Hi Arch-General, Further to the /. discussion about PGO Firefox builds [ http://slashdot.org/article.pl?sid=08/02/27/2049258 ], I decided to give it a try out of curiosity. I just simply followed the instructions of Mozilla website about PGO builds [ http://developer.mozilla.org/en/docs/Building_with_Profile-Guided_Optimizati... ] using an up-to-date CVS tree. So I just have few questions about this: - Is Arch planning to provide PGO builds once FF3 is released ? - Did anyone try to build FF3 wih PGO ? If yes, how did you manage to build it as user ? Using the 'default process' will require root privilege otherwise it will fail because of a simple permission problem. (firefox-bin:8960): libgnomevfs-WARNING **: Unable to create ~/.gnome2 directory: Permission denied Could not create per-user gnome configuration directory `/root/.gnome2/': Permission denied make: *** [profiledbuild] Error 1 ==> ERROR: Build Failed. Aborting... To launch FF between the 2 builds, I used the simple script of the mozilla doc (Cf. link above): #!/bin/sh export NO_EM_RESTART=1 mkdir $OBJDIR/_profileprofile $OBJDIR/dist/bin/firefox -no-remote -profile $OBJDIR/_profileprofile As root, everything is working as expected. The point is that running FF (to 'build' the profile) as root is really something that I would like to avoid for obvious reasons. Thanks a lot in advance for any suggestion/advice.