I'm new to this list so I hope I'm posting this on the right list :) I'm a programmer for a gaming company in The Netherlands, working with the Unreal Engine which we've licensed. I've succesfully compiled the engine with (GCC) 3.3.4 20040817 (Red Hat Linux 3.3.4-2) on a Fedora Core 3 box, but it's painstaking slow: it takes about 1,5 hours to compile the engine from scratch (compared to 8 minutes in VC++ .NET 2003). Since gcc 3.4 has precompiled header support - which should decrease the compile time with gcc dramatically - I'm trying to compile it with (GCC) 3.4.3 20050227 (Red Hat 3.4.3-22.fc3) which is the latest version of gcc yum can give me. But half-way through gcc crashes. Unfortunately I cannot supply much more information or a full source bug report, as it's licensed code I cannot distribute freely. I've constructed a buildsystem using autoconf/automake. What follows is the output with only a small amount of error details: g++ <large amounts of defines> -fshort-wchar -ffast-math -fexpensive-optimizations -fsigned-char -pipe <large amounts of include directories> -g -O2 -MT AFileLog.lo -MD -MP -MF .deps/AFileLog.Tpo -c AFileLog.cpp -fPIC -DPIC -o .libs/AFileLog.o g++: Internal error: Segmentation fault (program cc1plus) Please submit a full bug report. See <URL:http://bugzilla.redhat.com/bugzilla> for instructions. Can you guys give me some hints/tips on what I might do to prevent gcc from crashing? The output above is the result of trying to compile a source file, but when I try to compile a precompiled header gcc crashes with the exact same message. Thanks in advance for any help! Bye, Marc