compiling mozilla with jobserver

[Jon Leven]

hi,
Are there any special switches I need to pass to configure to allow for
parallel make?  I am compiling on Linux, using make -j 4, and I consistently
get errors... here's an example.

/bin/sh: Linux2.2.14_x86_PTH_DBG.OBJ/_pl_bld.h: No such file or directory
gmake[4]: *** [Linux2.2.14_x86_PTH_DBG.OBJ/_pl_bld.h] Error 1
gmake[4]: *** Waiting for unfinished jobs....

thanks!
-jl