gcc/testsuite/gdc.test/compilable/testheader2.d

/*
EXTRA_SOURCES: extra-files/header2.d
REQUIRED_ARGS: -o- -H -Hf${RESULTS_DIR}/compilable/testheader2.di
PERMUTE_ARGS:
OUTPUT_FILES: ${RESULTS_DIR}/compilable/testheader2.di
TEST_OUTPUT_FILE: extra-files/header2.di
*/

void main() {}