Please use underscores to separate words in a name, so that the Emacs word commands can be useful within them. Stick to lower case; reserve upper case for macros and enum constants, and for name-prefixes that follow a uniform convention.
For example, you should use names like ignore_space_change_flag;
don't use names like iCantReadThis.
Variables that indicate whether command-line options have been specified should be named after the meaning of the option, not after the option-letter. A comment should state both the exact meaning of the option and its letter. For example,
/* Ignore changes in horizontal whitespace (-b). */ int ignore_space_change_flag;
When you want to define names with constant integer values, use
enum rather than `#define'. GDB knows about enumeration
constants.
Use file names of 14 characters or less, to avoid creating gratuitous problems on System V.