Problem in malloc.c, rev. 1.183 while building phonon-4.2.0

Hello.

I ran into an error while attempting to build kde4 from source in 
FreeBSD 8.0-CURRENT:

FreeBSD sia.prismequine.com 8.0-CURRENT FreeBSD 8.0-CURRENT #3: Sun Nov 
30 13:49:59 CST 2008 
root_at_sia.prismequine.com:/usr/obj/usr/src/sys/GENERIC  i386

where phonon-4.2.0 failed due to what appears to be an issue with the # 
of processors (1) and waiting for a lock?

The relevant portions of the build messages are below.  I should note 
that I updated my source yesterday around 4PM CST, ran into the build 
problem overnight (I kicked off an install and then went to bed).  I 
noted the error, checked cvs and noted that a newer version of malloc.c 
had been committed.  At that point, I resynced my source and re-started 
the build.  However, the error remains the same.

I'm running on a P4, 2.40Ghz system if that helps.

Build error:

Linking CXX executable backendtester
cd /usr/ports/multimedia/phonon/work/phonon-4.2.0/build/phonon/tests && 
/usr/local/bin/cmake -E cmake_link_script 
CMakeFiles/backendtester.dir/link.txt --verbose=1
/usr/bin/c++   -O2 -fno-strict-aliasing -pipe -Woverloaded-virtual 
-fvisibility=hidden -fvisibility-inlines-hidden -Wnon-virtual-dtor 
-Wno-long-long -ansi -Wundef -Wcast-align -Wchar-subscripts -Wall -W 
-Wpointer-arith -Wformat-security -fno-check-new -fno-common -g -O2 
-fno-reorder-blocks -fno-schedule-insns -fno-inline  -fPIC 
CMakeFiles/backendtester.dir/backendtester_automoc.o 
CMakeFiles/backendtester.dir/backendtester.o  -o backendtester 
-L/usr/local/lib/qt4 /usr/local/lib/qt4/libQtCore.so -lpthread 
/usr/local/lib/qt4/libQtGui.so -Wl,-rpath,/usr/local/lib/qt4
/usr/local/bin/cmake -E cmake_progress_report 
/usr/ports/multimedia/phonon/work/phonon-4.2.0/build/CMakeFiles  33 34 35
[ 39%] Built target backendtester
make -f phonon/tests/CMakeFiles/mediaobjecttest.dir/build.make 
phonon/tests/CMakeFiles/mediaobjecttest.dir/depend
cd /usr/ports/multimedia/phonon/work/phonon-4.2.0/build/phonon/tests && 
/usr/local/kde4/bin/automoc4 
/usr/ports/multimedia/phonon/work/phonon-4.2.0/build/phonon/tests/mediaobjecttest_automoc.cpp 
/usr/ports/multimedia/phonon/work/phonon-4.2.0/phonon/tests 
/usr/ports/multimedia/phonon/work/phonon-4.2.0/build/phonon/tests 
/usr/local/bin/moc-qt4 /usr/local/bin/cmake --touch
Generating mediaobjecttest.moc
Assertion failed: ((ret << BLOCK_COST_2POW) != 0), function 
malloc_spin_lock, file /usr/src/lib/libc/stdlib/malloc.c, line 1287.
Abort trap (core dumped)
*** Error code 134

Stop in /usr/ports/multimedia/phonon/work/phonon-4.2.0/build.
*** Error code 1

Stop in /usr/ports/multimedia/phonon/work/phonon-4.2.0/build.
*** Error code 1

Stop in /usr/ports/multimedia/phonon/work/phonon-4.2.0/build.
*** Error code 1

Stop in /usr/ports/multimedia/phonon.
*** Error code 1

Stop in /usr/ports/x11/kdelibs4.
*** Error code 1

Stop in /usr/ports/accessibility/kdeaccessibility4.
*** Error code 1

Stop in /usr/ports/x11/kde4.
*** Error code 1

Stop in /usr/ports/x11/kde4.


Thanks.