSG_NOTICE([LAPACK detected])],
  [AC_MSG_NOTICE([No LAPACK found])]
)

AC_ARG_ENABLE(
  [openmp],
  [AS_HELP_STRING([--enable-openmp], [enable OpneMP multi-threading [default=yes]])],
  [
    if test "x$enableval" != "xno"; then
      AC_SUBST([OMPFLAGS], ["-fopenmp"])
    fi
  ],
  [
    AC_SUBST([OMPFLAGS], ["-fopenmp"])
  ]
)

AC_ARG_WITH(
  [lapack],
  [AS_HELP_STRING([--with-lapack], [use LAPACK @<:@default=check@:>@])],
  [
    if test "x$withval" = "xno"; then
      AC_SUBST([LAPACK_FLAGS], [""])
      AC_SUBST([LAPACK_LDFLAGS], [""])
    fi
  ],
  [
    if test "x$LAPACK_INCLUDE" != "x"; then
      AC_SUBST([LAPACK_FLAGS], ["-DUSE_LAPACK -DLAPACK_ILP64 -DUSE_ILP64 -I${LAPACK_INCLUDE}"])
      AC_SUBST([LAPACK_LDFLAGS], ["-L${LAPACK_LIB} ${LAPACK_LIBRARY}"])
    fi
  ]
)

AC_ARG_WITH(
  [magma],
  [AS_HELP_STRING([--with-magma], [use MAGMA @<:@default=check@:>@])],
  [],
  []
)

AC_ARG_ENABLE(
  [ilp64],
  [AS_HELP_STRING([--enable-ilp64], [use MAGMA @<:@default=check@:>@])],
  [],
  []
)

FFLAGS="-std=legacy -O3"
CXXFLAGS="-O3 -ggdb -Wno-format-contains-nul -I$HDF5_INCLUDE $OMPFLAGS $LAPACK_FLAGS"
SUBDIRS="cluster libnptm sphere testing trapping"

# Send output to Makefiles
AC_CONFIG_FILES([Makefile])

# Generate the output
AC_OUTPUT