Build breaks under Windows

Hi all,

i see in Jenkins and in my Build 4.5 master following errors

[build UPK] graphite2-1.2.4.tgz
C:/cygwin/home/tdf/lode/jenkins/workspace/lo_gerrit_master/Gerrit/Gerrit/Platform/Windows/sal/systools/win32/uwinapi/legacy.c
 : fatal error C1041: cannot open program database 
'c:cygwinhometdflodejenkinsworkspacelo_gerrit_mastergerritgerritplatformwindowsworkdirlinktargetlibraryuwinapi.dll.objects.pdb';
 if multiple CL.EXE write to the same .PDB file, please use /FS
C:/cygwin/home/tdf/lode/jenkins/workspace/lo_gerrit_master/Gerrit/Gerrit/Platform/Windows/sal/systools/win32/uwinapi/snprintf.c
 : fatal error C1041: cannot open program database 
'c:cygwinhometdflodejenkinsworkspacelo_gerrit_mastergerritgerritplatformwindowsworkdirlinktargetlibraryuwinapi.dll.objects.pdb';
 if multiple CL.EXE write to the same .PDB file, please use /FS
C:/cygwin/home/tdf/lode/jenkins/workspace/lo_gerrit_master/Gerrit/Gerrit/Platform/Windows/solenv/gbuild/LinkTarget.mk:138:
 recipe for target 
'C:/cygwin/home/tdf/lode/jenkins/workspace/lo_gerrit_master/Gerrit/Gerrit/Platform/Windows/workdir/CObject/sal/systools/win32/uwinapi/snprintf.o'
 failed
make[2]: accessibility aclocal.m4 android animations apple_remote autogen.sh autom4te.cache avmedia 
basctl basebmp basegfx basic bean bin binaryurp bridges build.log canvas chart2


Yesterday at 12:00 the build was stop on the unit-test 
(http://lists.freedesktop.org/archives/libreoffice/2015-January/065687.html), but after 15:00 I get 
this errors

Under Linux build is always okay.


My autogen.input is

--enable-pch
--disable-ccache
--enable-dbgutil
--with-external-tar=/cygdrive/d/src/lo/externalsrc
--with-ant-home=/cygdrive/d/src/lo/apache-ant-1.9.4
--with-junit=/cygdrive/d/src/lo/junit-4.10.jar
--with-visual-studio=2013
--disable-activex 
--disable-atl
--with-lang=de en-GB



Have everywhere an idea?





Juergen