AT_BISON_CHECK([-o test.c test.y], 1, [],
[[test.y:11.23: error: invalid character in bracketed name: '*'
test.y:11.24: error: invalid character in bracketed name: '&'
test.y:11.25: error: invalid character in bracketed name: '-'
test.y:11.27: error: invalid character in bracketed name: '+'
AT_BISON_CHECK([-o test.c test.y], 1, [],
[[test.y:11.23: error: invalid character in bracketed name: '*'
test.y:11.24: error: invalid character in bracketed name: '&'
test.y:11.25: error: invalid character in bracketed name: '-'
test.y:11.27: error: invalid character in bracketed name: '+'