Problems with egcs-1.1 and XFree86 (libXt.so.6.0) on i586-pc-linux-gnu

[Joerg Pommnitz <pommnitz at darmstadt dot gmd dot de>]

I have build XFree86 3.3.2 (from the latest RedHat SRPM
package XFree86-3.3.2.3-18.src.rpm) with the following
gcc options: "-O9 -fexpensive-optimizations -mpentium".
	After fixing imake to supply -D__i386__ to cpp
the build went fine. Installing the resulting binaries
revealed no obvious problem until I tried to run netscape 4.0.6.
The splash screen came up, but as soon as I tried to access
my mail account netscape dies with a bus error. I 
suspected the new shared libraries and started to replace
the one-by-one with the original versions. The first one
I restored was libXt because libXt seemed to be the most
likely candidate for mis-optimization. I was right on the
mark. With the original libXt in place netscape works fine
again.
-- 
Regards
       Joerg
GMD-IPSI, Dolivostr. 15, Zimmer 120, D-64293 Darmstadt
+49-6151-869-786 (Phone), -818 (FAX)