/usr/local/mpich/mpich-1.2.7p1-gcc-ethernet/bin/mpif77 -O3 MAIN.o write_output.o read_population.o write_population.o collide.o initial_conditions.o stream.o communicate.o  -o lbm.x
MAIN.o(.text+0x12f): In function `MAIN__':
: relocation truncated to fit: R_X86_64_PC32 directions_
read_population.o(.text+0x106): In function `read_population_':
: relocation truncated to fit: R_X86_64_PC32 directions_
read_population.o(.text+0x170): In function `read_population_':
: relocation truncated to fit: R_X86_64_PC32 directions_
read_population.o(.text+0x1ac): In function `read_population_':
: relocation truncated to fit: R_X86_64_PC32 directions_
read_population.o(.text+0x1e8): In function `read_population_':
: relocation truncated to fit: R_X86_64_PC32 directions_
read_population.o(.text+0x224): In function `read_population_':
: relocation truncated to fit: R_X86_64_PC32 directions_
read_population.o(.text+0x260): In function `read_population_':
: relocation truncated to fit: R_X86_64_PC32 directions_
read_population.o(.text+0x29c): In function `read_population_':
: relocation truncated to fit: R_X86_64_PC32 directions_
read_population.o(.text+0x2d8): In function `read_population_':
: relocation truncated to fit: R_X86_64_PC32 directions_
read_population.o(.text+0x314): In function `read_population_':
: relocation truncated to fit: R_X86_64_PC32 directions_
read_population.o(.text+0x350): In function `read_population_':
: additional relocation overflows omitted from the output
make: *** [lbm.x] Error 1