configure

#!/bin/sh

# Copyright (C) 2010, 2011, Steffen Knollmann
# Released under the terms of the GNU General Public License version 3.
# This file is part of `ginnungagap'.

# Get aroud the $ECHO quirks
ECHO=/bin/echo

# Get a bunch of informative things
if test -e version.h
then
	PROPER_VERSION_INFO="yes"
	VERSIONFILE=version.h
else
	PROPER_VERSION_INFO="no"
	VERSIONFILE=version.h.in
fi
PACKAGE_NAME=`  grep 'define PACKAGE_NAME' $VERSIONFILE \
              | awk '{print $3}' | sed s/\"//g`
PACKAGE_OWNER=`  grep 'define PACKAGE_OWNER' $VERSIONFILE \
              | awk -F\" '{print $2}'`
PACKAGE_BUG_EMAIL=`  grep 'define PACKAGE_BUG_EMAIL' $VERSIONFILE \
                   | awk '{print $3}' | sed s/\"//g`
PACKAGE_VERSION_MAJOR=`  grep 'define PACKAGE_VERSION_MAJOR' $VERSIONFILE \
                       | awk '{print $3}' | sed s/\"//g`
PACKAGE_VERSION_MINOR=`  grep 'define PACKAGE_VERSION_MINOR' $VERSIONFILE \
                       | awk '{print $3}' | sed s/\"//g`
PACKAGE_VERSION_MICRO=`  grep 'define PACKAGE_VERSION_MICRO' $VERSIONFILE \
                       | awk '{print $3}' | sed s/\"//g`

# Initialise the options
SHOW_HELP=false
SHOW_VERSION=false
SYSTEMTYPE=none
PREFIX=auto
EPREFIX=auto
BINDIR=auto

TOOLCHAIN=gnu

WITH_OPENMP=false

WITH_MPI=false
WITH_MPI_BIN_DIR=auto
MPICC=auto

WITH_SPRNG=true
WITH_SPRNG_PREFIX=auto
WITH_SPRNG_INC_DIR=auto
WITH_SPRNG_LIB_DIR=auto
WITH_SPRNG_LIBS=auto

WITH_FFT=fftw3
WITH_FFT_PREFIX=auto
WITH_FFT_INC_DIR=auto
WITH_FFT_LIB_DIR=auto
WITH_FFT_LIBS=auto

WITH_SILO=false
WITH_SILO_BACKEND=standard
WITH_SILO_PREFIX=auto
WITH_SILO_INC_DIR=auto
WITH_SILO_LIB_DIR=auto
WITH_SILO_LIBS=auto

WITH_HDF5=false
WITH_HDF5_PREFIX=auto
WITH_HDF5_INC_DIR=auto
WITH_HDF5_LIB_DIR=auto
WITH_HDF5_LIBS=auto

WITH_GSL_PREFIX=auto
WITH_GSL_BIN_DIR=auto
WITH_GSL_INC_DIR=auto
WITH_GSL_LIB_DIR=auto
WITH_GSL_LIBS=auto

WITH_MPITRACE=false
WITH_MPITRACE_PREFIX=auto
WITH_MPITRACE_INC_DIR=auto
WITH_MPITRACE_LIB_DIR=auto

WITH_PROC_DIR=false
ENABLE_DOUBLE=false
ENABLE_WRITING=true
ENABLE_DEBUG=false
ENABLE_PROFILE=false
NDIM_VALUE=3

# Parse the options
for ac_option
do
	case $ac_option in
		*=*)  ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
		*)    ac_optarg=yes ;;
	esac

