extra/innochecksum.c:
Define _XOPEN_SOURCE in order to include getopt.h when needed.
The problem is that some platforms (for instance,
SuSE 9.1/gcc-3.3.3) do not include getopt.h unless _XOPEN_SOURCE
is defined, so optarg is undefined and the compiler complains.
Changed from C++ comments to C comments
Did some adaption to MySQL Coding Style
extra/innochecksum.c:
Changed from C++ comments to C comments
Did some adaption to MySQL Coding Style