# Source version
ifndef OWLPS_VERSION
	OWLPS_VERSION := $(shell git describe 2>/dev/null || echo 'UNKNOWN_VERSION')
endif

# Emplacement de la suite de cross-compilation
TOOLCHAIN_PREFIX = $$HOME/openwrt/atheros/8.09
TOOLCHAIN_BIN = $(TOOLCHAIN_PREFIX)/staging_dir/toolchain-mips_gcc4.1.2/bin
TOOLCHAIN_USR = $(TOOLCHAIN_PREFIX)/staging_dir/mips/usr
TOOLCHAIN_USR_2 = $(TOOLCHAIN_PREFIX)/build_dir/mips/OpenWrt-SDK-atheros-for-Linux-i686/staging_dir/toolchain-mips_gcc4.1.2

# Répertoire d'installation
PREFIX=/usr/local
INSTALL_DIR= $(PREFIX)/bin
INSTALL_LIB= $(PREFIX)/lib
INSTALL_INC= $(PREFIX)/include
INSTALL_MAN= $(PREFIX)/share/man

# Compilateur
CC = $(TOOLCHAIN_BIN)/mips-linux-gcc

# Commandes d'installation et de désinstallation
RM = rm -f
CP = cp

# Cible
TARGET=owlps-client
HEADER=

# Flags
LIBOWLPS_DIR = ../libowlps
LIBOWLPSCLIENT_DIR = ../libowlps-client
CFLAGS = -O2 -Wall -Wextra -Wstrict-prototypes \
	-I$(LIBOWLPS_DIR) -I$(LIBOWLPSCLIENT_DIR)
DEPFLAGS = -MMD
XCFLAGS = $(CFLAGS) $(DEPFLAGS) $(WARN) $(HEADERS)
PICFLAG = -fPIC
LOWLPS = -L$(LIBOWLPS_DIR) -lowlps
LOWLPSA = $(LIBOWLPS_DIR)/libowlps.a
LOWLPSCLIENTA = $(LIBOWLPSCLIENT_DIR)/libowlps-client.a
LIBS = $(LOWLPSCLIENTA)
DYNAMIC_LIBS = $(LOWLPS) $(LIBS)
SEMISTATIC_LIBS = $(LOWLPSA) $(LIBS)
STATIC_LIBS = $(LOWLPSA) $(LIBS)
LATHEROS = -L$(TOOLCHAIN_USR)/lib -L$(TOOLCHAIN_USR_2)/lib
IATHEROS = -I$(TOOLCHAIN_USR)/include -I$(TOOLCHAIN_USR_2)/include
LDFLAGS = $(IATHEROS) $(LATHEROS)
OWLPSFLAGS = -D OWLPS_VERSION=\"$(OWLPS_VERSION)\"
OWLPSFLAGS += -D DEBUG


## Cibles de compilation standard ##

.PHONY: all dynamic semistatic static install uninstall clean purge help

dynamic: $(TARGET)
semistatic: $(TARGET).semistatic
static: $(TARGET).static
all: dynamic semistatic static

# Cancel implicit make rule
%: %.c

%: %.o
	$(CC) $(STRIPFLAGS) $(XCFLAGS) -o $@ $^ $(LDFLAGS) $(DYNAMIC_LIBS)

%.semistatic: %.o
	$(CC) $(STRIPFLAGS) $(XCFLAGS) -o $@ $^ $(LDFLAGS) $(SEMISTATIC_LIBS)

%.static: %.o
	$(CC) $(STRIPFLAGS) $(XCFLAGS) -o $@ $^ $(LDFLAGS) $(STATIC_LIBS) \
		-static

%.o: %.c $(HEADER)
	$(CC) $(XCFLAGS) $(IATHEROS) $(OWLPSFLAGS) -c $<


## Installation / désinstallation ##

install : $(TARGET)
	@$(CP) $(TARGET) $(INSTALL_DIR)
	@cd $(INSTALL_DIR) ; chown root:root $(TARGET) ; chmod 755 $(TARGET)

uninstall :
	@$(RM) $(INSTALL_DIR)/$(TARGET)


## Nettoyage ##

clean :
	@$(RM) *~ *.o *.d

purge : clean
	@$(RM) $(TARGET) $(TARGET).static $(TARGET).semistatic


## Aide ##

help :
	@echo "Bibliothèques nécessaires à la compilation :"
	@echo "	libowlps1.0 (fournie)"
	@echo
	@echo "Cibles possibles :"
	@echo "	$(TARGET) (cible par défaut) : Compile le programme \
$(TARGET)."
	@echo "	$(TARGET).static : Compile le programme $(TARGET).static \
(version sans lien dynamique)."
	@echo "	$(TARGET).semistatic : Compile le programme \
$(TARGET).semistatic (version sans lien dynamique vers libowlps)."
	@echo "	install : Installe le programme $(TARGET)."
	@echo "	uninstall : Désinstalle le programme $(TARGET)."
	@echo "	clean : Supprime les fichiers temporaires."
	@echo "	purge : Supprime le résultat de la compilation."
	@echo
	@echo "Note : l'installation se fait dans l'arborescence $(PREFIX). \
Modifiez la variable PREFIX du Makefile pour changer ce comportement."