	case $ac_option in
		--system)
			$ECHO "Error: --system requires an argument"
			exit 1
			;;
		--system=*)
			SYSTEMTYPE=$ac_optarg
			# Check for a pre-defined system
			if test "x$SYSTEMTYPE" != "xnone"
			then
				# Sources the file that deals with the setting of
				# predefined things, if the systemtype is unknown, this
				# will terminate the configure script.
				. ./configure.systems
			fi
			;;
		--prefix)
			$ECHO "Error: --prefix requires an argument"
			exit 1
			;;
		--prefix=*)
			PREFIX=$ac_optarg
			;;
		--exec-prefix)
			$ECHO "Error: --exec-prefix requires an argument"
			exit 1
			;;
		--exec-prefix=*)
			EPREFIX=$ac_optarg
			;;
		--bindir)
			$ECHO "Error: --bindir requires an argument"
			exit 1
			;;
		--bindir=*)
			BINDIR=$ac_optarg
			;;
		--toolchain)
			$ECHO -n "Error: --toolchain requires an argument; "
			$ECHO "use, e.g., --toolchain=gnu"
			exit 1
			;;
		--toolchain=*)
			TOOLCHAIN=$ac_optarg
			;;
		--with-openmp | --with-openmp=*)
			if test "x$ac_optarg" = "xyes"
			then
				WITH_OPENMP=true
			else
				WITH_OPENMP=false
			fi
			;;
		--without-openmp)
			WITH_OPENMP=false
			;;
		# MPI things
		--with-mpi | --with-mpi=*)
			if test "x$ac_optarg" = "xyes"
			then
				WITH_MPI=true
			elif test "x$ac_optarg" = "xno"
			then
				WITH_MPI=false
			else
				WITH_MPI=true
				MPICC=$ac_optarg
			fi
			;;
		--without-mpi | --without-mpi=*)
			WITH_MPI=false
			;;
		--with-mpi-bin-dir)
			$ECHO "Error:  --with-mpi-bin-dir requires an argument."
			exit 1
			;;
		--with-mpi-bin-dir=*)
			WITH_MPI_BIN_DIR=$ac_optarg
			;;
		# SPRNG stuff
		--with-sprng | --with-sprng=*)
			if test "x$ac_optarg" = "xyes"
			then
				WITH_SPRNG=true
			elif test "x$ac_optarg" = "xno"
			then
				WITH_SPRNG=false
			else
				WITH_SPRNG=true
			fi
			;;
		--without-sprng | --without-sprng=*)
			WITH_SPRNG=false
			;;
		--with-sprng-prefix)
			$ECHO "Error:  --with-sprng-prefix requires an argument."
			exit 1
			;;
		--with-sprng-prefix=*)
			WITH_SPRNG_PREFIX="$ac_optarg"
			;;
		--with-sprng-inc-dir)
			$ECHO "Error:  --with-sprng-inc-dir requires an argument."
			exit 1
			;;
		--with-sprng-inc-dir=*)
			WITH_SPRNG_INC_DIR="$ac_optarg"
			;;
		--with-sprng-lib-dir)
			$ECHO "Error:  --with-sprng-lib-dir requires an argument."
			exit 1
			;;
		--with-sprng-lib-dir=*)
			WITH_SPRNG_LIB_DIR="$ac_optarg"
			;;
		--with-sprng-libs)
			$ECHO "Error:  --with-sprng-libs requires an argument."
			exit 1
			;;
		--with-sprng-libs=*)
			WITH_SPRNG_LIBS="$ac_optarg"
			;;
		# FFT stuff
		--with-fft)
			$ECHO "Error:  --with-fft requires an argument."
			exit 1
			;;
		--with-fft=*)
			if test "x$ac_optarg" = "xfftw3"
			then
				WHT_FFT=fftw3
			elif test "x$ac_optarg" = "xfftw2"
			then
				WITH_FFT=fftw2
			else
				$ECHO "Error:  Unkown argument for --with-fft."
				exit 1
			fi
			;;
		--with-fft-prefix)
			$ECHO "Error:  --with-fft-prefix requires an argument."
			exit 1
			;;
		--with-fft-prefix=*)
			WITH_FFT_PREFIX="$ac_optarg"
			;;
		--with-fft-inc-dir)
			$ECHO "Error:  --with-fft-inc-dir requires an argument."
			exit 1
			;;
		--with-fft-inc-dir=*)
			WITH_FFT_INC_DIR="$ac_optarg"
			;;
		--with-fft-lib-dir)
			$ECHO "Error:  --with-fft-lib-dir requires an argument."
			exit 1
			;;
		--with-fft-lib-dir=*)
			WITH_FFT_LIB_DIR="$ac_optarg"
			;;
		--with-fft-libs)
			$ECHO "Error:  --with-fft-libs requires an argument."
			exit 1
			;;
		--with-fft-libs=*)
			WITH_FFT_LIBS="$ac_optarg"
			;;
		# SILO stuff
		--with-silo | --with-silo=*)
			if test "x$ac_optarg" = "xyes"
			then
				WITH_SILO=true
				WITH_SILO_BACKEND=standard
			elif test "x$ac_optarg" = "xno"
			then
				WITH_SILO=false
			else
				WITH_SILO=true
				WITH_SILO_BACKEND=hdf5
			fi
			;;
		--without-silo | --without-silo=*)
			WITH_SILO=false
			;;
		--with-silo-prefix)
			$ECHO "Error:  --with-silo-prefix requires an argument."
			exit 1
			;;
		--with-silo-prefix=*)
			WITH_SILO_PREFIX="$ac_optarg"
			;;
		--with-silo-inc-dir)
			$ECHO "Error:  --with-silo-inc-dir requires an argument."
			exit 1
			;;
		--with-silo-inc-dir=*)
			WITH_SILO_INC_DIR="$ac_optarg"
			;;
		--with-silo-lib-dir)
			$ECHO "Error:  --with-silo-lib-dir requires an argument."
			exit 1
			;;
		--with-silo-lib-dir=*)
			WITH_SILO_LIB_DIR="$ac_optarg"
			;;
		--with-silo-libs)
			$ECHO "Error:  --with-silo-libs requires an argument."
			exit 1
			;;
		--with-silo-libs=*)
