Hi, I use avr platform, but this problem might be related to other platforms too. I have a source, let's say x.cpp, containing global constructors. I compile it this way: avr-gcc -c -o x.o x.cpp avr-ld -o x x.o It works. If it is done in two steps: avr-gcc -c -o x.o x.cpp avr-ld -Ur -o y.o x.o avr-ld -o x y.o then the global constructors are not run, because the section .ctors is missing from y.o. The additional linking phase discarded it. I tried it with -r and -Ur option, both seems wrong. Creating an archive does not help me because there are no external references to those objects, and therefore it would not be linked in. How could I do it? Regards K. Gy.