I am now trying to build the Windows build with ccache. I have followed the documentation here: http://wiki.services.openoffice.org/wiki/Documentation/Building_Guide/Building_on_Windows#ccache
But I am getting this error: Entering /cygdrive/c/Backup/OpenOffice/DEV300_m84/soltools/mkdepend Compiling: soltools/mkdepend/Error: guw.pl: WinFormat: Not converted [-]X<something>(=|:)/<path> type switch in :c:/PROGRA~1/MICROS~1.0/VC/bin/cl.exe:.Error: guw.pl: WinFormat: Not converted [-]X<something>(=|:)/<path> type switch in :c:/Backup/OpenOffice/DEV300_m84/soltools/mkdepend/collectdircontent.cxx:.collectdircontent.cxx c:\backup\openoffice\dev300_m84\soltools\mkdepend\collectdircontent.hxx(6) : fatal error C1083: Cannot open include file: 'set': No such file or directory dmake: Error code 2, while making '../ wntmsci12.pro/obj/collectdircontent.obj' 1 module(s): soltools need(s) to be rebuilt Reason(s): Attention: if you fix the errors in above module(s) you may prolongue your the build issuing command: build --all:soltools dmake: Error code 1, while making 'build_instsetoo_native'