New to list I could not reply directly to message http://lists.mindrot.org/pipermail/openssh-unix-dev/2015-January/033290.html so I shall reply here. va_copy missing is something I used to run into frequently - and I forget how I got that to go away - so I cannot help you directly there. If I recall, this may be related to your starting point. FYI: I use a basic build system based on AIX 5.3 TL7 SP10 (closing SP for TL7) with one exception - I have the openssl from AIX 5.3 TL12 (in any case later than TL7) FYI: openssl for AIX 5.3TL7 is openssl.0.9.8d (fileset openssl.base.0.9.8.4) whereas the later openssl is 0.9.8.k (openssl.base.0.9.8.1101) - Note d is 4th letter of alphabet and k is the 11th I have successfully built openssh-6.7p1 on this system - and it loads on both AIX 5.3 as AIX 6.1 (TL9 is what I tested). It does not run on AIX 7.1 - even though, imho, it should. I did a short write-up on this build on my AIX portal - http://www.rootvg.net/content/view/679/169/. There is a link to a binary package in the article - please excuse the 'advertising'. To help with standardizing, and being lazy, I have developed a package I call 'buildaix' that makes use of mkinstallp to configure, make and mkinstallp opensource packages. I have just uploaded my current version of this package to https://sourceforge.net/projects/buildaix/ So, in reply to the request for any "help" or "suggestions" I would be interested in how it helps and/or with other "aixtools" opensource things I have packaged. One that is often needed is GNU gettext. Lastly, my experience when packaging is that the real test is when others load, or try to load a package and say what went wrong. So I will be grateful for feedback should you try my packaged version of openssh and/or requests for fixes/features with buildaix. regards, Michael