#
# @configure_input@
#
# Instructions for configuring an fptools package.
#
# There are two ways you can get started with an fptools package, either
# by using the unpacked distribution tree in-situ or by installing the
# package.
#
# Using the package directly is easy, just do `make config'. (The
# distribution will *not* work straight out of the box, you'll have to do
# this first)
#
# To install the package, you'll have to set one or more of the
# following variables:
#
#  * bindir 
#     path to directory of where you want the executables
#     to be installed.
#  * libdir
#     where you want the library archives to go.
#     Note, if you specify /usr/foo/lib for libdir,
#     the library files for your fptools package will be
#     installed in  /usr/foo/lib/<package>-<version>, e.g.,
#     /usr/foo/lib/ghc-2.02. If you don't want the package/version
#     directory appended, you'll have to modify $(real_libdir)
#     below.
#
#  * datadir
#     path to where the platform-independent files will go.
#     As for libdir, the effective path for the platform-indep
#     stuff is $(datadir)/<package>-<version>. If you want
#     complete control, see $(real_datadir)
#
#  * platform 
#     the platform you're installing for. The configure script
#     makes an educated guess, so you'll only have to set this
#     if it clashes with your reality, I guess.
#
#  * htmldir
#     where to install the documentation HTML files.
#  * dvidir
#     where to install the DVI files.
#  * infodir
#     where to install the Emacs info files
#
# Installing the documentation is not done as part of the `install' rule, but
# via `install-docs' (or if you want to be selective: `install-html', `install-dvi'
# and `install-info').
#
# For more complete instructions, consult the INSTALL file
# that came with the bundle, and/or consult the installation
# documentation in one of the document directories.
#
# Please report any bugs, problems etc. with installing and using this bundle
# Makefile setup to glasgow-haskell-bugs@dcs.gla.ac.uk
# 

# Where the different pieces of the bundle should go:
bindir      = @bindir@
libdir      = @libdir@
datadir     = @datadir@

platform    = @TargetPlatform@
prefix      = @prefix@
exec_prefix = @exec_prefix@

# default
infodir   = $(datadir)
htmldir   = $(datadir)
dvidir    = $(datadir)

#
# Putting the package stuff in package-specific
# directories:
#
real_libdir      = $(libdir)/$(package)-$(version)
real_datadir     = $(datadir)/$(package)-$(version)

package     = ghc
version     = 2.02
PERL        = @PerlCmd@
RM          = rm -f
MV          = mv
CP          = cp -f
LN_S        = @LN_S@
CHMOD       = chmod
INSTALL	    = @INSTALL@
# sigh
INSTALL_DIR  = ./mkdirhier

#
# Set of package scripts for which you'd like a name-<version> symlink
# to be created, i.e., create a symlink, ghc-2.02, pointing to ghc to
# avoid version vertigo.
#
VERSION_SYMLINKS_FOR=ghc

#
# List of files in bin directory that need to have
# local setup/install information prepended.
#
PACKAGE_SCRIPTS=ghc stat2resid hstags mkdependHS
PACKAGE_LIB_SCRIPTS=hscpp

# Binaries to install
PACKAGE_BINS=$(PACKAGE_SCRIPTS) hp2ps

#----------end of user-serviceable parts------------
#
#
# How to install the different pieces
# 
INSTALL_BIN  = $(INSTALL) $(INSTALL_BIN_OPTS)
INSTALL_LIB  = $(INSTALL) $(INSTALL_LIB_OPTS)
INSTALL_DATA = $(INSTALL) $(INSTALL_DATA_OPTS)

# What's common to all installs
INSTALL_OPTS= $(EXTRA_INSTALL_OPTS)

BIN_PERMS = 755
LIB_PERMS = 644

INSTALL_BIN_OPTS  = -m $(BIN_PERMS) $(INSTALL_OPTS) $(EXTRA_INSTALL_BIN_OPTS)
INSTALL_LIB_OPTS  = -m $(LIB_PERMS) $(INSTALL_OPTS) $(EXTRA_INSTALL_LIB_OPTS)
INSTALL_DATA_OPTS = -m $(LIB_PERMS) $(INSTALL_OPTS) $(EXTRA_INSTALL_DATA_OPTS)

