cmake HAVE_STRUCT_STATFS examples

libarchive/libarchive CMakeLists.txt :1587 

CHECK_C_SOURCE_COMPILES(
  "#include <sys/types.h>\n#include <sys/mount.h>\nint main(void) { struct statfs s; return sizeof(s);}"
  HAVE_STRUCT_STATFS)

libarchive/libarchive CMakeLists.txt :1658 

ENDIF(HAVE_STRUCT_STATFS)