I could not do it right away, but I finaly managed to download 21.4.12, change configure by adding: *-*-aix5.0 ) opsys=aix5 ;; *-*-aix5.1 ) opsys=aix5-1 ;; and adding the two file "aix5.h" and "aix5-1.h" in src/s

I checked that oslevel returns 5100-3, the latest maintenance package. I have added fixes from the IBM site regularly using the "new this month" feature. VIsual Age C is at the latest level (6.0.0.1) llpchk -v does not return anything. The compilations goes as before, with the same messages about _ALL_SOURCE.... and xemacs still crashes with the same problem I reported. It works if one is not in X11 mode though. I have to say the last time I udpated in december (no fixes appeared in January that concern the system) mozilla 1.2.1 (binary downloaded from mozzila.org) which worked fine before core dump as well. I never had this kind of problem with AIX before (at least not since I started using 4.1...)

I may just have missed a few fixes. The IBM web site lacks a "check my system and download all the latest fixes which are good for it" function....