[Emacs-diffs] Changes to emacs/etc/PROBLEMS [lexbind]

[Miles Bader]

Index: emacs/etc/PROBLEMS
diff -c emacs/etc/PROBLEMS:1.129.2.2 emacs/etc/PROBLEMS:1.129.2.3
*** emacs/etc/PROBLEMS:1.129.2.2        Tue Oct 14 19:08:03 2003
--- emacs/etc/PROBLEMS  Thu Nov 20 19:35:58 2003
***************
*** 1,6 ****
--- 1,46 ----
  This file describes various problems that have been encountered
  in compiling, installing and running GNU Emacs.
  
+ * Segfault on GNU/Linux using certain recent versions of the Linux kernel.
+ 
+ With certain recent Linux kernels (like the one of Redhat Fedora Core
+ 1), the new "Exec-shield" functionality is enabled by default, which
+ creates a different memory layout that breaks the emacs dumper.
+ 
+ You can check the Exec-shield state like this:
+ 
+     cat /proc/sys/kernel/exec-shield
+ 
+ It returns 1 or 2 when Exec-shield is enabled, 0 otherwise.  Please
+ read your system documentation for more details on Exec-shield and
+ associated commands.
+ 
+ When Exec-shield is enabled, building Emacs will segfault during the
+ execution of this command:
+ 
+ temacs --batch --load loadup [dump|bootstrap]
+ 
+ To work around this problem, it is necessary to temporarily disable
+ Exec-shield while building Emacs, using the `setarch' command like
+ this:
+ 
+     setarch i386 ./configure <configure parameters>
+     setarch i386 make <make parameters>
+ 
+ * Characters are displayed as empty boxes or with wrong font under X.
+ 
+ This can occur when two different versions of FontConfig are used.
+ For example, XFree86 4.3.0 has one version and Gnome usually comes
+ with a newer version.  Emacs compiled with --with-gtk will then use
+ the newer version.  In most cases the problem can be temporarily
+ fixed by stopping the application that has the error (it can be
+ Emacs or any other application), removing ~/.fonts.cache-1,
+ and then start the application again.
+ If removing ~/.fonts.cache-1 and restarting doesn't help, the
+ application with problem must be recompiled with the same version
+ of FontConfig as the rest of the system uses.  For KDE, it is
+ sufficient to recompile Qt.
+ 
  * Process output truncated on Mac OS X (Carbon) when using pty's.
  
  There appears to be a problem with the implementation of pty's on the