Adding INCLUDE, LIB and LD_LIBRARY_PATH in Makefile - c++

Question

I am writing a new Makefile and would like to copy my object files in obj/ folder. I tried to add OBJ directory folder but it is not picking up. I am sure I am missing something. For now I moved .o files from src/ folder to obj/ folder after compilation.
Could you please let me know how to add INCLUDES and LIB_INCLUDES in this makefile. As include path is not there in Makefile it is expecting me to specify complete (relative) path in source code while including header file.
Also, I would like to include some external libraries (LD_LIBRARY_PATH) statically in my executable, so how can I specify those in Makefile:
APPNAME := MyApp.x
SOURCE_DIR := ./src
INCLUDE_DIR := ./include
OBJECT_DIR := ./obj
BIN_DIR := ./bin
CC := g++
CCFLAGS := -g -Wall
SRCFILES := $(wildcard $(SOURCE_DIR)/*.cpp)
INCLUDES := $(INCLUDE_DIR)
LIB_INCLUDES := $(INCLUDE_DIR)
OBJECTS := $(patsubst %.cpp, %.o, $(SRCFILES))
all: $(APPNAME)
$(APPNAME): $(OBJECTS)
$(CC) $(CCFLAGS) $(LDFLAGS) -o $(BIN_DIR)/$(APPNAME) $(OBJECTS) $(LDLIBS)
\mv -f $(SOURCE_DIR)/*.o obj
depend: .depend
.depend: $(SRCFILES)
rm -f ./.depend
$(CC) -I$(INCLUDES) $(CCFLAGS) $^>>./.depend;
clean:
rm -f $(OBJECTS)
dist-clean: clean
rm -f *~ .depend
include .depend
Created separate thread for this request - lubgr.

Answer 1

Try this (for the sake of brevity, I stripped off the .depend part and both clean targets):
APPNAME := MyApp.x
SOURCE_DIR := src
INCLUDE_DIR := include
OBJECT_DIR := obj
BIN_DIR := bin
CC := g++
CCFLAGS := -g -Wall
SRCFILES := $(wildcard $(SOURCE_DIR)/*.cpp)
INCLUDES := $(INCLUDE_DIR)
OBJECTS := $(SRCFILES:$(SOURCE_DIR)/%.cpp=$(OBJECT_DIR)/%.o)
all: $(BIN_DIR)/$(APPNAME)
$(BIN_DIR)/$(APPNAME): $(OBJECTS)
$(CC) $(CCFLAGS) -o $# $(OBJECTS)
$(OBJECT_DIR)/%.o: $(SOURCE_DIR)/%.cpp
$(CC) $(CCFLAGS) -I$(INCLUDES) -o $# -c $<
For further static libraries, you pass them to the linker just like object files, e.g.
STATIC_LIBS = lib/libfirst.a lib/libsecond.a
$(BIN_DIR)/$(APPNAME): $(OBJECTS)
$(CC) $(CCFLAGS) -o $# $(OBJECTS) $(STATIC_LIBS)
This differs when it comes to linking against shared libraries, but as you said your libs are all compiled into static ones, this should work.