# -*-Mode: Makefile;-*-
#
# To rebuild PERL2ARB from $ARBHOME call
# make perl_clean perl

ARB_MAINMAKEFILE=../Makefile
THIS=Makefile.main

# howto call Makefile.main (this file)
MAKETHIS=$(MAKE) -f $(THIS)

# howto call generated Makefile
PMAKE=$(MAKE) "CC=$(A_CXX)" 

LIB=$(ARBHOME)/lib
ARBDB=$(ARBHOME)/ARBDB

# code in -> ../PERLTOOLS/arb_proto_2_xsub.cxx
ARB_PROTO_2_XSUB=$(ARBHOME)/bin/arb_proto_2_xsub

HEADERS = \
	$(ARBDB)/ad_prot.h \
	$(ARBDB)/ad_t_prot.h \

ifeq ($(DARWIN),1)
SO:=bundle
else
SO:=so
endif

ARB_SO=blib/arch/auto/ARB/ARB.$(SO)

TARGET_PM=$(LIB)/ARB.pm
TARGET_SO=$(LIB)/ARB.$(SO)

TARGETS=$(TARGET_PM) $(TARGET_SO)

XS_DEPENDS = Makefile Makefile.main ARB.xs debug.h Makefile.PL

# ------------------------------------------------------------
# variables for Makefile

MYEXTLIB :=
PASTHRU_INC :=
PASTHRU_DEFINE :=

export MYEXTLIB PASTHRU_INC PASTHRU_DEFINE dflags
export CC CXX A_CC A_CXX 

# ------------------------------------------------------------

ifeq ($(AUTODEPENDS),1)
all:
	+test -f .depends || $(MAKETHIS) "AUTODEPENDS=0" .depends
	+$(MAKETHIS) "AUTODEPENDS=2" all
else
all: realall
endif

realall: perlmain.c $(TARGETS)

perlmain.c: perlmain_source.c
	cp $< $@

$(TARGET_PM) : ARB.pm
	cp $< $@

$(TARGET_SO) : $(ARB_SO)
	cp $< $@

$(ARB_SO) : $(XS_DEPENDS) depends.stamp
	rm $(ARB_SO) || true
	@echo "Used perl version: `perl -v | grep 'This is perl'`"
	@echo "-------- calling MakeMaker-Makefile"
	( $(PMAKE) $@ || (echo "------ failed[1].. retry once"; $(PMAKE) $@))
	@echo "-------- post-recreating .depends"
	+$(MAKETHIS) "DEPENDS=0" .depends
	+$(MAKETHIS) $@ # recurse

ARB.c : $(XS_DEPENDS)
	@echo "-------- calling MakeMaker-Makefile (to get depends)"
	( $(PMAKE) $@ || (echo "------ failed[2].. retry once"; $(PMAKE) $@))
	@echo "-------- end of MakeMaker-Makefile"

# buildMakefile

# ------------------------------------------------------------
# hack to compile with gcc 4.7.x and perl 5.10.1
# (see http://bugs.arb-home.de/changeset/10566 for why)

PERL_GCC_INCOMPAT:= \
	v5.10.1___4.7.1 \
	v5.10.1___4.7.3 \
	v5.10.1___4.7.4 \

PERL_GCC:=$(shell perl -e 'print "$$^V\n";')___$(COMPILER_VERSION)
WONT_COMPILE_CXX11:=$(findstring $(PERL_GCC),$(PERL_GCC_INCOMPAT))

ifneq ('$(WONT_COMPILE_CXX11)','')
	hacked_cflags:=$(subst -std=gnu++11,,$(cflags4perl))
else
	hacked_cflags:=$(cflags4perl)
endif
ifeq ($(USE_CLANG),1)
	hacked_cflags:=$(hacked_cflags) -Wno-duplicate-decl-specifier
endif

used_cflags:=$(subst -Weffc++,,$(hacked_cflags)) -Wno-literal-suffix -Wno-unused-parameter $(CXX_INCLUDES)
used_lflags:=$(lflags4perl)

MAKE_MAKEFILE=make_arbperl_makefile.pl

Makefile : $(MAKE_MAKEFILE) typemap Makefile.main $(ARB_MAINMAKEFILE)
	( PATH=/usr/arb/bin:${PATH}; \
	  export PATH; \
	  echo calling perl $(MAKE_MAKEFILE) "$(used_cflags)" "$(used_lflags)"; \
	  perl $(MAKE_MAKEFILE) "$(used_cflags)" "$(used_lflags)" )

Makefile.PL : $(MAKE_MAKEFILE)
	( \
		echo "system('perl $< \"$(used_cflags)\" \"$(used_lflags)\"');" \
	) > $@

ARB.xs : $(ARB_PROTO_2_XSUB) proto.h ARB.default.xs perlmain_source.c typemap
	@(test -f $@ && chmod a+w $@) || true
	$(ARB_PROTO_2_XSUB) proto.h ARB.default.xs typemap >$@
	@test -f $@ && chmod a-w $@

proto.h : $(HEADERS) $(THIS) depends.stamp
	cat $(HEADERS) > $@

debug.h : $(THIS)
	echo "#undef DEBUG" > $@
	echo "#undef NDEBUG" >> $@
ifeq ($(DEBUG),1)
	echo "#define DEBUG" >> $@
else
	echo "#define NDEBUG" >> $@
endif

clean:
	-test -f Makefile && $(MAKE) clean
	rm -f Makefile.old proto.h debug.h ARB.c ARB.xs .depends depends.stamp Makefile.PL $(TARGETS)
	rm -f Makefile

.depends: depends.stamp Makefile.main
	+test -f ARB.c || $(MAKETHIS) "AUTODEPENDS=0" ARB.c 
	$(MAKEDEPEND) -f- $(MAKEDEPENDFLAGS) ARB.c 2>/dev/null | \
		perl -ne 's/ARB.o:/depends.stamp:/g; print $$_;' | \
		../SOURCE_TOOLS/fix_depends.pl "(from PERL2ARB)" > $@


depends.stamp:
	touch $@

ifeq ($(AUTODEPENDS),2) 
include .depends
endif