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% gcc -v
:
gcc version 5.5.0 (nb2 20180327)
% cat > test.c
#include <stdio.h>
int main(){printf("Hello World.\n");}
% cc test.c
cc1: internal compiler error: Illegal instruction
no stack trace because unwind library not available
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://www.NetBSD.org/support/send-pr.html> for instructions.
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悲しいなあ（このバグに誰も気づいていないということが）