Do parallel (make -j) builds work for Mozilla?
Yes. See the GNU Make Parallel Execution manual entry for optimal usage. If you get obscure build errors when using parallel building (especially when using -j instead of -jN to run as many tasks in parallel as possible), try reducing the number of parallel tasks by decreasing N (or, if you used unlimited parallelism, add a small number N to -j). Parallel building with -j4 and -j8 seems to work well. Note that you have to add the -j option to your .
