On Wed, 2015-02-18 at 10:53 +0000, Warlich, Christof wrote: > Can anyone guess why make does not play well with fakechroot w.r.t. > $(wildcard )? Many thanks for any hints,
Yeah... this is because of GNU make's internal file cache. It's based solely on directory pathnames, rather than something like inodes (not as portable). When glob() wants to open a given directory, it calls a GNU make function (open_dirstream) which will use an internal cache of the contents of that directory (if it exists) rather than reading it from the disk. As above the lookup in the cache is by fully-qualified filename, and it doesn't know its in a chroot now. The performance benefits of this cache are not insignificant, since make does a LOT of searching for files in directories. But it does cause problems as well, this is just the latest. I've long considered it would be a good idea to allow makefiles to disable the cache if they wanted to, but such a capability hasn't been implemented. See https://savannah.gnu.org/bugs/index.php?41273 _______________________________________________ Help-make mailing list Help-make@gnu.org https://lists.gnu.org/mailman/listinfo/help-make
