Makefile: build fxo in release/debug directories

Makefile

@@ -1,27 +1,34 @@
 BUILD_TYPE ?= debug
 
+ifeq ($(BUILD_TYPE),debug)
+OPT = -g -Og
+LDOPT =
+else
+OPT = -O2
+LDOPT = -flto
+endif
+
 PREFIX = i686-w64-mingw32-
 WINDRES = $(PREFIX)windres
 CXX = $(PREFIX)g++
 
-OPT = -g -Og
-
 CXXSTD += -std=gnu++14
 
 CFLAGS += -march=core2
 CFLAGS += -Wall -Werror -Wfatal-errors
 CFLAGS += -Wno-unused-but-set-variable
 CFLAGS += -Wno-unknown-pragmas
+CFLAGS += -municode
+CFLAGS += -I./include
+LDFLAGS += -municode
+LIBS += -ld3d10
+
 CXXFLAGS += -fno-exceptions
 
-CFLAGS += -municode
+all: $(BUILD_TYPE)/d3d10.exe
 
-WOPT += -municode
+$(BUILD_TYPE)/%.fxo: src/%.fx
-
+	@mkdir -p $(@D)
-INCLUDE = \
-	-I./include
-
-%.fxo: %.fx
 ifeq ($(OS),Windows_NT)
 	fxc.exe @"shader_$(BUILD_TYPE).rsp" /T fx_4_0 /nologo /Fo $@ $<
 else
@@ -30,17 +37,19 @@ else
 endif
 
 SHADERS = \
-	main.fxo \
+	$(BUILD_TYPE)/effect/main.fxo \
-	font.fxo \
+	$(BUILD_TYPE)/effect/font.fxo \
-	volume.fxo \
+	$(BUILD_TYPE)/effect/volume.fxo \
-	bloom.fxo \
+	$(BUILD_TYPE)/effect/bloom.fxo \
-	static.fxo
+	$(BUILD_TYPE)/effect/static.fxo
 
 $(BUILD_TYPE)/%.res: %.rc $(SHADERS)
-	$(WINDRES) -O coff -o $@ $<
+	@mkdir -p $(@D)
+	$(WINDRES) -O coff -I$(BUILD_TYPE)/effect -o $@ $<
 
 $(BUILD_TYPE)/%.obj: src/%.cpp
-	$(CXX) $(CXXSTD) $(CFLAGS) $(CXXFLAGS) $(WOPT) $(OPT) -o $@ $(INCLUDE) -c $<
+	@mkdir -p $(@D)
+	$(CXX) $(CXXSTD) $(CFLAGS) $(CXXFLAGS) $(WOPT) $(OPT) -o $@ -c $<
 
 OBJS = \
 	$(BUILD_TYPE)/robot_player.obj \
@@ -51,4 +60,5 @@ OBJS = \
 	$(BUILD_TYPE)/main.res
 
 $(BUILD_TYPE)/d3d10.exe: $(OBJS)
-	$(CXX) $(LDFLAGS) $(WOPT) -o $@ $(OBJS) -ld3d10
+	@mkdir -p $(@D)
+	$(CXX) $(LDFLAGS) $(LDOPT) -o $@ $(OBJS) $(LIBS)