/tmp/ccnXIRsQ.o: In function `main':
foo.cc:(.text.startup+0x7): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccnXIRsQ.o
foo.cc:(.text.startup+0x26): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccnXIRsQ.o
foo.cc:(.text.startup+0x36): relocation truncated to fit: R_X86_64_PC32 against symbol `a' defined in .bss section in /tmp/ccnXIRsQ.o
foo.cc:(.text.startup+0x3d): relocation truncated to fit: R_X86_64_PC32 against symbol `a' defined in .bss section in /tmp/ccnXIRsQ.o
foo.cc:(.text.startup+0x44): relocation truncated to fit: R_X86_64_PC32 against symbol `x' defined in .bss section in /tmp/ccnXIRsQ.o
foo.cc:(.text.startup+0x60): relocation truncated to fit: R_X86_64_PC32 against symbol `x' defined in .bss section in /tmp/ccnXIRsQ.o
foo.cc:(.text.startup+0x6b): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccnXIRsQ.o
foo.cc:(.text.startup+0x10c): relocation truncated to fit: R_X86_64_PC32 against symbol `a' defined in .bss section in /tmp/ccnXIRsQ.o
foo.cc:(.text.startup+0x159): relocation truncated to fit: R_X86_64_PC32 against symbol `a' defined in .bss section in /tmp/ccnXIRsQ.o
/tmp/ccnXIRsQ.o: In function `_GLOBAL__sub_I_n':
foo.cc:(.text.startup+0x263): relocation truncated to fit: R_X86_64_PC32 against `.bss'
foo.cc:(.text.startup+0x281): additional relocation overflows omitted from the output
collect2: error: ld returned 1 exit status