# Makefile.common -- standard targets and rules
# Copyright (C) 2000 Linas Vepstas
#                                                                  
# This program is free software; you can redistribute it and/or    
# modify it under the terms of the GNU General Public License as   
# published by the Free Software Foundation; either version 2 of   
# the License, or (at your option) any later version.              
#                                                                  
# This program is distributed in the hope that it will be useful,  
# but WITHOUT ANY WARRANTY; without even the implied warranty of   
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the    
# GNU General Public License for more details.                     
#                                                                  
# You should have received a copy of the GNU General Public License
# along with this program; if not, contact:
#
# Free Software Foundation           Voice:  +1-617-542-5942
# 59 Temple Place - Suite 330        Fax:    +1-617-542-2652
# Boston, MA  02111-1307,  USA       gnu@gnu.org

# Autoconf notes...
# Need to handle -MD there.

# COMMON_SRCS: have to be compiled separately for all flavors
#  MOTIF_SRCS: are motif only sources
#  GNOME_SRCS: are gnome only sources
#  INDEP_SRCS: are for flavor independent sources (like engine)

# OBJS is for flavor independent files
# GNOME/MOTIF_OBJS  is for flavor dependent files

# Clear all of the default suffix rules.  They were causing a great
# deal of agony when trying to get the .tmpl rules to work.  In
# general, we want to take charge of these for now.
.SUFFIXES:

OBJS       := $(addprefix obj/,${INDEP_SRCS:.c=.o})
GNOME_OBJS := $(addprefix obj/gnome/,${COMMON_SRCS:.c=.o})
GNOME_OBJS += $(addprefix obj/gnome/,${GNOME_SRCS:.c=.o})
MOTIF_OBJS := $(addprefix obj/motif/,${COMMON_SRCS:.c=.o})
MOTIF_OBJS += $(addprefix obj/motif/,${MOTIF_SRCS:.c=.o})
QT_OBJS    := $(addprefix obj/qt/,${COMMON_SRCS:.c=.o})
QT_OBJS    += $(addprefix obj/qt/,${QT_SRCS:.cpp=.o})

CFLAGS += ${DEFS}

ifdef GNOME_CONFIG_BIN
  GNOME_CFLAGS += $(shell ${GNOME_CONFIG_BIN} --cflags gnomeui)
endif

ifdef GLIB_CONFIG_BIN
  GLIB_CFLAGS := $(shell ${GLIB_CONFIG_BIN} --cflags)
  GLIB_LIBS   := $(shell ${GLIB_CONFIG_BIN} --libs)
endif

QT_FLAGS   := 


# All c files depend on headers with the same names.
%.c : %.h

# Basically take the output foo.d file and put it in the right
# subdirectory, adding a prefix indicating where the file actually
# lives (i.e. obj-pic/Foo.cc rather than Foo.cc.  This would all be
# unnecessary if gcc actually paid attention to the argument to "-o".

# Note that this cannot handle subdirs in the Makefile dir, so if the
# relevant Makefile was src/foo/Makefile, this rule can't handle
# src/foo/bar/x.c src/foo/x.c and src/foo/bax/x.c.  You'd need another
# Makefile in src/foo/bar and src/foo/bax for now.

define cleanupdeps
	sed -e "1 s|$(basename $<)\.o|$@|1" $(basename $@).d.tmp > $(basename $@).d
	rm $(basename $@).d.tmp
endef

# Default rule used for non-flavor dependent files (i.e. all of register)
obj/%.o: %.c
	@if [ ! -e $(dir $@) ]; then mkdir -p $(dir $@); fi
	$(CC) -Wp,-MD,$(basename $@).d.tmp -c $(CFLAGS) -o $@ $< 
	${cleanupdeps}

obj/%.o: %.cpp
	@if [ ! -e $(dir $@) ]; then mkdir -p $(dir $@); fi
	g++ -Wp,-MD,$(basename $@).d.tmp -c $(CFLAGS) -o $@ $< 
	${cleanupdeps}


obj/motif/%.o: %.c
	@if [ ! -e $(dir $@) ]; then mkdir -p $(dir $@); fi
	$(CC) -Wp,-MD,$(basename $@).d.tmp -c $(CFLAGS) ${MOTIF_CFLAGS} -DMOTIF -o $@ $< 
	${cleanupdeps}

obj/gnome/%.o: %.c
	@if [ ! -e $(dir $@) ]; then mkdir -p $(dir $@); fi
	$(CC) -Wp,-MD,$(basename $@).d.tmp -c $(CFLAGS) ${GNOME_CFLAGS} -DGNOME -o $@ $< 
	${cleanupdeps}

obj/qt/%.o: %.cpp
	@if [ ! -e $(dir $@) ]; then mkdir -p $(dir $@); fi
	g++ -Wp,-MD,$(basename $@).d.tmp -c $(CFLAGS) ${QT_CFLAGS} -DKDE -o $@ $< 
	${cleanupdeps}

obj/qt/%.o: %.c
	@if [ ! -e $(dir $@) ]; then mkdir -p $(dir $@); fi
	$(CC) -Wp,-MD,$(basename $@).d.tmp -c $(CFLAGS) ${QT_CFLAGS} -DKDE -o $@ $< 
	${cleanupdeps}

clean-files:
	rm -f *~ *.bak \#*
	rm -rf obj
	-rm -rf ${TRASH}

clean: clean-files
	$(foreach dir,${CLEAN_SUBDIRS},(cd ${dir} && $(MAKE) clean);)

distclean: clean-files
	$(foreach dir,${CLEAN_SUBDIRS},(cd ${dir} && $(MAKE) distclean);)
	rm -f Makefile.bak
	rm -f $(foreach f,$(wildcard *.in),$(filter-out configure,$(f:.in=)))
	-rm -rf ${DIST_TRASH}

dist:
	$(foreach dir,${CLEAN_SUBDIRS},(cd ${dir} && $(MAKE) dist);)

.PHONY: clean clean-files dist distclean

# Get dependencies (if existent).

-include $(shell if [ -e obj ]; then find obj -name "*.d"; fi) ""