#!/bin/sh
#-----------------------------------------------------------------------
# Configure site-specific make files.
#
# This script may be run any number of times.
#-----------------------------------------------------------------------
# Usage:
#
#  ./configure system_name
#
# Where system_name must be one of the following:
#  sun4-gcc  -  Sun sparc running SUNOS4.* using gcc.
#                NB. If your gcc runtime library is not installed
#                in a directory below /usr/local/lib/gcc-lib/ you should
#                change CCLIB in the sun4-gcc case below.
#  sol2-gcc  -  Sun sparc running Solaris 2.* using gcc.
#                NB. If your gcc runtime library is not installed
#                in a directory below /usr/local/lib/gcc-lib/ you should
#                change CCLIB in the sol2-gcc case below.
#  sol2-cc   -  Sun Sparc running Solaris 2.* using the SUN ANSI cc
#               compiler.
#  hppa-c89  -  HP9000 700 or 800 series workstations using c89.
#  IBM-c89   -  IBM 6xxx series workstations using c89.
#  alpha-osf1-gcc - Alpha AXP running OSF1, using the Gnu C compiler, gcc.
#  alpha-osf1-cc  - Alpha AXP running OSF1, using the native DEC C compiler.
#  linux-i486-gcc - I486 PC running Linux, using the Gnu C compiler, gcc.
#-----------------------------------------------------------------------

# The following shell-variable assignments probably require modification.
# To do this, read the information preceding each assignment and modify
# the text on the right-hand-side of assignments that need to be changed.
#
# NOTE that the Bourne-shell will not tolerate any space around the '='
# character in shell-variable assignments.

# The directory that difmap looks in for HELP files is set at compile time.
# This means that if you change the location of the help files at any time,
# then you will also have to re-compile difmap. So it is important to
# decide now where you are going to put the help files, and to then
# write the name of the directory below. The chosen directory should
# be visible to all users wanting to use difmap. You must copy the
# help files there yourself, as demonstrated in the README file. The
# default location given below is the directory in which the help
# files reside in in the distribution. If this is OK, then you need
# take no further action, but remember not to delete the distribution
# in this case.

HELPDIR="`pwd`/help"

# If you don't want the difmap executable to initially be placed in the
# current directory, specify the required directory below. Given that
# the executable can be moved at any time, this is not a critical
# choice. My recommendation is that you leave the following assignment
# unchanged for now and simply copy the executable from the current
# directory to its final installation directory later.

BINDIR="`pwd`"

# Specify the PGPLOT and X11 libraries in a form suitable for the
# linker. If the libraries are in a location that is normally searched
# by the linker then all that you will need to write is:
#
#  PGPLOT_LIB="-lpgplot -lX11"
#
# Otherwise you must precede each library with a -L argument to
# specify the directory in which each library resides. For example
# under SunOS this might be:
#

PGPLOT_LIB="-L/scisoft/pgplot -lpgplot -L/usr/X11R6/lib -lX11"

#
# Under Solaris 2.x there is a complication in that when programs are
# linked with shared libraries, as they are by default, the path used
# to locate the libraries at compile time is not remembered at run
# time. To cater for shared libraries you either have to specify the
# run-time library path with the -R flag, or you have to require your
# users to specify the directories in their LD_LIBRARY_PATH environment
# variables. The former is obviously friendlier. An example of using
# the -R flag is:
#
# PGPLOT_LIB="-L/usr/local/pgplot -L/usr/openwin/lib \
#     -R/usr/local/pgplot:/usr/openwin/lib:/opt/SUNWspro/lib -lpgplot -lX11"
# 
# Where /usr/local/pgplot and /opt/SUNWspro/lib are the directories that
# contain the PGPLOT and FORTRAN libraries at our site.

#### PGPLOT_LIB="-lpgplot -lX11"

#-----------------------------------------------------------------------
# I recommend that you don't change anything below this point.
#-----------------------------------------------------------------------
INCDIR="`pwd`/include"
LIBDIR="`pwd`/lib"

#-----------------------------------------------------------------------
#  THE FOLLOWING ARE DEFAULTS WHICH ARE OVERRIDEN LATER FOR YOUR OS.
#                 DO NOT CHANGE THESE.
#-----------------------------------------------------------------------
# The following is the default set of options. After this list are
# instructions on how to override the default for a specific system.

