(make_window): Initialize resize_proportionally.
(enlarge_window): Temporarily set resize_proportionally to make sure that shrink_windows does scale the window proportionally. (shrink_windows): When window has resize_proportionally set try to shrink it proportionally by stealing from other windows. (struct saved_window, Fset_window_configuration) (compare_window_configurations): Handle resize_proportionally. (WINDOW_TOTAL_SIZE): New macro. (window_min_size, shrink_windows, size_window): Use it. (check_min_window_sizes): Removed. Invalid values of window-min-height|width are handled by window_min_size_2 now. (size_window, Fsplit_window, enlarge_window) (adjust_window_trailing_edge, grow_mini_window): Don't call check_min_window_sizes. (window_min_size_2, window_min_size_1, window_min_size): New argument safe_p for retrieving "safe" minimum sizes. (Fdisplay_buffer, Fsplit_window, enlarge_window): (adjust_window_trailing_edge, grow_mini_window): Adjust arguments of window_min_size... functions. (shrink_windows): Argument min_size removed. New argument safe_p allows shrinking windows to their safe minimum sizes. Calculate minimum size and decide whether a window shall be deleted for each window individually. (size_window): When nodelete_p equals 2, tell shrink_windows to delete windows only if their new minimum size is no more safe. (shrink_window_lowest_first): Call window_min_size_1 to make sure to preserve modeline of bottom-most window when resizing the minibuffer. (Fset_window_configuration, Fcurrent_window_configuration) (compare_window_configurations): Do not handle window-min-height|width any more. (syms_of_window): Clarify window-min-height|width doc-strings.
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