Hello, as someone of you eventuelly know through past posts by me I made some adjustments to libjava (target: decrypt classes on-the-fly). Though I have to make changes to the file defineclass.cc in libjava (by advice of Andrew Haley). I'm relativly new to the compiling process of GCC! So I've build GCC 4.1.0 without any changes. That was successful. Afterwards I adjusted the Makefile.in (added include dirs and libs for the linker process) and copied my defineclass.cc to libjava. It worked also. Because of changes only to 2 files in libjava I don't want to build the whole GCC again and again if an error appears because of my code. What have I to do to build only the files in libjava (including my code)? Is there a faster possibility to compile incremental respectively the possibility of using ccache or something? thx in advance Toni -- "Feel free" - 10 GB Mailbox, 100 FreeSMS/Monat ... Jetzt GMX TopMail testen: http://www.gmx.net/de/go/topmail