			WITH_SILO_LIBS="$ac_optarg"
			;;
		# HDF5 stuff
		--with-hdf5 | --with-hdf5=*)
			if test "x$ac_optarg" = "xyes"
			then
				WITH_HDF5=true
			elif test "x$ac_optarg" = "xno"
			then
				WITH_HDF5=false
			else
				WITH_HDF5=true
			fi
			;;
		--without-hdf5 | --without-hdf5=*)
			WITH_HDF5=false;
			;;
		--with-hdf5-prefix)
			$ECHO "Error:  --with-hdf5-prefix requires an argument."
			exit 1
			;;
		--with-hdf5-prefix=*)
			WITH_HDF5_PREFIX="$ac_optarg"
			;;
		--with-hdf5-inc-dir)
			$ECHO "Error:  --with-hdf5-inc-dir requires an argument."
			exit 1
			;;
		--with-hdf5-inc-dir=*)
			WITH_HDF5_INC_DIR="$ac_optarg"
			;;
		--with-hdf5-lib-dir)
			$ECHO "Error:  --with-hdf5-lib-dir requires an argument."
			exit 1
			;;
		--with-hdf5-lib-dir=*)
			WITH_HDF5_LIB_DIR="$ac_optarg"
			;;
		--with-hdf5-libs)
			$ECHO "Error:  --with-hdf5-libs requires an argument."
			exit 1
			;;
		--with-hdf5-libs=*)
			WITH_HDF5_LIBS="$ac_optarg"
			;;
		# GSL stuff
		--with-gsl-prefix)
			$ECHO i"Error:  --with-gsl-prefix requires an argument."
			exit 1
			;;
		--with-gsl-prefix=*)
			WITH_GSL_PREFIX="$ac_optarg"
			;;
		--with-gsl-bin-dir)
			$ECHO i"Error:  --with-gsl-bin-dir requires an argument."
			exit 1
			;;
		--with-gsl-bin-dir=*)
			WITH_GSL_BIN_DIR="$ac_optarg"
			;;
		--with-gsl-inc-dir)
			$ECHO i"Error:  --with-gsl-inc-dir requires an argument."
			exit 1
			;;
		--with-gsl-inc-dir=*)
			WITH_GSL_INC_DIR="$ac_optarg"
			;;
		--with-gsl-lib-dir)
			$ECHO i"Error:  --with-gsl-lib-dir requires an argument."
			exit 1
			;;
		--with-gsl-lib-dir=*)
			WITH_GSL_LIB_DIR="$ac_optarg"
			;;
		--with-gsl-libs)
			$ECHO "Error:  --with-gsl-libs requires an argument."
			exit 1
			;;
		--with-gsl-libs=*)
			WITH_GSL_LIBS="$ac_optarg"
			;;
		# MPItrace stuff
		--with-mpitrace | --enable-mpitrace=*)
			if test "x$ac_optarg" = "xyes"
			then
				WITH_MPITRACE=true
			else
				WITH_MPITRACE=false
			fi
			;;
		--without-mpitrace | --without-mpitrace=*)
			WITH_MPITRACE=false
			;;
		--with-mpitrace-prefix)
			$ECHO "Error:  --with-mpitrace-prefix requires an argument"
			exit 1
			;;
		--with-mpitrace-prefix=*)
			WITH_MPITRACE_PREFIX="$ac_optarg"
			;;
		--with-mpitrace-inc-dir)
			$ECHO "Error:  --with-mpitrace-inc-dir requires an argument"
			exit 1
			;;
		--with-mpitrace-inc-dir=*)
			WITH_MPITRACE_INC_DIR="$ac_optarg"
			;;
		--with-mpitrace-lib-dir)
			$ECHO "Error:  --with-mpitrace-lib-dir requires an argument"
			exit 1
			;;
		--with-mpitrace-lib-dir=*)
			WITH_MPITRACE_LIB_DIR="$ac_optarg"
			;;
		# More Stuff
		--with-proc-dir | --with-proc-dir=*)
			if test "x$ac_optarg" = "xyes"
			then
				WITH_PROC_DIR=true
			elif test "x$ac_optarg" = "xno"
			then
				WITH_PROC_DIR=false
			else
				WITH_PROC_DIR=true
			fi
			;;
		--without-proc-dir | --without-proc-dir=*)
			WITH_PROC_DIR=false
			;;
		--enable-double | --enable-double=*)
			if test "x$ac_optarg" = "xyes"
			then
				ENABLE_DOUBLE=true
			else
				ENABLE_DOUBLE=false
			fi
			;;
		--disable-double | --disable-double=*)
			ENABLE_DOUBLE=false
			;;
		--enable-writing | --enable-writing=*)
			if test "x$ac_optarg" = "xyes"
			then
				ENABLE_WRITING=true
			else
				ENABLE_WRITING=false
			fi
			;;
		--disable-writing | --disable-writing=*)
			ENABLE_WRITING=false
			;;
		--ndim)
			$ECHO -n "Error:  --ndim requires an argumet; "
			$ECHO "use either --ndim=2 or --ndim=3"
			exit 1
			;;
		--ndim=*)
			if test "x$ac_optarg" = "x3"
			then
				NDIM_VALUE=3
			elif test "x$ac_optarg" = "x2"
			then
				NDIM_VALUE=2
			else
				$ECHO -n "Error:  --ndim accepts only 2 and 3 "
				$ECHO "as arguments"
				exit 1
			fi
			;;
		--enable-debug | --enable-debug=*)
			if test "x$ac_optarg" = "xyes"
			then
				ENABLE_DEBUG=true
			else
				ENABLE_DEBUG=false
			fi
			;;
		--disable-debug | --disable-debug=*)
			ENABLE_DEBUG=false
			;;
		--enable-profile | --enable-profile=*)
			if test "x$ac_optarg" = "xyes"
			then
				ENABLE_PROFILE=true
			else
				ENABLE_PROFILE=false
			fi
			;;
		--disable-profile | --disable-debug=*)
			ENABLE_PROFILE=false
			;;
		-h | --help*)
			SHOW_HELP=true
			;;
		-V | --version*)
			SHOW_VERSION=true
			;;
		-* | --*)
			$ECHO "Unknown option $ac_option."
			$ECHO "Try \`$0 --help' to get a list of allowed options."
			exit 1
			;;
		*)
			$ECHO "Unknown parameter $ac_option"
			$ECHO "Try \`$0 --help' to get a list of allowed options."
			exit 1
			;;
	esac
done

