I started working on a small project to implement a todo app in C++.
I wrote a Makefile to compile my C++ files but , the Makefile Only compiles main.cc and nothing else.
Here is my MakeFile
#MakeFile for Building the ToDoList App
# Compile CXX Files
CXX := g++-4.9
CXXFLAGS := -std=c++11
CXXFILES := $(wildcard src/*.cc src/lexer/*.cc)
CXXOBJECTS := $(CXXFILES:.cc=.o)
CXXHEADERS := $(wildcard *.h)
# Link all Object Files
LD := ld
LDFLAGS :=
# Declare Clean and Run as Phony Targets
.PHONY: clean run
# The Final Product will be the To-Do APP
all: TedO.app
# Compile the ToDO APP
TedO.app: $(CXXOBJECTS)
$(LD) $(LDFLAGS) -o build/$@ $^
# Run the APP from the Build Folder
run: TedO.app
./build/$^
# Compile the CC files into Object files and place it into the same directory.
%.o: %.cc
$(CXX) $(CXXFLAGS) -o $@ $<
# Clean all the Objects
clean: $(CXXOBJECTS)
rm $^
Here is my Directory Structure
.
├── Makefile
├── Makefile.swp
├── build
│ ├── tedo
│ └── tedo.txt
├── doc
├── src
│ ├── lexer
│ │ ├── lexer.cc
│ │ └── lexer.h
│ └── main.cc
└── tree.txt
4 directories, 8 files
Here is my Output from the Console when running Make
g++-4.9 -std=c++11 -o src/main.o src/main.cc
Undefined symbols for architecture x86_64:
"lexer::lexer()", referenced from:
_main in ccmWqgIU.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status
make: *** [src/main.o] Error 1
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