# This is a basic makefile that uses a flat directory structure. It could be
# expanded to support multiple subdirectories and/or libraries
#
# Compilers to use
CC=gcc
CPP=g++
AR=ar
RANLIB=ranlib
ECHOEN=echo -en

# Flags for the compilers
#
# Think about those as additionals :
# -fvtable-gc
# -ffunction-sections
# -Wl,--gc-sections
# -frepo
# 
CFLAGS= -pipe -Wall -g -O3
CPPFLAGS= -pipe -Wall -g -O3

# Flags for the linker
CPPLDFLAGS=$(LIBLIBS) -shared -Wl,-warn-once,-soname,

DEPFLAG=-M $(INCLUDE)

# // How can we do this better ?
ifneq ($(MAKECMDGOALS),steril)
ifneq ($(MAKECMDGOALS),mrproper)
ifneq ($(MAKECMDGOALS),clean)
ifneq ($(MAKECMDGOALS),distclean)
ifneq ($(MAKECMDGOALS),dist)

# include dependencies files if it exists
-include .depend
endif
endif
endif
endif
endif

# include generated configuration
-include $(TOPDIR)/makefile.conf

# Those need the stuff from makefile.conf
BINDIR=$(PREFIX)/bin/
SHAREDIR=$(PREFIX)/share/
DOCDIR=$(SHAREDIR)/doc/packages/$(DISTDIR)
LIBDIR=$(PREFIX)/lib/
INCDIR=$(PREFIX)/include/
LIB=$(LIBNAME).so.$(LIBVERSION)
STATLIB=$(LIBNAME).a

# Where do we search for libfiles ?
LIBINCLUDE=-L$(LIBDIR) -L$(LIBSEARCH)
# Where do we search for include files ?
INCLUDE=-I . -I $(PREFIX)/include/ $(INCLUDES)

# For displaying purposes
#ESC=`echo -en "\033"`
ESC=`$(ECHOEN) "\033"`
RED="$(ESC)[1;31m"
GRN="$(ESC)[1;32m"
YEL="$(ESC)[1;33m"
BLU="$(ESC)[1;34m"
VIO="$(ESC)[1;35m"
TUK="$(ESC)[1;36m"
WHT="$(ESC)[1;37m"
NOR="$(ESC)[m"

STERILFILES?=nix
STERILDIR?=nix
EXTRACLEANFILES?=nix

SUBDIR=$(notdir $(PWD))
SUBLIBFILES=$(LIBFILES_$(SUBDIR))
SUBLIBNAME=lib-$(SUBDIR).a
SUBLIBFILES=$(foreach subdir,$(SRCDIRS), $(foreach file,$(LIBFILES_$(notdir $(subdir))),$(subdir)/$(file)))
SUBLIBS=$(foreach subdir,$(SRCDIRS),$(subdir)/lib-$(notdir $(subdir)).a)

$(TOPDIR)/makefile.conf: 
	@echo $(RED)You need to run $(TOPDIR)/configure before starting compilation$(NOR)
	@exit 1

ifeq ($(ROOTDIR),true)
lib libs: $(SUBLIBFILES)
#	@for dir in $(SRCDIRS); do \
#	    (cd $$dir;$(MAKE) sublib) \
#	done
	@echo $(BLU)[LD]$(NOR) $(LIB)
	@$(CPP) $(CPPLDFLAGS)$(LIB) $(SUBLIBFILES) -o $(TOPDIR)/lib/$(LIB)
	@echo $(BLU)[AR]$(NOR) $(STATLIB)
	@$(AR) r $(TOPDIR)/lib/$(STATLIB) $(SUBLIBFILES)
	@$(RANLIB) $(TOPDIR)/lib/$(STATLIB)
endif

$(LIBDIR):
	@echo $(BLU)[MKDIR]$(NOR) $@
	@mkdir -p $@

$(INCDIR):
	@echo $(BLU)[MKDIR]$(NOR) $@
	@mkdir -p $@

clean:
	@echo $(VIO)[CLEAN]$(NOR) $(PWD)
	@for dir in $(SRCDIRS); do \
	    (rm -f *.o .depend* $$dir/*.o $$dir/.depend* $$dir/$(EXTRACLEANFILES)) \
	done

distclean: steril
	@echo $(VIO)[DISTCLEAN]$(NOR) $(PWD)
	@rm -f *.tar.bz2 
	@rm -f *.tar
	@rm -f *.tar.rk

mrproper steril: clean
	@echo $(VIO)[STERIL]$(NOR) $(PWD)
	@rm -rf $(STERILDIRS)
	@rm -f $(STERILFILES)
	@for dir in $(SRCDIRS); do \
	    (rm -f *.a *.s $$dir/*.a $$dir/*.s *.log *.tag) \
	done

.PHONY: doku docs doc
doku docs doc:
	@rm -f doxygen.log
	@echo $(BLU)[DOXYGEN]$(NOR) doxygen.conf \> doxygen.log 
	@$(DOXYGEN) doxygen.conf &> doxygen.log

# Generic targets for .o files
%.o:%.cpp
	@echo $(TUK)[CPP]$(NOR) $*.o
	@$(CPP) $(CPPFLAGS) $(INCLUDE) -c $*.cpp -o $*.o

%.s:%.cpp
	@echo $(RED)[CPP -S]$(NOR) $*.o
	@$(CPP) $(CPPFLAGS) -S $(INCLUDE) -c $*.cpp -o $*.s

