Dear J�rgen, Apparently S4 uses gcc 2.7.2.3
Here is sample of error message: make[3]: Entering directory `/tar/xclasses/code/gadget' gadget.cxx g++ -march=i486 -falign-loops=2 -falign-jumps=2 -falign-functions=2 -O3 -Winline -Wuninitialized -Wunused -Wreturn-type -Wreorder -I../../include -I/usr/openwin/include -I/usr/local/include -I/usr/local/include -DNO_NANOSLEEP -D__Linux__ '-DCONFIGSDIR="/usr/lib/X11/Xclasses"' -DROOTID=0 '-DCCVERSION="2.7.2.3"' -D_REENTRANT -DSHAPE -c -fPIC -DPIC gadget.cxx cc1plus: Invalid option `-falign-loops=2' cc1plus: Invalid option `-falign-jumps=2' cc1plus: Invalid option `-falign-functions=2' make[3]: *** [gadget.o] Error 1 Regards, David Pilgram
