compile all library source code:
gcc -c [file.c]
bundle them into a library
rm .\mylib.a
ar rcs .\mylib.a *.o
update library with single new compiled source code
gcc -c [file.c]
ar rcs .\mylib.a [file.o]
compile the main source file
gcc .\src\main.c .\mylib.a -o .\textFixer.exe