repo.c (rindex): Add decl unconditionally.

repo.c (rindex): Add decl unconditionally.

	* repo.c (rindex): Add decl unconditionally.
	(get_base_filename, open_repo_file): Don't cast rindex.
	* xref.c (rindex): Add decl unconditionally.
	(index): Remove unused decl.
	(open_xref_file): Don't cast rindex.

fix potential problems with 64-bit compilers and casting an int up to a char*

From-SVN: r16306