Adding files

 #!/gnu/usr/bin/bash
 CXXFLAGS="-Wall  -g  -ansi  -pedantic"
 LDFLAGS="-lm"
 FILES="file1  file2  file3  file4"

 for  file  in  $FILES;  do
         g++  $CXXFLAGS  -c  ${file}.cc
         OBJS="$OBJS  ${file}.o"
 done
 g++  $CXXFLAGS  $LDFLAGS  -o  prog  \ 
                                                        $OBJS