I've tried to compile megapov-1.2.1 (at megapov.inetart.net) with using of this command line:
g++4 -DHAVE_CONFIG_H -I. -I. -I../.. -I../.. -I../../source -I../../source/patches -I../../unix -I/usr/X11R6/include -pipe -Wno-multichar -s -O3 -ffast-math -malign-double -minline-all-stringops -march=athlon-xp -mtune=athlon-xp -O3 -m32 -mmmx -msse -m3dnow -msse -fexpensive-optimizations -funroll-all-loops -ftree-ccp -ftree-ch -ftree-combine-temps -ftree-copy-prop -ftree-copyrename -ftree-dce -ftree-dominator-opts -ftree-dse -ftree-fre -ftree-loop-im -ftree-loop-ivcanon -ftree-loop-optimize -ftree-lrs -ftree-pre -ftree-salias -ftree-sink -ftree-sra -ftree-store-ccp -ftree-store-copy-prop -ftree-ter -ftree-vect-loop-version -ftree-vrp -fbranch-target-load-optimize2 -ftree-vectorize -mfpmath=387,sse -ffast-math -mfancy-math-387 -march=athlon-xp -fomit-frame-pointer -pipe -c -o povmscpp.o povmscpp.cpp povmscpp.cpp: In constructor 'POVMS_Message::POVMS_Message(POVMSObject&)': povmscpp.cpp:870: internal compiler error: Segmentation fault -- Summary: Internal compiler error Product: gcc Version: 4.2.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: nickols_k at mail dot ru GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34220