# Print the help screen and exit, if requested
if test "x$SHOW_HELP" = "xtrue"
then
	cat <<_HELP_EOF
\`configure' offers an easy way to configure the features and the build
system of $PACKAGE_NAME $PACKAGE_VERSION_MAJOR.$PACKAGE_VERSION_MINOR.$PACKAGE_VERSION_MICRO.

This script will use the distributed Makefile.config.in and config.h.in
to generate the actual Makefile.config and config.h, respectively.

Usage: $0 [OPTION]... [VAR=VALUE]

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
  -h, --help      Print this help screen.
  -V, --version   Print a version info and exit.
  --system=SYS    Sets some configure options as required for given
                  machines.  It is possible to specify any combination of
                  SYS and other configure options, the ones appearing
                  later will overwrite the earlier ones.
                  See configure.systems for the actual definition of the
                  systems and explanation for how to add your own
                  systems.
                  Note that this will only set compile time things, to
                  execute the code, it might be required to source
                  proper modules and/or set LD_LIBRARY_PATH to find
                  shared libraries.  Try \`ldd EXECUTABLE' to check that
                  all libraries are found.

Installation directories:
  --prefix=PREFIX         Install architecture-independent files into
                          PREFIX.
                          Default: $PREFIX
  --exec-prefix=EPREFIX   Install architecture-dependent files into
                          EPREFIX.
                          Default: $PREFIX
  --bindir=DIR            Directory for user-executables.
                          Default: $EPREFIX/bin

Build options:
  --toolchain[=TOOLCHAIN]  Sets the toolchain used to build $PACKAGE_NAME.
                           This defaults to \`gnu', using gcc, ld and ar.
                           Another option is to specify \`intel', then
                           icc, xild and xiar are used in the toolchain.
                           You can define further toolchains by
                           modifying Makefile.config.in accordingly.
                           Please note the comment at the end of this
                           help screen concerning environment variables.
                           Possible values: gnu, intel, ibm

