xpctools_private.h:61:60: nsSpecialSystemDirectory.h: No such fileor directory

[Ljósálfr]

When I try to 'make -f client.mk' with the following ~/.mozconfig, I get 
a failure as reported in the dump below. Do I need to upgrade my libs 
somewere? Is it me, or is it you?  Thanks for any help.

# sh
# Build configuration script
#
# See http://www.mozilla.org/build/unix.html for build instructions.
#
# Options for client.mk.
# mk_add_options MOZ_MAKE_FLAGS=-j5
# Options for 'configure' (same as command-line options).
ac_add_options --prefix=/home/hattons/local/mozilla
ac_add_options --exec-prefix=/home/hattons/local/mozilla
ac_add_options --enable-calendar
ac_add_options --enable-crypto
ac_add_options --enable-ldap-experimental
#ac_add_options --disable-tests
ac_add_options --enable-xpctools
ac_add_options --disable-debug
ac_add_options --enable-reorder
mk_add_options MOZ_INTERNAL_LIBART_LGPL=1
MOZ_INTERNAL_LIBART_LGPL=1
############### End .mozconfig ##############



make[5]: Entering directory 
`/download/org/mozilla/repository/mozilla/js/src/xpconnect/tools/src'
nsXPCToolsCompiler.cpp
c++ -o nsXPCToolsCompiler.o -c -DOSTYPE=\"Linux2.4\" -DOSARCH=\"Linux\" 
-DOJI -DJSFILE -DJS_THREADSAFE  -I../../../../../dist/include/xpcom -I.
./../../../../dist/include/xpconnect -I../../../../../dist/include/js 
-I../../../../../dist/include/string -I../../../../../dist/include/xpctoo
ls -I../../../../../dist/include 
-I/download/org/mozilla/repository/mozilla/dist/include/nspr 
-I/usr/X11R6/include   -fPIC  -I/usr/X11R6/i
nclude -fno-rtti -fno-exceptions -Wall -Wconversion -Wpointer-arith 
-Wcast-align -Woverloaded-virtual -Wsynth -Wno-ctor-dtor-privacy -pedantic
-Wno-long-long -fshort-wchar -pthread -pipe  -DNDEBUG -DTRIMMED 
-ffunction-sections  -I/usr/X11R6/include -DMOZILLA_CLIENT -include 
../../../..
/../mozilla-config.h -Wp,-MD,.deps/nsXPCToolsCompiler.pp 
nsXPCToolsCompiler.cpp
In file included from nsXPCToolsCompiler.cpp:38:
xpctools_private.h:61:60: nsSpecialSystemDirectory.h: No such file or 
directory
make[5]: *** [nsXPCToolsCompiler.o] Error 1
make[5]: Leaving directory 
`/download/org/mozilla/repository/mozilla/js/src/xpconnect/tools/src'
make[4]: *** [libs] Error 2
make[4]: Leaving directory 
`/download/org/mozilla/repository/mozilla/js/src/xpconnect/tools'
make[3]: *** [libs] Error 2
make[3]: Leaving directory 
`/download/org/mozilla/repository/mozilla/js/src/xpconnect'
make[2]: *** [tier_9] Error 2
make[2]: Leaving directory `/download/org/mozilla/repository/mozilla'
make[1]: *** [default] Error 2
make[1]: Leaving directory `/download/org/mozilla/repository/mozilla'
make: *** [build] Error 2