Hi,
latest source wont compile due to no backtrace.h in the tree..

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/work/qnx632/host/linux/x86/usr/bin/qcc -V4.2.1,gcc_ntoarm -c -O -Wc,-Wall -Wc,-Wno-parentheses -Wc,-fno-builtin  -
DMALLOC_WRAPPER -D_LIBMALLOC -UMALLOC_WRAPPER -DMALLOC_GUARD -DMALLOC_PC -I/usr/local/src/qnx/src/core_os/trunk/lib/
malloc/public/malloc -DNDEBUG   -I. -I/usr/local/src/qnx/src/core_os/trunk/lib/malloc/arm/so.be -I/usr/local/src/qnx/src
/core_os/trunk/lib/malloc/arm -I/usr/local/src/qnx/src/core_os/trunk/lib/malloc -I/usr/local/src/qnx/src/core_os/trunk/
lib/malloc/std -I/usr/local/src/qnx/src/core_os/trunk/lib/malloc/common -I/usr/local/src/qnx/src/core_os/trunk/lib/c/
alloc -I/usr/local/src/qnx/src/core_os/trunk/lib/malloc/public -I/usr/local/src/qnx/stage/usr/include -I/work/qnx632/
target/qnx6/usr/include      -EB  -shared   -DVARIANT_so -DVARIANT_be -Wc,-fno-strict-aliasing /usr/local/src/qnx/src/
core_os/trunk/lib/c/alloc/_calloc.c 
In file included from /usr/local/src/qnx/src/core_os/trunk/lib/malloc/public/malloc_g/malloc-lib.h:219,
                 from /usr/local/src/qnx/src/core_os/trunk/lib/malloc/public/malloc/malloc.h:161,
                 from /usr/local/src/qnx/stage/usr/include/stdlib.h:36,
                 from /usr/local/src/qnx/src/core_os/trunk/lib/c/alloc/_calloc.c:21:
/usr/local/src/qnx/src/core_os/trunk/lib/malloc/mallocint.h:152:23: error: backtrace.h: No such file or directory
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