#
# Compilation makefile of CERN FLUKA (binary distribution)
#
# author: Luigi.Salvatore.Esposito@cern.ch
# date:   22.08.2019
#
FLUKA    := $(dir $(shell pwd))

NAME     := fluka

EXEC     := ${FLUKA}/bin/${NAME}
EXECDPM  := ${FLUKA}/bin/${NAME}dpm

SUBDIRS  := tools

include config.mk
include rules.mk

EXECS    := ${EXEC}
ifneq (${DPM}, no)
	EXECS += ${EXECDPM}
endif

# Interface object files for RQMD/DPMET are returned by fluka-config
# This way an error is raised at compilation if any of those files
# is accidentaly missing
CONFIG=${FLUKA}/bin/fluka-config
INTOBJS=$(shell ${CONFIG} --intobjs)

# ******* TARGETS ********
.PHONY: all clean

all: ${EXECS} tools

# Compile subdirectories
${SUBDIRS}: FORCE
	@echo
	@echo "# Compiling: $@"
	@${MAKE} -C $@ FLUKA=${FLUKA}

# make default executable
${EXEC}:
	${FC} -o $@ ${LFLAGS} -L${LIBPATH} ${LIB}
	@echo "# Created" $@

# make executable including dpmjet + rqmd
# note the order of the libraries: RQMD, FLUKA, DPMJET
${EXECDPM}:
	${FC} -o $@ ${LFLAGS} ${INTOBJS} -L${LIBPATH} ${LIBRQMD} ${LIB} ${LIBDPM}
	@echo "# Created" $@

# *****************************************************************************
# Phony targets for helping compilation
# *****************************************************************************
# Phony target to force entering in all subdirectories
.PHONY: FORCE
FORCE:

# Clean everything
.PHONY: clean
clean:
	rm -f ${EXECS}
	for d in ${SUBDIRS}; do ${MAKE} -C $$d FLUKA=${FLUKA} clean; done

.PHONY: help
help:
	@echo
	@echo "FLUKA_CERN makefile"
	@echo
	@echo "Targets:"
	@echo "  <nothing>        compile programs"
	@echo "  clean            clean up"
	@echo "  help             print this screen"
	@echo
	@echo "Options:"
#	@echo "  COMP=[clang|c++] compiler choice (Default c++)"
#	@echo "  DESTDIR=[path]   where to install (Default /usr/local/flair)"
#	@echo "  DUMP=[no|yes]    enable extra printout information (Default no)"
#	@echo "  TARGET=i386|i686|x86_64|android"
#	@echo "                   architecture to compile for (Default system depended)"
	@echo
	@echo "Systems and compiler supported:"
	@echo "  Linux            gfortran"
	@echo "  Mac OS/X         gfortran"
#	@echo "  Windows          cygwin gfortran"
	@echo
	@echo "Example:"
	@echo "  To compile the program with gfortran"
	@echo "    make"
	@echo
	@echo "Useful make options:"
	@echo "  -j nnn    To compile in parallel using (nnn) cores"
	@echo "  -B        To force recompiling everything"
	@echo
	@echo "author: Luigi.Salvatore.Esposito@cern.ch"
	@echo