[Libreoffice] Debug compilation fails in sal module

Hello,

I recreated from scratch my local repository and here is what I get :
----------------------------------------------------------
- start unit test #2 on library ../../../unxlngi6/lib/libosl_process.so
----------------------------------------------------------
: &&     
LD_LIBRARY_PATH=/home/maryline/compile-libreoffice/libo/clone/ure/sal/unxlngi6/lib:/home/maryline/compile-libreoffice/libo/solver/350/unxlngi6/lib${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}   
../../../unxlngi6/bin/cppunittester ../../../unxlngi6/lib/libosl_process.so
Error: File 
/home/maryline/compile-libreoffice/libo/clone/ure/sal/cpprt/operators_new_delete.cxx, 
Line 96: operator delete mismatch
Error: File 
/home/maryline/compile-libreoffice/libo/clone/ure/sal/cpprt/operators_new_delete.cxx, 
Line 96: operator delete mismatch
OK (2)
/bin/bash: line 1:  9574 Segmentation fault      
LD_LIBRARY_PATH=/home/maryline/compile-libreoffice/libo/clone/ure/sal/unxlngi6/lib:/home/maryline/compile-libreoffice/libo/solver/350/unxlngi6/lib${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}} 
../../../unxlngi6/bin/cppunittester ../../../unxlngi6/lib/libosl_process.so
dmake:  Error code 139, while making 'test2'

Here is the autogen.lastrun :
--enable-symbols
--enable-binfilters
--enable-ext-barcode
--enable-ext-diagram
--enable-ext-google-docs
--enable-ext-hunart
--enable-ext-lightproof
--enable-ext-nlpsolver
--enable-ext-ct2n
--enable-ext-numbertext
--enable-ext-oooblogger
--enable-ext-pdfimport
--enable-ext-presenter-console
--enable-ext-presenter-minimizer
--enable-ext-report-builder
--enable-ext-scripting-beanshell
--enable-ext-scripting-javascript
--enable-ext-scripting-python
--enable-ext-typo
--enable-ext-validator
--enable-ext-watch-window
--enable-ext-wiki-publisher
--enable-dbus
--enable-graphite
--enable-evolution2
--enable-werror
--enable-debug
--enable-dbgutil
--enable-crashdump
--enable-kde4
--enable-dependency-tracking

I took a look at the git history of sal module and found nothing special.

(gcc (Debian 4.6.0-10) 4.6.1 20110526 (prerelease), on Debian testing x86)

Any ideas ?

Julien.