HelenOS sources

GZIP_FLAG_FNAME    47 boot/generic/src/gzip.c #define GZIP_FLAG_FNAME     UINT8_C(1 << 3)
GZIP_FLAG_FNAME    46 uspace/lib/compress/gzip.c #define GZIP_FLAG_FNAME     UINT8_C(1 << 3)
HelenOS homepage, sources at GitHub