Sat Apr 24 14:39:32 1999  Morten Welinder  <terra@diku.dk>

	* src/sheet.c (sheet_selection_reset_only): Remove useless
 	initialisation.  Don't free individual selections here.

	(sheet_selections_free): Walk the list of selections and free each
 	one.

	(sheet_get_selection_name): Calculate buffer size based on the
 	size of an int.

	* src/fn-eng.c: Remove sqrtpi function -- it's already in fn-math.c

	* src/fn-math.c (gnumeric_sqrtpi): Add range check.

	* src/symbol.c (symbol_install): Add sanity check.