Makefile.in

# This Makefile uses the GNU make convention that CAPITAL_NAMES are reserved
# for variables that are either derived from the environment or are explicitly
# set by the user during invocation.

.DEFAULT_GOAL := all

# ChaNGa source directory
source_dir := @srcdir@

# Directory from which `configure` was called.
build_dir := @builddir@

# These canned recipes allow for building different variations of source
# and destination file mappings. They can also be used by subprojects.
define compile-cxx
@ echo Compiling $*.cpp...
$(quiet) $(charmc) $(cxx_flags) $(depend_flags) $(depend_dir)/$*$(depend_suffix) -c $< -o $@
endef

define compile-c
@ echo Compiling $*.c...
$(quiet) $(charmc) $(c_flags) $(depend_flags) $(depend_dir)/$*$(depend_suffix) -c $< -o $@
endef

define link-charmc
@ echo Building $@...
$(quiet) $(charmc) -o $@ $^ $(ld_flags) $(ld_libs)
endef

# ------- Basic commands ------------------------------------------------------
AR    := @AR@
RM    := rm -f
RMR   := $(RM) -r

# ------- Verbosity -----------------------------------------------------------
charm_quiet := $(if $(filter $(CHARM_VERBOSE),1),-verbose,)
quiet       := $(if $(filter $(VERBOSE),1),,@)

# ------- Compiler setup ------------------------------------------------------
charmc      := @CHARM_PATH@/bin/charmc $(charm_quiet)
target      := $(build_dir)/ChaNGa
charmrun    := charmrun
cxx_std     := c++11
c_std       := c99
opt_flag    := -O3
target_arch := -m64
threads     := -lpthread

# ------- Debugging -----------------------------------------------------------
# -DPRINT_MERGED_TREE
# -DCOSMO_PRINT=1       # enable really verbose prints
# -DCOSMO_PRINT_BK=2    # enable verbose book-keeping prints
# -DCOSMO_DEBUG=2       # enable debugging information
# -DMCLBMSV             # Multistepping LB verbosity
# -DCOSMO_STATS=1       # enable statistics collection
# -DCHANGA_REFACTOR_WALKCHECK
# -DCHANGA_REFACTOR_WALKCHECK_INTERLIST
# -DCHANGA_REFACTOR_MEMCHECK
# -DCHANGA_REFACTOR_INTERLIST_PRINT_LIST_STATE
# -DCHANGA_REFACTOR_PRINT_INTERACTIONS
#
# Check walk correctness and trace walk for TEST_BUCKET on TEST_TP:
# -DCHANGA_REFACTOR_WALKCHECK_INTERLIST
# -DCHANGA_REFACTOR_INTERLIST_PRINT_LIST_STATE
# -DCHECK_WALK_COMPLETIONS
debug_defines =

ifeq (1,$(DEBUG))
  debug_defines   += -DCOSMO_DEBUG=2
  opt_flag        := @OPT_DEBUG@
  target          := $(target).dbg
  charmrun        := $(charmrun).dbg
endif

# Always emit debug symbols in case of core dumps
opt_flag += -g

# ------- SMP -----------------------------------------------------------------
ifeq (1,@CMK_SMP@)
	target   := $(target).smp
	charmrun := $(charmrun).smp
endif

# ------- Projections ---------------------------------------------------------
ifeq (yes,@PROJECTIONS@)
  target        := $(target).prj
  charmrun      := $(charmrun).prj
  debug_ldflags += -tracemode projections
endif

# ------- Sanitizers ----------------------------------------------------------
ifneq (no,@FLAG_SANITIZER@)
  target        := $(target).san
  charmrun      := $(charmrun).san
  debug_flags   += -fno-omit-frame-pointer -fsanitize=@FLAG_SANITIZER@
  debug_ldflags += -fsanitize=@FLAG_SANITIZER@
endif

# ------- CUDA ----------------------------------------------------------------
ifeq (yes,@ENABLE_CUDA@)
  # Use a conditional include so seqential cleans work
  -include $(build_dir)/cuda.mk
  target   := $(target).cuda
  charmrun := $(charmrun).cuda
endif

# ------- Include paths -------------------------------------------------------
structures_path     := @STRUCT_DIR@
charm_util_path     := @CHARM_PATH@/tmp
cache_lib_path      := @CHARM_PATH@/tmp/libs/ck-libs/cache
threadsafe_ht_path  := $(cache_lib_path)/threadsafe_hashtable

# ------- Modules to build ----------------------------------------------------
changa_modules := $(strip MultistepLB MultistepLB_notopo \
                    MultistepNodeLB_notopo Orb3dLB Orb3dLB_notopo HierarchOrbLB)

charm_modules := $(strip CkCache CkIO CkMulticast RefineLB \
                   GreedyLB RotateLB liveViz CkLoop)

