diff --git a/wrap_Matlab/mexAll.m b/wrap_Matlab/mexAll.m
index be6f1189..d0d7ae63 100644
--- a/wrap_Matlab/mexAll.m
+++ b/wrap_Matlab/mexAll.m
@@ -12,16 +12,31 @@
 % Add path to the c file names
 includeFiles = cellfun(@(x) fullfile(basePath, x), CFileNames, 'UniformOutput', false);
 
+% Compile the shared files (M_wrapper.c plus everything in basePath) to
+% object files once, rather than recompiling all of them from source for
+% every one of the ~24 features below:
+sourcesToCache = [{'M_wrapper.c'}, includeFiles];
+objDir = tempname;
+mkdir(objDir);
+cleanupObj = onCleanup(@() rmdir(objDir,'s'));
+fprintf('Compiling %u shared C files (once)...\n',numel(sourcesToCache));
+for i = 1:numel(sourcesToCache)
+    mex(ipath{:}, '-c', '-outdir', objDir, sourcesToCache{i});
+end
+objFiles = dir(objDir);
+objFiles = fullfile(objDir, {objFiles(~[objFiles.isdir]).name});
+
 % Get function names
 featureNames = GetAllFeatureNames(true);
 
-% mex all feature functions separately
+% mex all feature functions separately, linking each against the cached
+% shared objects instead of recompiling them
 numFeatures = length(featureNames);
 for i = 1:numFeatures
     featureName = featureNames{i};
 
     fprintf('[%u/%u]: Compiling %s...\n', i,numFeatures,featureName);
-    mex(ipath{:}, ['catch22_', featureName,'.c'], 'M_wrapper.c', includeFiles{:})
+    mex(ipath{:}, ['catch22_', featureName,'.c'], objFiles{:})
     fprintf('\n');
 end