#!/usr/bin/env modbuild

pbuild::set_download_url "http://amas.web.psi.ch/Downloads/$P/$P-$V.tar.bz2"
pbuild::add_to_group 'Compiler'

pbuild::post_prep() {
	./autogen.sh
}

pbuild::post_install() {
	# Unfortunatelly we need some fancy post-installation.
	# Otherwise it wouldn't be possible to load the modules
	# for H5root and OPAL at the same time. The problem is
	# the JIT compiler of ROOT and the fact, that we need
	# a serial HDF5 for H5root but a parallel for OPAL.
	#
	# Since ROOT's JIT compiler uses the environment variable
	# CPLUS_INCLUDE_PATH to search for header files, the 
	# content of it is cruciale. In other words: it must be 
	# guaranteed that the header files of the serial compiled
	# HDF5 are used by ROOT's JIT compiler. Since we have no
	# influence on the order he modules are loaded, we cannot
	# guarantee this without checking and - if required - 
	# changing the search path. 
	#
	# The simplest solution for this problem is to install
	# all required header files of HDF5 and H5hut into the
	# include directory of the H5root module and to use a
	# wrapper script to set the right search path.
	
	# rename H5root binary, this will be called by a wrapper
	# script.
	mv "${PREFIX}/bin/H5root" "${PREFIX}/bin/H5root.bin"

	# install wrapper script and set the right paths
	local sed_cmd="s:@PREFIX@:${PREFIX}:g;"
	sed_cmd+="s:@HDF5_PREFIX@:${HDF5_SERIAL_PREFIX}:g;"
	sed_cmd+="s:@ROOT_PREFIX@:${ROOT_PREFIX}:g;"
	sed "${sed_cmd}" "${BUILDBLOCK_DIR}/${V_MAJOR}/H5root" > "${PREFIX}/bin/H5root"
	chmod 0755 "${PREFIX}/bin/H5root"

	# install serial HDF5 and H5hut header files
	cp -av "${HDF5_SERIAL_INCLUDE_DIR}/"*	"${PREFIX}/include/"
	cp -av "${H5HUT_INCLUDE_DIR}/"*		"${PREFIX}/include/"
}