makefile undefined reference error - makefile

Question

I'm having trouble compiling my project I am coding files wordbench2.h, wordbench2.cpp, makefile.wb2, oaa_bst.h for the main file I was given (main_wb2.cpp) I was wondering if anyone sees something wrong in my makefile
LIB = /home/courses/cop4530p/LIB
CPP = $(LIB)/cpp
TCPP = $(LIB)/tcpp
PROJ = .
INCPATH = -I$(PROJ)-I$(CPP)-I$(TCPP)
CC = g++ -std=c++11 -Wall -Wextra -I. -I$(CPP)
#target:
all: wb2.x foaa.x moaa.x
#foaa+.x
main_wb2.o: wordbench2.h main_wb2.cpp
$(CC) -c main_wb2.cpp
foaa.o: wordbench2.h foaa.cpp
$(CC) -c foaa.cpp
moaa.o: wordbench2.h moaa.cpp
$(CC) -c moaa.cpp
wordbench2.o: wordbench2.h wordbench2.cpp wordify.cpp
$(CC) -c wordbench2.cpp
xstring.o: $(CPP)/xstring.h $(CPP)/xstring.cpp
$(CC) $(INCPATH) -c $(CPP)/xstring.cpp
wb2.x: main_wb2.o wordbench2.o xstring.o
$(CC) -o wb2.x main_wb2.o
foaa.x: foaa.o wordbench2.o xstring.o
$(CC) -o foaa.x foaa.o
moaa.x: moaa.o wordbench2.o xstring.o
$(CC) -o moaa.x moaa.o
Error
g++ -std=c++11 -Wall -Wextra -I. -I/home/courses/cop4530p/LIB/cpp -o wb2.x main_wb2.o
main_wb2.o: In function `main':
main_wb2.cpp:(.text+0xfd): undefined reference to `WordBench::WordBench()'
main_wb2.cpp:(.text+0x109): undefined reference to `fsu::String::String()'
main_wb2.cpp:(.text+0x115): undefined reference to `fsu::String::String()'
main_wb2.cpp:(.text+0x1ad): undefined reference to `fsu::operator>>(std::istream&, fsu::String&)'
main_wb2.cpp:(.text+0x1c4): undefined reference to `fsu::operator<<(std::ostream&, fsu::String const&)'
main_wb2.cpp:(.text+0x1f1): undefined reference to `fsu::operator<<(std::ostream&, fsu::String const&)'
main_wb2.cpp:(.text+0x21e): undefined reference to `fsu::operator>>(std::istream&, fsu::String&)'
main_wb2.cpp:(.text+0x235): undefined reference to `fsu::operator<<(std::ostream&, fsu::String const&)'
main_wb2.cpp:(.text+0x25d): undefined reference to `WordBench::ReadText(fsu::String const&, bool)'
main_wb2.cpp:(.text+0x28f): undefined reference to `fsu::operator>>(std::istream&, fsu::String&)'
main_wb2.cpp:(.text+0x2a6): undefined reference to `fsu::operator<<(std::ostream&, fsu::String const&)'
main_wb2.cpp:(.text+0x2d3): undefined reference to `fsu::operator<<(std::ostream&, fsu::String const&)'
main_wb2.cpp:(.text+0x300): undefined reference to `fsu::operator>>(std::istream&, fsu::String&)'
main_wb2.cpp:(.text+0x317): undefined reference to `fsu::operator<<(std::ostream&, fsu::String const&)'
main_wb2.cpp:(.text+0x33f): undefined reference to `WordBench::ReadText(fsu::String const&, bool)'
main_wb2.cpp:(.text+0x371): undefined reference to `fsu::operator>>(std::istream&, fsu::String&)'
main_wb2.cpp:(.text+0x388): undefined reference to `fsu::operator<<(std::ostream&, fsu::String const&)'
main_wb2.cpp:(.text+0x3b5): undefined reference to `fsu::operator<<(std::ostream&, fsu::String const&)'
main_wb2.cpp:(.text+0x3e2): undefined reference to `fsu::operator>>(std::istream&, fsu::String&)'
main_wb2.cpp:(.text+0x3f9): undefined reference to `fsu::operator<<(std::ostream&, fsu::String const&)'
main_wb2.cpp:(.text+0x42f): undefined reference to `WordBench::WriteReport(fsu::String const&, unsigned short, unsigned short, std::_Ios_Fmtflags, std::_Ios_Fmtflags) const'
main_wb2.cpp:(.text+0x44d): undefined reference to `fsu::String::operator=(fsu::String const&)'
main_wb2.cpp:(.text+0x45e): undefined reference to `fsu::String::Size() const'
main_wb2.cpp:(.text+0x488): undefined reference to `fsu::String::Cstr() const'
main_wb2.cpp:(.text+0x4d9): undefined reference to `fsu::operator<<(std::ostream&, fsu::String const&)'
main_wb2.cpp:(.text+0x572): undefined reference to `WordBench::ClearData()'
main_wb2.cpp:(.text+0x595): undefined reference to `WordBench::ShowSummary() const'
main_wb2.cpp:(.text+0x67a): undefined reference to `fsu::String::~String()'
main_wb2.cpp:(.text+0x686): undefined reference to `fsu::String::~String()'
main_wb2.cpp:(.text+0x695): undefined reference to `WordBench::~WordBench()'
main_wb2.cpp:(.text+0x6cb): undefined reference to `fsu::String::~String()'
main_wb2.cpp:(.text+0x6dc): undefined reference to `fsu::String::~String()'
main_wb2.cpp:(.text+0x6f0): undefined reference to `WordBench::~WordBench()'
collect2: error: ld returned 1 exit status
make: *** [wb2.x] Error 1

Answer 1

In this rule:
wb2.x: main_wb2.o wordbench2.o xstring.o
$(CC) -o wb2.x main_wb2.o
you list wordbench2.o and xstring.o in your prerequisites list, but you didn't put them onto the compile line.
Why are you rewriting the same things over and over? That just leads to silly errors like this. Use automatic variables to avoid retyping and getting things wrong:
wb2.x: main_wb2.o wordbench2.o xstring.o
$(CC) -o $# $^
Ditto for your other linker rules.