I have tried for the first time to use dwarf-2 debugging with the last gpc version (20030507 / gcc 3.2.2) and DJGPP (it is the default now). I use either gdb 5.3 (last djgpp distribution) or rhide 1.5.0.1 (last snapshot, said to incorporate the same gdb version). In any case when I try to set a breakpoint, I obtain an error message: internal error - unimplemented function unk_lang_create_fundamental_type called. Any other experience on other systems / version ? Everything is correct with stabs debugging, and also when debugging C programs. Maurice -- Maurice Lombardi Laboratoire de Spectrometrie Physique, Universite Joseph Fourier de Grenoble, BP87 38402 Saint Martin d'Heres Cedex FRANCE Tel: 33 (0)4 76 51 47 51 Fax: 33 (0)4 76 63 54 95 mailto:Maurice.Lombardi@ujf-grenoble.fr