Optional features:
  --with-FEATURE[=ARG]         Use FEATURE. [ARG=yes]
  --without-FEATURE            Do not use FEATURE.  This is the same as
                               --with-FEATURE=no.
  --with-openmp                Uses the OpenMP directives.  Default: no.
  --with-mpi[=MPICC]           Use MPI.  Note that if you use MPI, it is
                               your duty to make sure that mpicc uses a
                               C compiler that fits to your selected
                               toolchain.  MPICC defaults to \`mpicc'
                               unless explicitly changed.
                               Default: no.
  --with-mpi-bin-dir=DIR       Gives the directory in which MPICC can be
                               found.  This is only required if \`mpicc'
                               cannot be found in the PATH (or the wrong
                               one is picked up there).
                               Default:  auto.
  --with-sprng                 This can be used to toggle the usage of SPRNG
                               to generate random numbers.  Note that if
                               SPRNG is not used, than random numbers have
                               to be provided by means of a white noise
                               file.  Default: yes.
  --with-sprng-prefix=DIR      Use this to direct to the directory where
                               SPRNG is installed on your system.  This
                               assumes that header files are in DIR/include
                               and libraries are in DIR/lib.  You can
                               specify the special value 'auto', it is
                               then presumed that everything can be found
                               using the CPPFLAGS/LDFLAGS environment
                               variables.  Default: auto.
  --with-sprng-inc-dir=DIR     This can be used to directly set the
                               directory where the include files for SPRNG
                               can be found.  If the argument is 'auto',
                               the include directory is either constructed
                               from the install prefix, or, if this is also
                               'auto', it is assumed that the include dir
                               is provided in the CPPFLAGS.  Default: auto.
  --with-sprng-lib-dir=DIR     This is like --with-sprng-inc-dir, but for
                               the directory which contains the library.
                               The same rules apply.  Default: auto.
  --with-sprng-libs=LIBS       Can be used to specify the SPRNG libraries,
                               it should normally not be required and
                               defaults to:
                                 -lsprng
  --with-fft=ARG               This selects the FFT backend that will be
                               used.  Possible options are (note that single
                               and double precision versions are required):
                                 fftw2       Version 2 of FFTW
                                 fftw3  (*)  Version 3 of FFTW
                               The default choice is marked.
  --with-fft-prefix=DIR        See description of --with-sprng-prefix.
                               Default: auto.
  --with-fft-inc-dir=DIR       See description of --with-sprng-inc-dir.
                               Default: auto.
  --with-fft-lib-dir=DIR       See description of --with-sprng-lib-dir.
                               Default: auto.
  --with-fft-libs=LIBS         See description of --with-sprng-libs.
                               Default: auto.
  --with-silo[=ARG]            Use the SILO library to write visualisation
                               outputs.  If ARG is set to 'yes' Silo
                               will be used without external
                               dependencies, if ARG is 'hdf5', Silo
                               needs to be compiled with the HDF5
                               backend.  See '--with-hdf5-*' for details
                               on how to select the proper HDF5
                               installation.
                               Default: no.  
  --with-silo-prefix=DIR       See description of --with-sprng-prefix.
                               Default: auto.
  --with-silo-inc-dir=DIR      See description of --with-sprng-inc-dir.
                               Default: auto.
  --with-silo-lib-dir=DIR      See description of --with-sprng-lib-dir.
                               Default: auto.
  --with-silo-libs=LIBS        This can be used to specify the required
                               libraries for using Silo.  If Silo is
                               actually used, it defaults to:
                                 -lsilo -lz
                               in the non-HDF5 situation and to
                                 -lsiloh5 \$WITH_HDF5_LIBS -lstdc++
                               for HDF5 enabled code (see --with-hdf5).
  --with-hdf5                  Switches on (or off) HDF5 support.
                               Default: false.
  --with-hdf5-prefix=DIR       See description of --with-hdf5-prefix.
                               Default: auto.
  --with-hdf5-inc-dir=DIR      See description of --with-sprng-inc-dir.
                               Default: auto.
  --with-hdf5-lib-dir=DIR      See description of --with-sprng-lib-dir.
                               Default: auto.
  --with-hdf5-libs=LIBS        See description of --with-sprng-lib-dir.
                               Default: auto (-lhdf5 -lz -lm).
  --with-gsl-prefix=DIR        See description of --with-sprng-prefix.  Note
                               that this can be used to specify which
                               gsl-config will be used.
                               Default: auto.
  --with-gsl-bin-dir=DIR       Works as --with-sprng-inc-dir, but specifies
                               the directory in which gsl-config can be
                               found.
                               Default: auto.
  --with-gsl-inc-dir=DIR       See description of --with-sprng-inc-dir.
                               Default: auto.
  --with-gsl-lib-dir=DIR       See description of --with-sprng-lib-dir.
                               Default: auto.
  --with gsl-libs=LIBS         See description of --with-sprng-libs.  This
                               should not be necessary, as gsl-config will
                               be queried to provide the required libraries.
                               Default: auto.
  --with-mpitrace              Instrument the code with MPItrace calls.
                               Default: no.
  --with-mpitrace-prefix=DIR   Give the directory where MPItrace is installed.
                               Default: auto.
  --with-mpitrace-inc-dir=DIR  See description of --with-sprng-inc-dir.
                               Default: auto.
  --with-mpitrace-lib-dir=DIR  See description of --with-sprng-lib-dir.
                               Default: auto.
  --with-proc-dir              If the code can use /proc/self/statm to query
                               its memory usage (true at least on Linux),
                               the you may use this option to allow the code
                               to retrieve memory information at runtime.
                               Default: no.

Code properties:
  --enable-FEATURE[=ARG]   Switch on a feature. [ARG=YES]
  --disable-FEATURE        Do not use FEATURE.  This is the same as
                           --enable-FEATURE=no.
  --enable-double          This switches on the usage of double
                           precision floating point variables instead of
                           single precision for fields and particle
                           properties.  Default: No.
  --enable-writing         Only if enable-writing is set, the resulting
                           files will be written to disc.  This is only 
                           meant to disable the expensive IO for
                           benchmarking.  Default: Yes.
  --ndim=VALUE             Sets the dimensionality of the code.  Allowed
                           values are 2 and 3.  Default: 3.

Extra features:
  --enable-debug           Activates the debugging flags and forces the
                           compiler flags to build debugging symbols.
                           Default: no.
  --enable-profile         Will built the code with profiling output for
                           usage with performance analysis tools.
                           Default: no.

Some influential environment variables:
  CC          The C compiler to use.
  CFLAGS      C compiler flags.
  CPPFLAGS    Additional directives for the preprocessor, e.g.
              \`-L/opt/include'
  DEPCC       This is the C preprocessor that will be used to
              auto-generate dependencies.  No code will be generated
              with that compiler!
  LD          The linker.
  LDFLAGS     Flags required to find libraries, e.g. \`-L/opt/lib'
  AR          The archiver.
  MAKE        The make command that will be used.

Note that theses variables are set by selecting a specific toolchain.
You can use these variables to override the choices made by \`configure'
or to help it to find libraries and programs with nonstandard
names/locations.

Please report bugs to $PACKAGE_BUG_EMAIL.

_HELP_EOF
	exit 0
fi

# Print the version screen and exit, if requested
if test "x$SHOW_VERSION" = "xtrue"
then
	cat <<_VERSION_EOF
This is $PACKAGE_NAME $PACKAGE_VERSION_MAJOR.$PACKAGE_VERSION_MINOR.$PACKAGE_VERSION_MICRO
Copyright (C) 2010, $PACKAGE_OWNER

This is free software; see the attached COPYING document for copying
conditions.  There is NO warranty; not even for MERCHANTABILITY or
FITNESS FOR A PARTICULAR PUSPOSE.

