function buildGangliaLibrary(maskdir,saveloc)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Saves a .mat library after identifying all the ganglia in a directory
% Inputs:
%     - maskdir: location of all the .mat files with the masks
%     - saveloc: location where to save the library as mat; if filename is
%     absent from path, the default name will be lib_ganglia
% Output:
%     - savedir: location where the ganglia library will be saved
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

if ~isfile(saveloc)
    saveloc = fullfile(saveloc,'lib_ganglia.mat');
end

A = dir(fullfile(maskdir, '*masks.mat'));
if isempty(A)
    warning('Unable to locate masks in %s', maskdir)
end

all_masks = {};
for ii=1:length(A)
    [gangmask, ~] = makeGanglia_search(fullfile(A(ii).folder,A(ii).name));
    if isempty(gangmask), continue; end
    all_masks = [all_masks gangmask];
end
gangmask = all_masks;
save(saveloc,"gangmask")