Hi! All of a sudden, I can't link my programs any longer. This affects all my programs, which I build with a shared Makefile. But I haven't changed the Makefile... I get messages like this (indentation by me): cc build/sicherung.o build/Hsskripte.o build/Sicherung.o build/SicherungAktionen.o build/Text.o build/Wahl.o build/Zeit.o build/hssk.o -o build/sicherung /usr/bin/ld: build/sicherung.o: relocation R_X86_64_32S against undefined symbol `stg_upd_frame_info' can not be used when making a PIE object; recompile with -fPIC /usr/bin/ld: build/Hsskripte.o: relocation R_X86_64_32S against `.text' can not be used when making a PIE object; recompile with -fPIC ... more like this ... /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/Scrt1.o: In function `_start': (.text+0x20): undefined reference to `main' /usr/bin/ld: final link failed: Invalid operation collect2: error: ld returned 1 exit status I've attached the complete build messages. I've never dealt with position independent code. I've tried that "- fPIC" switch, but this produces lots of new error messages. Any idea of what's wrong? Bye, V.W.