Please send bugreports to $PACKAGE_BUG_EMAIL

_VERSION_EOF
	exit 0
fi

# Deal with install directories
if test "x$PREFIX" = "xauto"
then
	PREFIX=`pwd`
fi
if test "x$EPREFIX" = "xauto"
then
	EPREFIX=$PREFIX
fi
if test "x$BINDIR" = "xauto"
then
	BINDIR=$EPREFIX/bin
fi

# Set MPICC if required
if test "x$WITH_MPI" = "xtrue"
then
	if test "x$MPICC" = "xauto"
	then
		MPICC=mpicc
	fi
	if test "x$WITH_MPI_BIN_DIR" = "xauto"
	then
		MPICC=`which $MPICC`
		WITH_MPI_BIN_DIR=`dirname $MPICC`
	else
		MPICC=$WITH_MPI_BIN_DIR/$MPICC
	fi
else
	MPICC=
fi

# Now set all the (possibly) deferred libraries
if test "x$WITH_SPRNG_LIBS" = "xauto"
then
	WITH_SPRNG_LIBS="-lsprng"
fi
if test "x$WITH_FFT_LIBS" = "xauto"
then
	case $WITH_FFT in
		fftw3)
			if test "x$WITH_OPENMP" = "xtrue"
			then
				WITH_FFT_LIBS="-lfftw3_threads -lfftw3 -lfftw3f_threads -lfftw3f"
			else
				WITH_FFT_LIBS="-lfftw3 -lfftw3f"
			fi
			;;
		fftw2)
			WITH_FFT_LIBS="-ldrfftw -ldfftw -lsrfftw -lsfftw"
	esac
fi
if test "x$WITH_HDF5_LIBS" = "xauto"
then
	WITH_HDF5_LIBS="-lhdf5 -lz -lm"
fi
if test "x$WITH_SILO_LIBS" = "xauto"
then
	if test "x$WITH_SILO_BACKEND" = "xhdf5"
	then
		WITH_SILO_LIBS="-lsiloh5 $WITH_HDF5_LIBS -lstdc++"
	elif test "x$WITH_SILO_BACKEND" = "xstandard"
	then
		WITH_SILO_LIBS="-lsilo -lz"
	fi
fi
if test "x$WITH_GSL_LIBS" = "xauto"
then
	if test "x$WITH_GSL_PREFIX" = "xauto"
	then
		if test "x$WITH_GSL_BIN_DIR" = "xauto"
		then
			THIS_GSL_CONFIG=`gsl-config --prefix`/bin/gsl-config
		else
			THIS_GSL_CONFIG=$WITH_GSL_BIN_DIR/gsl-config
		fi
	else
		if test "x$WITH_GSL_BIN_DIR" = "xauto"
		then
			THIS_GSL_CONFIG=$WITH_GSL_PREFIX/bin/gsl-config
		else
			THIS_GSL_CONFIG=$WITH_GSL_BIN_DIR/gsl-config
		fi
	fi
	if test -x $THIS_GSL_CONFIG
	then
		WITH_GSL_LIBS=`$THIS_GSL_CONFIG --libs`
	else
		$ECHO "Error: $THIS_GSL_CONFIG is not available"
		exit 1
	fi
fi

# Now lets actually do something.

# Say hello
$ECHO "Configuring $PACKAGE_NAME $PACKAGE_VERSION_MAJOR.$PACKAGE_VERSION_MINOR.$PACKAGE_VERSION_MICRO" | tee config.log