# ------- Helper Variables ----------------------------------------------------
defines := $(strip @HEXADECAPOLE@ @FLAG_GDFORCE@ @FLAG_ARCH@  \
          @FLAG_CHANGESOFT@ @FLAG_BIGKEYS@ @FLAG_DTADJUST@    \
          @FLAG_SPH_KERNEL@ @FLAG_COOLING@ @FLAG_DIFFUSION@   \
          @FLAG_FEEDBACKDIFFLIMIT@ @FLAG_CULLENALPHA@         \
          @FLAG_VSIGVISC@ @FLAG_DAMPING@ @FLAG_DIFFHARMONIC@  \
          @FLAG_JEANSSOFTONLY@ @FLAG_FLOAT@ \
          @FLAG_TREE_BUILD@ $(debug_defines) @FLAG_INTERLIST@ \
          @FLAG_NSMOOTHINNER@ @FLAG_SPLITGAS@ @FLAG_SIDMINTERACT@ \
          @FLAG_SUPERBUBBLE@ $(cuda_defines) -DREDUCTION_HELPER)

modules := $(strip -language charm++ -balancer @DEFAULT_LB@   \
            $(foreach m,$(charm_modules),-module $(m))        \
            $(foreach m,$(changa_modules),-module $(m)))

includes := $(strip -I$(structures_path) -I$(cache_lib_path)  \
      -I$(source_dir) -I$(threadsafe_ht_path) -I$(build_dir)  \
      -I$(charm_util_path) -I@CHARM_PATH@/include) $(cuda_includes)

basic_flags   := $(opt_flag) $(threads) $(target_arch) $(debug_flags)
basic_ldlibs  := $(cuda_libs) $(modules) $(structures_path)/libTipsy.a $(threads)
basic_ldflags := $(debug_ldflags) $(cuda_ldflags) -L. -L@CHARM_PATH@/lib

# ------- Standard Variables --------------------------------------------------
# The global version of each flag must be at the end so that the user
# can override our defaults here from the command line
cpp_flags := $(includes) $(defines) @USER_CPPFLAGS@ @CPPFLAGS@ $(CPPFLAGS)
c_flags   := $(basic_flags) -std=$(c_std) $(cpp_flags) @USER_CFLAGS@ $(CFLAGS)
cxx_flags := $(basic_flags) -std=$(cxx_std) $(cpp_flags) @USER_CXXFLAGS@ $(CXXFLAGS)
ld_libs   := $(basic_ldlibs) @LIBS@ $(LDLIBS)
ld_flags  := $(basic_ldflags) @USER_LDFLAGS@ @LDFLAGS@ $(LDFLAGS)

# ------- Sources -------------------------------------------------------------
# Capture all sources except the ones for cooling
c_srcs   := $(filter-out $(source_dir)/cooling%,$(wildcard $(source_dir)/*.c))
cxx_srcs := $(filter-out $(source_dir)/cooling%,$(wildcard $(source_dir)/*.cpp))

# Add the cooling sources (if any)
ifeq (-DCOOLING_PLANET,@FLAG_COOLING@)
  c_srcs += $(source_dir)/cooling_planet.c
endif
ifeq (-DCOOLING_COSMO,@FLAG_COOLING@)
  c_srcs += $(source_dir)/cooling_cosmo.c
endif
ifeq (-DCOOLING_BOLEY,@FLAG_COOLING@)
	c_srcs += $(source_dir)/cooling_boley.c
endif
ifeq (-DCOOLING_METAL,@FLAG_COOLING@)
	c_srcs += $(source_dir)/cooling_metal.c
endif
ifeq (-DCOOLING_MOLECULARH,@FLAG_COOLING@)
	c_srcs += $(source_dir)/cooling_metal_H2.c
endif
ifeq (-DCOOLING_GRACKLE,@FLAG_COOLING@)
  c_srcs += $(source_dir)/cooling_grackle.c
endif

sources := $(c_srcs) $(cxx_srcs)

ci_files   := $(wildcard $(source_dir)/*.ci)
ci_headers := $(patsubst %.ci,%.decl.h,$(subst $(source_dir),$(build_dir),$(ci_files)))

c_objs   := $(patsubst %.c,%.o,$(subst $(source_dir),$(build_dir),$(c_srcs)))
cxx_objs := $(patsubst %.cpp,%.o,$(subst $(source_dir),$(build_dir),$(cxx_srcs)))
objects  := $(strip $(cxx_objs) $(c_objs) $(cuda_objs))

