Hi, 2007/8/17, Clif Smith <cjs226 / yahoo.com>: > I'm trying to get ruby running on AIX 5.3 as I can't find any precompiled versions... ;-) <snip> > /opt/freeware/lib/gcc/powerpc-ibm-aix5.1.0.0/4.0.0/include/wchar.h:299: error: parse error before 'mbstate_t' > /opt/freeware/lib/gcc/powerpc-ibm-aix5.1.0.0/4.0.0/include/wchar.h:302: error: parse It seemed that you've installed gcc for AIX 5.1 to AIX 5.3. I was able to recreate this error using gcc for 5.1 in my test environment(AIX5.3). Please install correct version of gcc. You can download them from ftp://ftp.software.ibm.com/aix/freeSoftware/aixtoolbox/RPMS/ppc/gcc Regards, -- Yutaka KANEMOTO http://d.hatena.ne.jp/kinpoco/