# libctl: flexible Guile-based control files for scientific software
# Copyright (C) 1998, 1999, 2000, 2001, 2002, Steven G. Johnson
#
# This file may be used without restriction.  It is in the public
# domain, and is NOT restricted by the terms of any GNU license.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# Steven G. Johnson can be contacted at stevenj@alum.mit.edu.

SHELL = @SHELL@

##############################################################################

# Makefile.in for programs using libctl (assumes that autoconf is
# being used, of course).  You should only need to change the definitions
# in this section of the file.

SPECIFICATION_FILE = example.scm
PROGRAM_NAME = example

# what is printed out when invoking your program with --version:
VERSION_STRING = "example 1.0, copyright (c) 1999 by Steven G. Johnson."

# objects for program sources:
OBJECTS = example.o \
	  geom.o     # since we use the geom.scm utilities

HEADERS =            # any extra header files you are dependent on

MY_LIBS    =         # extra libs you need go here
MY_LDFLAGS =         # extra -L flags go here
MY_CPPFLAGS =        # extra -I include flags go here
MY_DEFS =            # extra -D define flags go here

# The following variables should be detected and set by autoconf:

# libctl install. dir., e.g. /usr/local/share/libctl
LIBCTL_DIR = @LIBCTL_DIR@

# gen-ctl-io program
GEN_CTL_IO = @GEN_CTL_IO@

##############################################################################
#                  don't (normally) edit past here                           #
##############################################################################

CC = @CC@
CFLAGS = @CFLAGS@
CPPFLAGS = @CPPFLAGS@ -I. $(MY_CPPFLAGS)
DEFS = @DEFS@ $(CTL_DEFS) $(MY_DEFS)

##############################################################################

LIBS = $(MY_LIBS) -lctl @LIBS@
LDFLAGS = $(MY_LDFLAGS) @LDFLAGS@

##############################################################################

INSTALL = @INSTALL@
prefix = @prefix@
# c.f. AC_ARG_PROGRAM autoconf docs:
transform=@program_transform_name@
@SET_MAKE@

##############################################################################

CTL_DEFS = -DCTL_SCM='"'$(LIBCTL_DIR)/base/ctl.scm'"' \
       -DINCLUDE_SCM='"'$(LIBCTL_DIR)/base/include.scm'"' \
          -DSPEC_SCM='"'$(prefix)/share/libctl/specs/$(SPECIFICATION_FILE)'"' \
    -DVERSION_STRING='"'$(VERSION_STRING)'"'

##############################################################################

ALL_OBJECTS = main.o ctl-io.o $(OBJECTS)

all: $(PROGRAM_NAME)

main.o: main.c ctl-io.h

ctl-io.c ctl-io.h: $(SPECIFICATION_FILE)
	$(GEN_CTL_IO) $(SPECIFICATION_FILE) $(LIBCTL_DIR)

# Some hackery follows.  The program executable needs to have the
# location of the spec file hard-coded into it.  However, we have to
# hard-code the location that the spec file *will* be in when it is
# installed...but we would still like to be able to run the program
# before installing it.  So, the actual executable is named
# .$(PROGRAM_NAME) (notice the leading dot), and $(PROGRAM_NAME) is a
# shell script that calls the executable, specifying the uninstalled
# spec file location via the --spec-file command-line argument.  'make
# install' copies the real executable and spec files into their final
# locations.

$(PROGRAM_NAME): ctl-io.h $(ALL_OBJECTS)
	$(CC) $(LDFLAGS) $(CFLAGS) $(ALL_OBJECTS) $(LIBS) -o .$@
	rm -f $@
	echo '#!/bin/sh' > $@
	echo `pwd`/.$@ --spec-file=`pwd`/$(SPECIFICATION_FILE) '$$*' >> $@
	chmod u+x $@

main.c: $(LIBCTL_DIR)/base/main.c
	cp -f $(LIBCTL_DIR)/base/main.c $@

geom.c: $(LIBCTL_DIR)/utils/geom.c
	cp -f $(LIBCTL_DIR)/utils/geom.c $@

.c.o: $(HEADERS) ctl-io.h
	$(CC) -c $(DEFS) $(CPPFLAGS) $(CFLAGS) $< -o $@

# 'make install' target.  This is supplied here so that you can easily
# copy this Makefile into your own program, but it should not be
# called for the example program included with libctl (and is not, at
# least by the top-level Makefile).  Two reasons: first, you don't
# really want to install the example program; and second, it won't
# work because LIBCTL_DIR is not set to the global (post-install)
# location of libctl.

install: $(PROGRAM_NAME)
	$(INSTALL) -d $(prefix)/bin
	$(INSTALL) -m 0755 -s .$(PROGRAM_NAME) $(prefix)/bin/`echo $(PROGRAM_NAME)|sed '$(transform)'`
	$(INSTALL) -d $(prefix)/share/libctl/specs
	$(INSTALL) -m 0644 $(SPECIFICATION_FILE) $(prefix)/share/libctl/specs

clean:
	rm -f $(ALL_OBJECTS) ctl-io.c ctl-io.h main.c geom.c \
              .$(PROGRAM_NAME) $(PROGRAM_NAME) core
