.POSIX:

VERSION = 0

PREFIX = /usr/local

PKG_CONFIG = pkg-config

PKGS = wayland-client fcft pixman-1
INCS != $(PKG_CONFIG) --cflags $(PKGS)
LIBS != $(PKG_CONFIG) --libs $(PKGS)

CPPFLAGS += -DVERSION=\"$(VERSION)\" -D_GNU_SOURCE
CFLAGS   += -pedantic -Wall -Wno-unused-function -Wno-strict-prototypes $(INCS)
LDLIBS   = $(LIBS)

PROTO = xdg-shell-protocol.h wlr-layer-shell-unstable-v1-protocol.h \
        river-control-unstable-v1-protocol.h river-status-unstable-v1-protocol.h
SRC = dam.c $(PROTO:.h=.c)
OBJ = $(SRC:.c=.o)

all: dam

config.h:
	cp config.def.h $@

dam: $(OBJ)
$(OBJ): config.h $(PROTO)

WAYLAND_SCANNER   != $(PKG_CONFIG) --variable=wayland_scanner wayland-scanner
WAYLAND_PROTOCOLS != $(PKG_CONFIG) --variable=pkgdatadir wayland-protocols

xdg-shell-protocol.c:
	$(WAYLAND_SCANNER) private-code $(WAYLAND_PROTOCOLS)/stable/xdg-shell/xdg-shell.xml $@
xdg-shell-protocol.h:
	$(WAYLAND_SCANNER) client-header $(WAYLAND_PROTOCOLS)/stable/xdg-shell/xdg-shell.xml $@
wlr-layer-shell-unstable-v1-protocol.c:
	$(WAYLAND_SCANNER) private-code wlr-layer-shell-unstable-v1.xml $@
wlr-layer-shell-unstable-v1-protocol.h:
	$(WAYLAND_SCANNER) client-header wlr-layer-shell-unstable-v1.xml $@
wlr-layer-shell-unstable-v1-protocol.o: xdg-shell-protocol.o
river-control-unstable-v1-protocol.c:
	$(WAYLAND_SCANNER) private-code river-control-unstable-v1.xml $@
river-control-unstable-v1-protocol.h:
	$(WAYLAND_SCANNER) client-header river-control-unstable-v1.xml $@
river-status-unstable-v1-protocol.c:
	$(WAYLAND_SCANNER) private-code river-status-unstable-v1.xml $@
river-status-unstable-v1-protocol.h:
	$(WAYLAND_SCANNER) client-header river-status-unstable-v1.xml $@

clean:
	rm -f dam $(OBJ) $(PROTO:.h=.c) $(PROTO)

install: all
	mkdir -p $(DESTDIR)$(PREFIX)/bin
	cp -f dam $(DESTDIR)$(PREFIX)/bin
	chmod 755 $(DESTDIR)$(PREFIX)/bin/dam

uninstall:
	rm -f $(DESTDIR)$(PREFIX)/bin/dam
	
.PHONY: all clean install uninstall