Hi, The attached patch is a micro-optimization that uses the zip file contents instead of directory scans and uses perl's builtin chmod function to modify the permissions of the files. I have only tested on Linux where a simple "time" test showed it cut 10 seconds off my make dev-install time from 1:25 to 1:15 minutes on a Core i5 system. I don't have a build environment I can use to test on Windows but the code should be relatively straightforward compared for the DLL processing to get right. Testing by others who have a windows build setup would be appreciated as the cost of fork might cause a more significant reduction on that platform. I don't really understand what this installer is doing yet so I thought I'd just get my feet wet by doing this suggested micro-optimization until I have a bit more time to look at what it's doing. I did notice the whole process seems heavily CPU bound for most of its duration, but that might be the unzip process. Regards Steve
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