Is anyone having success with running 21.4.19 built with gcc 4.1? The package currently in Fedora Extras 5 isn't working too impressively; among the reported things are at least: non-ASCII chars in buffers being rendered somewhat larger than ASCII; various crashes, for example in M-x man netstat if built with -fstack-protector, and others with gnus; random infinite loops in gnus, crashes at startup using certain locales (not reproducible everywhere). Rebuilding the same package with gcc 3.2.3 appears to avoid most if not all of the above problems on the exact same systems. https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=183643 FYI, attached is the warning output from the build when built with gcc 4.1 on a x86_64.

>>>> "Jerry" == Jerry James <james(a)xemacs.org&gt; writes:

>>>>> "Jerry" == Jerry James <james(a)xemacs.org&gt; writes: Jerry> I have a couple of x86_64 machines now and noticed that we Jerry> don't have an m/ file for them. Martin (and maybe Ben) put some effort into getting rid of the s/m files. Not a lot (if it ain't broke, don't fix it). Martin definitely wanted rid of them.

I suspect that -fno-strict-aliasing may only affect the TTY code but I think that we should enable it by default anyway. I've been drawing up some patches to fix gcc 4.1 problems with 21.5. In the little testing that I've done I haven't seen Ville's problems (maybe its because I'm on a Mac?) but -fno-strict-aliasing removes an enormous number of warnings in the tty code caused by CONSOLE_TYPE_DATA().

A somewhat minimal reproducer for one of the reported crashes (also with vanilla 21.4.19) is this in init.el: (require 'un-define) (set-default-coding-systems 'utf-8) (set-coding-priority-list '(utf-8)) (set-coding-category-system 'utf-8 'utf-8) ...LANG=en_US.UTF-8 and XEmacs built with: export CFLAGS="-O2 -g -fstack-protector" ./configure --pdump --with-mule --without-wnn And to trigger the crash, M-x manual-entry RET netstat RET

Ville Skyttä <scop(a)xemacs.org&gt; wrote: > A somewhat minimal reproducer for one of the reported crashes (also with > vanilla 21.4.19) is this in init.el: > > (require 'un-define) > (set-default-coding-systems 'utf-8) > (set-coding-priority-list '(utf-8)) > (set-coding-category-system 'utf-8 'utf-8) > > ...LANG=en_US.UTF-8 and XEmacs built with: > > export CFLAGS="-O2 -g -fstack-protector" > ./configure --pdump --with-mule --without-wnn > > And to trigger the crash, M-x manual-entry RET netstat RET So I lied. I'm just getting around to looking at this today. Note that, when compiled with gcc 4.1 but without -fstack-protector, the above recipe sends XEmacs 21.4.19 into an apparently infinite loop. It gets stuck in re_search_2(), in the loop starting at line 4177.