# Generate Makefile.config
$ECHO -ne "\to generating \`Makefile.config'... " | tee -a config.log
$ECHO "# Makefile.config generated from Makefile.config.in by configure" > Makefile.config
$ECHO "" >> Makefile.config
cat Makefile.config.in >> Makefile.config
sed -i.bak s@__PREFIX__@$PREFIX@ Makefile.config
sed -i.bak s@__EPREFIX__@$EPREFIX@ Makefile.config
sed -i.bak s@__BINDIR__@$BINDIR@ Makefile.config
sed -i.bak s/__TOOLCHAIN__/$TOOLCHAIN/ Makefile.config
if test "x$WITH_OPENMP" = "xtrue"
then
	sed -i.bak s/__WITH_OPENMP__/true/ Makefile.config
else
	sed -i.bak s/__WITH_OPENMP__/false/ Makefile.config
fi
if test "x$WITH_MPI" = "xtrue"
then
	sed -i.bak s/__WITH_MPI__/true/ Makefile.config
	sed -i.bak s@__MPICC__@$MPICC@ Makefile.config
	sed -i.bak s@__WITH_MPI_BIN_DIR__@$WITH_MPI_BIN_DIR@ Makefile.config
else
	sed -i.bak s/__WITH_MPI__/false/ Makefile.config
	sed -i.bak s@__MPICC__@@ Makefile.config
fi
if test "x$WITH_SPRNG" = "xtrue"
then
	sed -i.bak s/__WITH_SPRNG__/true/ Makefile.config
else
	sed -i.bak s/__WITH_SPRNG__/false/ Makefile.config
fi
if test "x$WITH_SILO" = "xtrue"
then
	sed -i.bak s/__WITH_SILO__/true/ Makefile.config
else
	sed -i.bak s/__WITH_SILO__/false/ Makefile.config
fi
if test "x$WITH_HDF5" = "xtrue"
then
	sed -i.bak s/__WITH_HDF5__/true/ Makefile.config
else
	sed -i.bak s/__WITH_HDF5__/false/ Makefile.config
fi
if test "x$WITH_MPITRACE" = "xtrue"
then
	sed -i.bak s/__WITH_MPITRACE__/true/ Makefile.config
else
	sed -i.bak s/__WITH_MPITRACE__/false/ Makefile.config
fi
if test "x$ENABLE_DEBUG" = "xtrue"
then
	sed -i.bak s/__ENABLE_DEBUG__/true/ Makefile.config
else
	sed -i.bak s/__ENABLE_DEBUG__/false/ Makefile.config
fi
if test "x$ENABLE_DOUBLE" = "xtrue"
then
	sed -i.bak s/__ENABLE_DOUBLE__/true/ Makefile.config
else
	sed -i.bak s/__ENABLE_DOUBLE__/false/ Makefile.config
fi
if test "x$ENABLE_PROFILE" = "xtrue"
then
	sed -i.bak s/__ENABLE_PROFILE__/true/ Makefile.config
else
	sed -i.bak s/__ENABLE_PROFILE__/false/ Makefile.config
fi
sed -i.bak -e "s@__WITH_FFT__@$WITH_FFT@" Makefile.config
sed -i.bak -e "s@__CC__@$CC@" Makefile.config
sed -i.bak -e "s@__CFLAGS__@$CFLAGS@" Makefile.config
sed -i.bak -e "s@__CPPFLAGS__@$CPPFLAGS@" Makefile.config
sed -i.bak -e "s@__DEPCC__@$DEPCC@" Makefile.config
sed -i.bak -e "s@__LD__@$LD@" Makefile.config
sed -i.bak -e "s@__LDFLAGS__@$LDFLAGS@" Makefile.config
sed -i.bak -e "s@__AR__@$AR@" Makefile.config
sed -i.bak -e "s@__MAKE__@$MAKE@" Makefile.config
sed -i.bak -e "s@__WITH_SPRNG_PREFIX__@$WITH_SPRNG_PREFIX@" Makefile.config
sed -i.bak -e "s@__WITH_SPRNG_INC_DIR__@$WITH_SPRNG_INC_DIR@" Makefile.config
sed -i.bak -e "s@__WITH_SPRNG_LIB_DIR__@$WITH_SPRNG_LIB_DIR@" Makefile.config
sed -i.bak -e "s@__WITH_SPRNG_LIBS__@$WITH_SPRNG_LIBS@" Makefile.config
sed -i.bak -e "s@__WITH_FFT_PREFIX__@$WITH_FFT_PREFIX@" Makefile.config
sed -i.bak -e "s@__WITH_FFT_INC_DIR__@$WITH_FFT_INC_DIR@" Makefile.config
sed -i.bak -e "s@__WITH_FFT_LIB_DIR__@$WITH_FFT_LIB_DIR@" Makefile.config
sed -i.bak -e "s@__WITH_FFT_LIBS__@$WITH_FFT_LIBS@" Makefile.config
sed -i.bak -e "s@__WITH_SILO_PREFIX__@$WITH_SILO_PREFIX@" Makefile.config
sed -i.bak -e "s@__WITH_SILO_INC_DIR__@$WITH_SILO_INC_DIR@" Makefile.config
sed -i.bak -e "s@__WITH_SILO_LIB_DIR__@$WITH_SILO_LIB_DIR@" Makefile.config
sed -i.bak -e "s@__WITH_SILO_LIBS__@$WITH_SILO_LIBS@" Makefile.config
sed -i.bak -e "s@__WITH_HDF5_PREFIX__@$WITH_HDF5_PREFIX@" Makefile.config
sed -i.bak -e "s@__WITH_HDF5_INC_DIR__@$WITH_HDF5_INC_DIR@" Makefile.config
sed -i.bak -e "s@__WITH_HDF5_LIB_DIR__@$WITH_HDF5_LIB_DIR@" Makefile.config
sed -i.bak -e "s@__WITH_HDF5_LIBS__@$WITH_HDF5_LIBS@" Makefile.config
sed -i.bak -e "s@__WITH_GSL_PREFIX__@$WITH_GSL_PREFIX@" Makefile.config
sed -i.bak -e "s@__WITH_GSL_INC_DIR__@$WITH_GSL_INC_DIR@" Makefile.config
sed -i.bak -e "s@__WITH_GSL_LIB_DIR__@$WITH_GSL_LIB_DIR@" Makefile.config
sed -i.bak -e "s@__WITH_GSL_LIBS__@$WITH_GSL_LIBS@" Makefile.config
sed -i.bak -e "s@__WITH_MPITRACE_DIR__@$WITH_MPITRACE_DIR@" Makefile.config
$ECHO "done" | tee -a config.log
rm -f Makefile.config.bak