%.o:%.c
	@echo $(YEL)[CC]$(NOR) $*.o
	@$(CC) $(CFLAGS) $(INCLUDE) -c $*.c  -o $*.o
ifneq ($(ROOTDIR),true)

sublib: $(SUBLIBFILES)
	@echo $(BLU)[AR]$(NOR) $(SUBLIBNAME)
	@$(AR) r $(SUBLIBNAME) $(SUBLIBFILES)
	@$(AR) s $(SUBLIBNAME)

dep depend .depend::
	@echo $(TUK)[CPP -M]$(NOR) \*.cpp
	@ls *.cpp | head -1 | test -s && $(CPP) $(DEPFLAG) *.cpp > .depend 2> .depend.err || touch .depend
	@echo $(YEL)[CC -M]$(NOR) \*.c
	@test -s *.c && $(CC) $(DEPFLAG) *.c >> .depend 2>> .depend.err || touch .depend
	@echo -n $(RED)[CHECK]$(NOR) .depend.err" "
	@(test -s .depend.err && echo [$(RED)ERROR$(NOR)]) || echo [$(GRN)OK$(NOR)]
endif

.PHONY: help lib libs $(DISTDIR)
help:
	@echo 
	@echo $(WHT)Help for iwear $(DISTNAME)$(NOR)
	@echo 
	@echo Possible Targets \($(GRN)green$(NOR) is default target\)
	@echo 
	@echo -e $(GRN)lib$(NOR) "\t" Create ./lib/$(LIBNAME).so
	@echo -e $(TUK)test$(NOR) "\t" Create test program\(s\) in $(SRCDIR)
	@echo -e $(TUK)help$(NOR) "\t" Display this help screen
	@echo -e $(TUK)depend$(NOR) "\t" Generate dependencies 
	@echo -e $(TUK)clean$(NOR) "\t" Remove compiler generated files 
	@echo -e $(TUK)steril$(NOR) "\t" Remove all generated files too
	@echo -e $(RED)link$(NOR) "\t" Create links necessary for linking
	@echo -e $(RED)dist$(NOR) "\t" Create links necessary for linking
	@echo

$(DISTDIR): distclean
	@echo $(BLU)[MKDIR]$(NOR) $(DISTDIR)
	@mkdir -p .$(DISTDIR)	
	@cp -r * .$(DISTDIR)
	@mv .$(DISTDIR) $(DISTDIR)

tar dist: $(DISTDIR)
	@echo $(BLU)[TAR]$(NOR) $(DISTDIR)-$(LIBVERSION).tar.bz2
	@tar cjf $(DISTDIR)-$(LIBVERSION).tar.bz2 $(DISTDIR) 
	@rm -rf $(DISTDIR)

rk rkdist: distclean
	@echo $(BLU)[TAR]$(NOR) $(DISTDIR)-$(LIBVERSION).tar
	@tar cf $(DISTDIR)-$(LIBVERSION).tar $(DISTDIR) 
	@echo $(BLU)[RK]$(NOR) $(DISTDIR)-$(LIBVERSION).tar.rk
	@rk -mx $(DISTDIR)-$(LIBVERSION).tar.rk $(DISTDIR)-$(LIBVERSION).tar
	@rm -f $(DISTDIR)-$(LIBVERSION).tar
	@rm -rf $(DISTDIR)

iwear/iwear.h:
	@echo $(YEL)Cannot find iwear/iwear.h did you forgot to $(RED)make link$(YEL) in iwear/$(SRCDIR) ?$(NOR)
	@exit 1

count cnt:
	@echo $(GRN)[WC]$(NOR) *.cpp *.h
	@find | egrep ".cpp$$|.h$$" | xargs wc

SRCHOME=$(PWD)

#XXX Need to check if DISTNAME==* ??
ifdef DISTNAME
ifdef LIBNAME
.PHONY: lnk links link rechts install
rechts lnk links link: $(LIBDIR) $(INCDIR)
	@echo $(GRN)[LN -s]$(NOR) $(LIB)
	@cd $(LIBDIR); rm -f $(LIBNAME)*
	@cd $(LIBDIR) ;ln -sf $(SRCHOME)/lib/$(LIB)
	@cd $(LIBDIR) ;ln -sf $(LIB) $(LIBNAME).so
	@echo $(GRN)[LN -s]$(NOR) $(LIBNAME).a
	@cd $(LIBDIR) ;ln -sf $(LIB) $(LIBNAME).a
	@echo $(GRN)[LN -s]$(NOR) $(DISTNAME)
	@cd $(INCDIR); rm -rf $(DISTNAME)
	@cd $(INCDIR); ln -sf $(SRCHOME)/include/ $(DISTNAME)

install: lib
	@echo $(YEL)Removing old files and versions$(NOR)
	@cd $(LIBDIR); rm -f $(LIBNAME)*
	@cd $(INCDIR); rm -rf $(DISTNAME)
	@echo $(YEL)[CP]$(NOR) $(LIB)
	@cp $(TOPDIR)/lib/$(LIB) $(LIBDIR)
	@echo $(GRN)[LN -s]$(NOR) $(LIBNAME).so
	@cd $(LIBDIR); ln -s $(LIB) $(LIBNAME).so
	@mkdir -p $(INCDIR)/$(DISTNAME)/
	@cp include/*.h* $(INCDIR)/$(DISTNAME)/

doc-install:
	@echo $(YEL)Removing old files and versions$(NOR)
	@mkdir -p $(DOCDIR)
	@cd $(DOCDIR); cd ..; rm -rf $(DISTDIR)
	@echo $(YEL)[CP]$(NOR) doc
	@cd doc;cp -r html $(DOCDIR)/
	@cp COPYING $(DOCDIR)

update:	
	cvs update -dP
	$(MAKE) steril
	./configure
	$(MAKE) -C . lnk
	$(MAKE) -C . lib
	
endif
endif