.PHONY: in-place config-pkgs mk-version-symlinks install-dirs install

config-pkgs ::
	@echo "Configuring $(package), version $(version), on $(platform) ..."
	$(RM) bin/$(platform)/$(package)-$(version)/$(package)-$(version)
	@for i in $(PACKAGE_SCRIPTS); do \
	   echo "Creating a configured version of $$i .."; \
	   $(RM) bin/$(platform)/$(package)-$(version)/$$i.bak; \
	   test -f bin/$(platform)/$(package)-$(version)/$$i && $(MV) bin/$(platform)/$(package)-$(version)/$$i bin/$(platform)/$(package)-$(version)/$$i.bak; \
	   echo "eval 'exec $(PERL) -S $$$""0 $$""{1+\"$$$""@\"}'"         > bin/$(platform)/$(package)-$(version)/$$i; \
	   echo "      if $$""running_under_some_shell;"                  >> bin/$(platform)/$(package)-$(version)/$$i; \
	   echo $$"bindir='$(bindir)';"                                   >> bin/$(platform)/$(package)-$(version)/$$i; \
	   echo $$"libdir='$(real_libdir)';"                              >> bin/$(platform)/$(package)-$(version)/$$i; \
	   echo $$"datadir='$(real_datadir)';"                            >> bin/$(platform)/$(package)-$(version)/$$i; \
	   cat bin/$(platform)/$(package)-$(version)/$$i.prl              >> bin/$(platform)/$(package)-$(version)/$$i; \
	   $(CHMOD) $(BIN_PERMS) bin/$(platform)/$(package)-$(version)/$$i; \
	   echo "Done."; \
	done
	@for i in $(PACKAGE_LIB_SCRIPTS); do \
	   echo "Creating a configured version of $$i .."; \
	   $(RM) lib/$(platform)/$(package)-$(version)/$$i.bak; \
	   test -f lib/$(platform)/$(package)-$(version)/$$i && $(MV) lib/$(platform)/$(package)-$(version)/$$i lib/$(platform)/$(package)-$(version)/$$i.bak; \
	   echo "eval 'exec $(PERL) -S $$$""0 $$""{1+\"$$$""@\"}'"         > lib/$(platform)/$(package)-$(version)/$$i; \
	   echo "      if $$""running_under_some_shell;"                  >> lib/$(platform)/$(package)-$(version)/$$i; \
	   echo $$"bindir='$(bindir)';"                                   >> lib/$(platform)/$(package)-$(version)/$$i; \
	   echo $$"libdir='$(real_libdir)';"                              >> lib/$(platform)/$(package)-$(version)/$$i; \
	   echo $$"datadir='$(real_datadir)';"                            >> lib/$(platform)/$(package)-$(version)/$$i; \
	   cat lib/$(platform)/$(package)-$(version)/$$i.prl              >> lib/$(platform)/$(package)-$(version)/$$i; \
	   $(CHMOD) $(BIN_PERMS) lib/$(platform)/$(package)-$(version)/$$i; \
	   echo "Done."; \
	done

#
# The vaguely funky eval 'exec ...' echo line above *might* be
# a tad too much for some `make's - here's what it should return
# if all is well:
#
#   eval 'exec /installed/path/for/perl -S $0 ${1+"$@"}'
#         if $running_under_some_shell;
#

mk-version-symlinks ::
	@for i in $(VERSION_SYMLINKS_FOR) ""; do \
	  if [ "x$$i" != "x" ]; then \
	     echo "Symlinking $$i to $$i-$(version)"; \
	     (cd bin/$(platform)/$(package)-$(version); $(RM) $$i-$(version); $(LN_S) $$i $$i-$(version) ); \
	  fi;\
	done

in-place ::
	$(MAKE) $(MFLAGS) config-pkgs bindir=`pwd`/bin/$(platform)/$(package)-$(version) libdir=`pwd`/lib/$(platform) datadir=`pwd`/share/$(package)-$(version)
	$(MAKE) $(MFLAGS) mk-version-symlinks
	@echo "Finished configuring..to use, add `pwd`/bin/$(platform)/$(package)-$(version) to your PATH."

install-dirs ::
	$(INSTALL_DIR) $(bindir)
	(cd lib/$(platform)/$(package)-$(version); find . -type d -exec sh -c '../../../$(INSTALL_DIR) $$0 $(real_libdir)/$$0' {} \; )
	(cd share/$(package)-$(version); find . -type d -exec sh -c '../../$(INSTALL_DIR) $$0 $(real_datadir)/$$0' {} \; )

install :: config-pkgs mk-version-symlinks install-dirs install-bin install-libs install-datas

.PHONY: install-bin install-libs install-datas

install-bin:
	for i in $(PACKAGE_BINS); do \
	   $(INSTALL_BIN) bin/$(platform)/$(package)-$(version)/$$i $(bindir); \
	done;
	for i in $(VERSION_SYMLINKS_FOR) ""; do \
	   if [ "x$$i" != "x" ]; then \
	   	( cd $(bindir); $(LN_S) $$i $$i-$(version) ); \
	   fi; \
	done


install-libs:
	(cd lib/$(platform)/$(package)-$(version); find . -type f -exec sh -c '$(CP) $$0 $(real_libdir)/$$0' {} \; )

install-datas:
	(cd share/$(package)-$(version); find . -type f -exec sh -c '$(INSTALL_DATA) $$0 $(real_datadir)/$$0' {} \; )

show-install-setup:
	@echo "Install setup..."
	@echo "bindir  = $(bindir)"
	@echo "libdir  = $(libdir) (real_libdir  = $(real_libdir))"
	@echo "datadir = $(datadir) (real_datadir = $(real_datadir))"

#
# Documentation targets, install-docs for the whole lot, or
# install-{dvi,html,info}
#

.PHONY: show-install-setup install-docs install-html install-info install-dirs-dvi install-dirs-html install-dirs-info

install-docs : install-html install-dvi install-info

install-dvi: install-dirs-dvi
	$(INSTALL_DATA) dvi/$(package)-$(version)/* $(dvidir)

install-info: install-dirs-info
	$(INSTALL_DATA) info/$(package)-$(version)/* $(infodir)

install-html: install-dirs-html
	$(INSTALL_DATA) html/$(package)-$(version)/* $(htmldir)

install-dirs-html:
	$(INSTALL_DIR) $(htmldir) 

install-dirs-info:
	$(INSTALL_DIR) $(infodir) 

install-dirs-dvi:
	$(INSTALL_DIR) $(dvidir) 