# Generate config.h
$ECHO -ne "\to generating \`config.h'... " | tee -a config.log
$ECHO "/* config.h generated from config.h.in by configure */" > config.h
$ECHO "" >> config.h
cat config.h.in >> config.h
if test "x$WITH_OPENMP" = "xtrue"
then
	sed -i.bak -e 's/#undef WITH_OPENMP/#define WITH_OPENMP 1/' config.h
fi
if test "x$WITH_MPI" = "xtrue"
then
	sed -i.bak -e 's/#undef WITH_MPI$/#define WITH_MPI 1/' config.h
fi
if test "x$WITH_SPRNG" = "xtrue"
then
	sed -i.bak -e 's/#undef WITH_SPRNG/#define WITH_SPRNG 1/' config.h
fi
if test "x$WITH_FFT" = "xfftw2"
then
	sed -i.bak -e 's/#undef WITH_FFT_FFTW2/#define WITH_FFT_FFTW2 1/' config.h
elif test "x$WITH_FFT" = "xfftw3"
then
	sed -i.bak -e 's/#undef WITH_FFT_FFTW3/#define WITH_FFT_FFTW3 1/' config.h
fi
if test "x$WITH_SILO" = "xtrue"
then
	sed -i.bak -e 's/#undef WITH_SILO/#define WITH_SILO 1/' config.h
fi
if test "x$WITH_HDF5" = "xtrue"
then
	sed -i.bak -e 's/#undef WITH_HDF5/#define WITH_HDF5 1/' config.h
fi
if test "x$WITH_MPITRACE" = "xtrue"
then
	sed -i.bak -e 's/undef WITH_MPITRACE/define WITH_MPITRACE 1/' config.h
fi
if test "x$WITH_PROC_DIR" = "xtrue"
then
	sed -i.bak -e 's/undef WITH_PROC_DIR/define WITH_PROC_DIR 1/' config.h
fi
if test "x$ENABLE_DOUBLE" = "xtrue"
then
	sed -i.bak -e 's/undef ENABLE_DOUBLE/define ENABLE_DOUBLE 1/' config.h
fi
if test "x$ENABLE_WRITING" = "xtrue"
then
	sed -i.bak -e 's/undef ENABLE_WRITING/define ENABLE_WRITING 1/' config.h
fi
if test "x$ENABLE_DEBUG" = "xtrue"
then
	sed -i.bak -e 's/undef ENABLE_DEBUG/define ENABLE_DEBUG 1/' config.h
fi
sed -i.bak -e "s@__NDIM_VALUE__@$NDIM_VALUE@" config.h
$ECHO "done" | tee -a config.log
rm -f config.h.bak

# Enforce a re-evaluation of the depencies by deleting all .d files
find src -name \*.d -exec rm {} +
find src -name \*.d.\* -exec rm {} +
find tools -name \*.d -exec rm {} +
find tools -name \*.d.\* -exec rm {} +

# Summarize the configuration
#   This will also generate a file named summary.PID which will then be
#   used to generate a static string usable from within the code to
#   print the compilation configuration summary during runtime.
$ECHO "" | tee -a config.log
$ECHO "Summary" | tee -a config.log | tee summary.$$
$ECHO -e "\to features in use/code properties:" \
	| tee -a config.log \
	| tee -a summary.$$
grep '#define' config.h \
	| grep -v CONFIG_H \
	| grep -v CONFIG_SUMMARY_STRING \
	| awk '{print "\t\t"$2"\t"$3}' \
	| tee -a config.log \
	| tee -a summary.$$

$ECHO -e "\to features NOT in use:" \
	| tee -a config.log \
	| tee -a summary.$$
grep '#undef' config.h \
	| awk '{print "\t\t"$2}' \
	| tee -a config.log \
	| tee -a summary.$$

$ECHO -e "\to programs and program options:" \
	| tee -a config.log \
	| tee -a summary.$$
cat <<_BLA_EOF >> bla.$$
include Makefile.config

.PHONY: check

check:
	@$ECHO -e "\t\tCC       = \$(CC)"
	@$ECHO -e "\t\tMPICC    = \$(MPICC)"
	@$ECHO -e "\t\tCFLAGS   = \$(CFLAGS)"
	@$ECHO -e "\t\tCPPFLAGS = \$(CPPFLAGS)"
	@$ECHO -e "\t\tDEPCC    = \$(DEPCC)"
	@$ECHO -e "\t\tLD       = \$(LD)"
	@$ECHO -e "\t\tLDFLAGS  = \$(LDFLAGS)"
	@$ECHO -e "\t\tLIBS     = \$(LIBS)"
	@$ECHO -e "\t\tAR       = \$(AR)"
	@$ECHO -e "\t\tMAKE     = \$(MAKE)"
_BLA_EOF
make -f bla.$$ check | tee -a config.log | tee -a summary.$$
rm -f bla.$$

cat summary.$$ \
	| sed -e 's/$/\\n/' -e 's/\t/\\t/g' \
	| tr -d '\n' \
	| sed -e 's/\\/\\\\/g' \
	> bla.$$
sed -i.bak -e "s@__SUMMARYSTRING__@`cat bla.$$`@" config.h
rm -f config.h.bak
rm -f summary.$$ bla.$$

# Now we are done
$ECHO ""
cat <<_END_EOF
To build $PACKAGE_NAME, run \`make all'.
To generate the code documention execute \`make doc'.

Have a lot of fun!
_END_EOF