# The default ANSI-C compiler and the flags that should be presented to it.

CC="cc"
CFLAGS="-O"

# The default FORTRAN compiler (the same one that PGPLOT was compiled with).
# Also the flags that should be presented to it.

FC="f77"
FFLAGS="-O"

# If the C run-time library is not automatically linked in when using
# the FORTRAN compiler to link, cite the name of the library(ies) here.
# The default shown here names the latest version of the gcc run-time
# library.

CCLIB=""

# Flags to be sent to the loader (linker).

LDFLAGS=""

# The way to create a symbolic or (if symbolic links are not supported)
# a hard link to a file.

LN="ln -s"

# How to run ranlib.

RANLIB="ranlib"

# The default pager.

PAGER="more"

# Flags for the cpg_src/pgbind command that tell it how to construct
# C wrappers for FORTRAN PGPLOT routines.

PGBIND_FLAGS="bsd"

#-----------------------------------------------------------------------
# OVERRIDE SELECTED OPTIONS FOR THE GIVEN OS.
# When compiling for a new OS-compiler combination, add a new
#  OS-compiler)
# case in the switch below and redefine any variables for which the default
# is inappropriate.
#-----------------------------------------------------------------------

# Get the operating system name from the command line.

if test $# -lt 1;then
  echo "Usage: configure OS_name-compiler_name"
  exit 1
else
  OS=$1
fi

# Override selected options for the given operating system-compiler
# pair.

case $OS in
  sun4-gcc)   # SUN-Sparc running SUNOS4.*, using the gcc compiler.
    CC=gcc
#
# Attempt to find libgcc.a.
#
    CCLIB="`gcc -print-libgcc-file-name`"
    if test ! -f "$CCLIB"; then
      echo ' Error: libgcc.a is not in the default location. Please edit'
      echo '        ./configure to assign the path of libgcc.a to CCLIB under'
      echo '         sun4-gcc), Eg. if libgcc.a is in /usr/local/lib. write:'
      echo ' ';echo ' CCLIB="/usr/local/lib/libgcc.a"';echo ' '
      exit 1
    fi
;;

  sol2-gcc)  # SUN running Solaris2.* using gcc.
    CC="gcc"
    FC="f77"
#
# Attempt to find libgcc.a.
#
    CCLIB="`gcc -print-libgcc-file-name`"
    if test ! -f "$CCLIB"; then
      echo ' Error: libgcc.a is not in the default location, please edit'
      echo '        ./configure to assign the path of libgcc.a to CCLIB under'
      echo '         sol2-gcc), Eg. if libgcc.a is in /usr/local/lib. write:'
      echo ' ';echo ' CCLIB="/usr/local/lib/libgcc.a"';echo ' '
      exit 1
    fi
    RANLIB="echo ranlib"
    PGPLOT_LIB="${PGPLOT_LIB} -lsocket -lnsl"
;;

  sol2-cc)  # SUN running Solaris 2.* using the new SUN ANSI C compiler, cc.
    CC="cc"
    FC="f77"
    RANLIB="echo ranlib"
    PGPLOT_LIB="${PGPLOT_LIB} -lsocket -lnsl"
;;

  hppa-c89)   # HP9000-series 700-800, using the vendor's c89 compiler.
    CC="c89"
    FC="fort77"
    CFLAGS="$CFLAGS -D_HPUX_SOURCE -Dhpux -z"
    RANLIB="echo ranlib"
    PGBIND_FLAGS="bsd -suffix ''"
;;

  IBM-c89)   # IBM 6xxx using the vendor's c89 compiler.
    CC="c89"
    FC="xlf"
    CFLAGS="$CFLAGS -Dibm_aix"
    RANLIB="echo ranlib"
    PGBIND_FLAGS="bsd -suffix ''"
;;

  alpha-osf1-gcc)   # Alpha AXP running OSF1, using the gcc compiler.
    CC=gcc
#
# Attempt to find libgcc.a.
#
    CCLIB="`gcc -print-libgcc-file-name`"
    if test ! -f "$CCLIB"; then
      echo ' Error: libgcc.a is not in the default location, please edit'
      echo '        ./configure to assign the path of libgcc.a to CCLIB under'
      echo '        alpha-osf1-gcc), Eg. if libgcc.a is in /usr/local/lib.'
      echo '        write:'
      echo ' ';echo ' CCLIB="/usr/local/lib/libgcc.a"';echo ' '
      exit 1
    fi
;;

