Search notes:

VIM: src/version.c

version.c contains, among others the static char *(features[]) array that is intialized depending on the various HAVE_… macros:

static char *(features[]) =
{
…
#ifdef FEAT_DIFF
	"+diff",
#else
	"-diff",
#endif
…
}

It also contains an array that lists the *included patches:

static int included_patches[] =
{ 
…
}

intro_message()

Give an introductory message about Vim.

Only used when