Lots of C errors

[ashokkushh]

On executing make file lot of redefinition of variables

gcc -ansi acotsp.o TSP.o utilities.o ants.o InOut.o timer.o parse.o ls.o -o acotsp -O -lm
/usr/bin/ld: TSP.o:(.bss+0x100): multiple definition of n'; acotsp.o:(.bss+0x8): first defined here /usr/bin/ld: TSP.o:(.bss+0xf8): multiple definition of distance'; acotsp.o:(.bss+0x0): first defined here
/usr/bin/ld: utilities.o:(.bss+0x0): multiple definition of distance'; acotsp.o:(.bss+0x0): first defined here /usr/bin/ld: utilities.o:(.bss+0x8): multiple definition of n'; acotsp.o:(.bss+0x8): first defined here
/usr/bin/ld: ants.o:(.bss+0xc8): multiple definition of n'; acotsp.o:(.bss+0x8): first defined here /usr/bin/ld: ants.o:(.bss+0xc0): multiple definition of distance'; acotsp.o:(.bss+0x0): first defined here
/usr/bin/ld: InOut.o:(.bss+0x160): multiple definition of n'; acotsp.o:(.bss+0x8): first defined here /usr/bin/ld: InOut.o:(.bss+0x158): multiple definition of distance'; acotsp.o:(.bss+0x0): first defined here
/usr/bin/ld: ls.o:(.bss+0x18): multiple definition of n'; acotsp.o:(.bss+0x8): first defined here /usr/bin/ld: ls.o:(.bss+0x10): multiple definition of distance'; acotsp.o:(.bss+0x0): first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:3: acotsp] Error 1