  alpha-osf1-cc)   # Alpha AXP running OSF1, using the native DEC cc compiler.
    CC=cc
    CFLAGS="$CFLAGS -std1 -D__alpha__"
;;

  linux-i486-gcc)   # I486 PC running Linux, using the Gnu C compiler, gcc.
    CC=gcc
    CFLAGS="$CFLAGS -Dlinux_i486_gcc"
#
# Attempt to find libgcc.a in its default location.
#
    CCLIB="`gcc -print-libgcc-file-name`"
    if test ! -f "$CCLIB"; then
      echo ' Error: libgcc.a is not in the default location, please edit'
      echo '        ./configure to assign the path of libgcc.a to CCLIB under'
      echo '        linux-i486-gcc), Eg. if libgcc.a is in /usr/local/lib.'
      echo '        write:'
      echo ' ';echo ' CCLIB="/usr/local/lib/libgcc.a"';echo ' '
      exit 1
    fi
;;

  *)
    echo "Unknown OS-compiler combination: $OS"
    exit 1
;;
esac


#-----------------------------------------------------------------------
# You should not have to change anything below this line.
#-----------------------------------------------------------------------

# Keep the user informed.

echo 'Configuration follows:'
echo ' BINDIR       =' $BINDIR
echo ' INCDIR       =' $INCDIR
echo ' LIBDIR       =' $LIBDIR
echo ' HELPDIR      =' $HELPDIR
echo ' PGPLOT_LIB   =' $PGPLOT_LIB
echo ' CC           =' $CC
echo ' CCLIB        =' $CCLIB
echo ' FC           =' $FC
echo ' CFLAGS       =' $CFLAGS
echo ' FFLAGS       =' $FFLAGS
echo ' LDFLAGS      =' $LDFLAGS
echo ' LN           =' $LN
echo ' RANLIB       =' $RANLIB
echo ' PAGER        =' $PAGER
echo ' PGBIND_FLAGS =' $PGBIND_FLAGS
echo ' '


# Create the makefile header.

cat > make.configure << EOF
# Copyright (c) 1993 by the California Institute of Technology.

# ANSI-C compiler.

CC = $CC

# ANSI-C run-time library

CCLIB = $CCLIB

# FORTRAN compiler.

FC = $FC

# C and FORTRAN compilation flags.

CFLAGS = $CFLAGS
FFLAGS = $FFLAGS

# Directory for executables.

BINDIR = $BINDIR

# Directory for includes.

INCDIR = $INCDIR

# Directory for libraries.

LIBDIR = $LIBDIR

# Directory of help files.

HELPDIR = $HELPDIR

# Directory in which the PGPLOT library can be found.

PGPLOT_LIB = $PGPLOT_LIB

# Loader flags.

LDFLAGS = $LDFLAGS

# Symbolic link creation.

LN = $LN

# The way to invoke ranlib.

RANLIB = $RANLIB

# The default pager.

PAGER = $PAGER

# The flags used by cpg_src/pgbind.

PGBIND_FLAGS = $PGBIND_FLAGS

EOF

# Create include and library directories if not already there.

if test ! -d include; then
  mkdir include
fi

if test ! -d lib; then
  mkdir lib
fi

# Create site-specific make files in each of the source directories.

echo 'Configuring make files.'
echo ' '

cat make.configure cpg_src/makefile.lis cpg_src/makefile.distrib > cpg_src/makefile
cat make.configure sphere_src/makefile.distrib > sphere_src/makefile
cat make.configure difmap_src/makefile.distrib > difmap_src/makefile
cat make.configure logio_src/makefile.distrib > logio_src/makefile
cat make.configure pager_src/makefile.distrib > pager_src/makefile
cat make.configure recio_src/makefile.distrib > recio_src/makefile
cat make.configure scrfil_src/makefile.distrib > scrfil_src/makefile
cat make.configure fits_src/makefile.distrib > fits_src/makefile
cat make.configure slalib_src/makefile.distrib > slalib_src/makefile
\rm make.configure