[syslog-ng]compiling syslog-ng on AIX...

I'm having quite a significant amount of trouble compiling syslog-ng on aix. I'm using aix 5.1ML3 with gnupro toolchain. Normally, I wouldn't ask such a silly question on a mailing list, but I'm getting quite strange compiler errors such as: main.c: In function `setup_signals': main.c:122: `SA_ONESHOT' undeclared (first use in this function) main.c:122: (Each undeclared identifier is reported only once which leads me to believe nobody has ever attempted a port, yet I'm seeing mailing list entries that suggest otherwise (from like 2002) -- can anyone offer some tips on what toolchain (xlc, gnu, etc) they used, and which version of the supporting libraries were used also? tia! Aaron