Hi, with this patch sal/rtl/source/macro.hxx is merged into configure process and rtlbootstrap.mk is not generated any more. Btw, it seems that we still do not have native 64-bit MacOS X port, why? cat configure.in [...] darwin*) [...] i*86|x86_64) CPU=I CPUNAME=INTEL RTL_ARCH=x86 [...] Ciao David