# ------- Dependencies --------------------------------------------------------
depend_flags  := -MMD -MP -MF
depend_dir    := $(build_dir)/.
depend_suffix := .d
depend_files  := $(wildcard $(depend_dir)/*$(depend_suffix))

# ------- Build targets -------------------------------------------------------
all: $(build_dir)/$(target)

.PHONY: show-config
show-config:
	@ echo TARGET = $(target)"\n"
	@ echo DEFAULT_LB = @DEFAULT_LB@"\n"
	@ echo TARGET_ARCH = $(target_arch)"\n"
	@ echo CPPFLAGS = $(cpp_flags)"\n"
	@ echo CFLAGS = $(filter-out $(cpp_flags),$(c_flags))"\n"
	@ echo CXXFLAGS = $(filter-out $(cpp_flags),$(cxx_flags))"\n"
	@ echo LDFLAGS = $(ld_flags)"\n"
	@ echo LDLIBS = $(ld_libs)"\n"

$(build_dir)/%.decl.h: $(source_dir)/%.ci
	@ echo Compiling $<...
	$(quiet) $(charmc) -E $(cpp_flags) $<

$(build_dir)/%.o: $(build_dir)/Makefile
$(cxx_srcs): $(ci_headers)

%.o: %.cpp
	$(compile-cxx)

%.o: %.c
	$(compile-c)

$(build_dir)/%.o: $(source_dir)/%.cpp
	$(compile-cxx)

$(build_dir)/%.o: $(source_dir)/%.c
	$(compile-c)

# Use a conditional include so consecutive cleans work
-include $(depend_files)

# Force a rebuild if the compiler flags have changed
.PHONY: force
$(build_dir)/settings: force
	$(quiet) flags="$(cxx_flags) $(c_flags) $(ld_libs) $(ld_flags)" && \
		echo "$$flags" | cmp -s - $@ || echo "$$flags" > $@

# The commitID should be refreshed on every build
$(build_dir)/cha_commitid.o: $(build_dir)/cha_commitid.c
	$(compile-c)

$(build_dir)/cha_commitid.c: force
	$(quiet) VER=`cd $(source_dir) && git describe --long --always` && \
	         echo "const char * const Cha_CommitID = \"$$VER\";" > $(build_dir)/cha_commitid.c

$(ci_files): $(build_dir)/settings
$(objects): $(build_dir)/settings

$(build_dir)/$(target): $(build_dir)/cha_commitid.o
$(build_dir)/$(target): $(foreach m,$(changa_modules),libmodule$(m).a)
$(build_dir)/$(target): $(objects) $(structures_path)/libTipsy.a
	$(link-charmc)
ifneq ($(notdir $(charmrun)),charmrun)
	$(quiet) if [ -e $(build_dir)/charmrun ]; then 									\
				mv $(build_dir)/charmrun $(build_dir)/$(charmrun);					\
			 fi
	$(quiet) if [ ! -e $(build_dir)/charmrun ]; then 				  			 	\
				ln -s $(build_dir)/$(charmrun) $(build_dir)/charmrun; 				\
			 else 													  				\
			 	echo "$(build_dir)/charmrun already exists. No symlink created."; 	\
		 	 fi
endif
ifneq ($(notdir $(target)),ChaNGa)
	$(quiet) if [ ! -e $(build_dir)/ChaNGa ]; then 									\
				ln -s $(build_dir)/$(target) $(build_dir)/ChaNGa; 					\
			 else 																	\
				echo "$(build_dir)/ChaNGa already exists. No symlink created.";		\
			 fi
endif

$(structures_path)/libTipsy.a:
	$(quiet) cd $(structures_path); $(MAKE) libTipsy.a

$(build_dir)/libmodule%.a: $(build_dir)/%.o
	@ echo Creating library $@...
	$(quiet) $(AR) $@ $^

.PHONY: docs
docs:
	@ Building docs...
	$(quiet) doxygen $(source_dir)/Doxyfile

.PHONY: clean
clean:
	@ echo Cleaning...
	$(quiet) $(RM) $(objects) *~ *.decl.h *.def.h $(depend_files) settings
	$(quiet) $(RM) $(foreach m,$(changa_modules),libmodule$(m).a)
	$(quiet) cd $(structures_path); $(MAKE) clean

.PHONY: dist-clean
dist-clean: clean
	$(quiet) $(RM) $(target) $(charmrun) ChaNGa* charmrun* config.status
	$(quiet) $(RM) config.log config.h Makefile $(build_dir)/cha_commitid.c

.PHONY: full-clean
full-clean: dist-clean
	$(quiet) $(RMR) $(source_dir)/autom4te.cache $(source_dir)/configure

# for backwards compatibility
.PHONY: ref-clean
ref-clean:
.PHONY: depends
depends:
.PHONY: test
test: