mold/test/duplicate-error.sh

#!/bin/bash
set -e
echo -n "Testing $(basename -s .sh $0) ..."
t=$(pwd)/tmp/$(basename -s .sh $0)
mkdir -p $t

cat <<EOF | cc -o $t/a.o -c -x assembler -
  .text
  .globl main
main:
  nop
EOF

! ../mold -o $t/exe $t/a.o $t/a.o 2> $t/log
grep -q 'duplicate symbol: .*\.o: .*\.o: main' $t/log

echo ' OK'