# Building ruby on AIX 5.3 **URL:** \ **Category:** Ruby\ **Created:** [December 11, 2009, 4:00pm UTC](https://www.ruby-forum.com/t/building-ruby-on-aix-5-3/180099 "2009-12-11T16:00:42Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![rbaibich](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/41988e/32.png) [@rbaibich](https://www.ruby-forum.com/u/rbaibich)\ **Post date:** [December 11, 2009, 4:00pm UTC](https://www.ruby-forum.com/t/building-ruby-on-aix-5-3/180099/1 "2009-12-11T16:00:42Z")
Hello, I’m trying to build ruby 1.9.1 p376 on a AIX platform using pWares’s gcc but this is the error I’m getting: checking for size\_t… yes checking size of size\_t… configure: error: in `/tmp/Packages_for_Management/ruby-1.9.1-p376': configure: error: cannot compute sizeof (size_t) See`config.log’ for more details. Any help will be appreciated. Roberto. ---
**Author:** ![rbaibich](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/41988e/32.png) [@rbaibich](https://www.ruby-forum.com/u/rbaibich)\ **Post date:** [December 11, 2009, 5:15pm UTC](https://www.ruby-forum.com/t/building-ruby-on-aix-5-3/180099/2 "2009-12-11T17:15:38Z")
On Fri, Dec 11, 2009 at 8:53 AM, [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Hello, > > I’m trying to build ruby 1.9.1 p376 on a AIX platform using pWares’s gcc > but this is the error I’m getting: > > checking for size\_t… yes > checking size of size\_t… configure: error: in > `/tmp/Packages_for_Management/ruby-1.9.1-p376': configure: error: cannot compute sizeof (size_t) See `config.log’ for more details. Could you please paste the config.log in either a github gist or a pastie and give us the link? Thanks. Andrew McElroy ---
**Author:** ![rbaibich](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/41988e/32.png) [@rbaibich](https://www.ruby-forum.com/u/rbaibich)\ **Post date:** [December 11, 2009, 5:29pm UTC](https://www.ruby-forum.com/t/building-ruby-on-aix-5-3/180099/3 "2009-12-11T17:29:06Z")
Andrew, Here it is the URL on github: [http://github.com/bouzafr/ruby/blob/master/config.log](http://github.com/bouzafr/ruby/blob/master/config.log) Thank you. Roberto. andrew mcelroy [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) 12/11/2009 11:15 AM Please respond to removed\_email\_address@domain.invalid To removed\_email\_address@domain.invalid (ruby-talk ML) cc Subject Re: Building ruby on AIX 5.3 On Fri, Dec 11, 2009 at 8:53 AM, [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Hello, > > I’m trying to build ruby 1.9.1 p376 on a AIX platform using pWares’s gcc > but this is the error I’m getting: > > checking for size\_t… yes > checking size of size\_t… configure: error: in > `/tmp/Packages_for_Management/ruby-1.9.1-p376': configure: error: cannot compute sizeof (size_t) See `config.log’ for more details. Could you please paste the config.log in either a github gist or a pastie and give us the link? Thanks. Andrew McElroy ---
**Author:** ![rbaibich](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/41988e/32.png) [@rbaibich](https://www.ruby-forum.com/u/rbaibich)\ **Post date:** [December 11, 2009, 7:20pm UTC](https://www.ruby-forum.com/t/building-ruby-on-aix-5-3/180099/4 "2009-12-11T19:20:52Z")
On Fri, Dec 11, 2009 at 10:28 AM, [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Andrew, > > Here it is the URL on github: > > [http://github.com/bouzafr/ruby/blob/master/config.log](http://github.com/bouzafr/ruby/blob/master/config.log) > > Thank you. Cool this will help figure it out. Does 1.9.1-p243 build and compile? Andrew McElroy ---
**Author:** ![rbaibich](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/41988e/32.png) [@rbaibich](https://www.ruby-forum.com/u/rbaibich)\ **Post date:** [December 11, 2009, 7:29pm UTC](https://www.ruby-forum.com/t/building-ruby-on-aix-5-3/180099/5 "2009-12-11T19:29:39Z")
On Fri, Dec 11, 2009 at 12:13 PM, andrew mcelroy [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Cool this will help figure it out. > Does 1.9.1-p243 build and compile? I probably should have added this: ftp://ftp.ruby-lang.org/pub/ruby/1.9/ I am curious to know if ruby-1.9.2-preview1 compiles. I am looking for an aix emulator now. I have access to a powerpc system. Andrew McElroy ---
**Author:** ![rbaibich](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/41988e/32.png) [@rbaibich](https://www.ruby-forum.com/u/rbaibich)\ **Post date:** [December 11, 2009, 7:33pm UTC](https://www.ruby-forum.com/t/building-ruby-on-aix-5-3/180099/6 "2009-12-11T19:33:10Z")
On Fri, Dec 11, 2009 at 12:21 PM, andrew mcelroy [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > > > I have access to a powerpc system. looking at the log, you didn’t have to show the hostname, but if its not a security concern to you then don’t worry about it. This seems to be where the log goes south: g++: ‘-V’ option must have argument configure:3827: $? = 1 configure:3816: g++ -qversion \>&5 g++: unrecognized option ‘-qversion’ g++: no input files configure:3827: $? = 1 configure:3831: checking whether we are using the GNU C++ compiler configure:3850: g++ -c conftest.cpp \>&5 configure:3850: $? = 0 configure:3859: result: yes configure:3868: checking whether g++ accepts -g configure:3888: g++ -c -g conftest.cpp \>&5 configure:3888: $? = 0 configure:3929: result: yes configure:3958: checking how to run the C preprocessor configure:3989: gcc -E conftest.c configure:3989: $? = 0 configure:4003: gcc -E conftest.c specifically here on line 146: conftest.c:10:28: error: ac\_nonexistent.h: No such file or directory Make sure that you have ac\_nonexistent.h It looks like these were your flags: configure --disable-shared --enable-threads=posix --prefix=/opt/pware –with-long-double-128 --with-mpfr=/opt/pware --with-gmp=/opt/pware What happens if you don’t give it any flags. I would think that it would still fail, but this is an assumption. Also, if you give it no flags, I am only advocating just doing the configure and make (not a make install) Andrew McElroy ---
**Author:** ![rbaibich](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/41988e/32.png) [@rbaibich](https://www.ruby-forum.com/u/rbaibich)\ **Post date:** [December 11, 2009, 10:59pm UTC](https://www.ruby-forum.com/t/building-ruby-on-aix-5-3/180099/7 "2009-12-11T22:59:47Z")
Andrew, Researching a lot about this, the guru guys from gcc made that ac\_nonexistent.h a real non existent header that it should fail when doing tests, if it doesn’t fail then something is wrong, weird but that is the way it is. So reading more and more the config.log I found this: collect2: library libm not found Which is the first real error I found, doing more research I needed the basic lib math on the box. So I installed the bos.adt Math Library Package from AIX and voila!!! It configured and it’s compiling as well. I hope this helps someone else in the future. Thank to you and everyone else. Roberto. andrew mcelroy [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) 12/11/2009 01:29 PM Please respond to removed\_email\_address@domain.invalid To removed\_email\_address@domain.invalid (ruby-talk ML) cc Subject Re: Building ruby on AIX 5.3 On Fri, Dec 11, 2009 at 12:13 PM, andrew mcelroy [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Cool this will help figure it out. > Does 1.9.1-p243 build and compile? I probably should have added this: ftp://ftp.ruby-lang.org/pub/ruby/1.9/ I am curious to know if ruby-1.9.2-preview1 compiles. I am looking for an aix emulator now. I have access to a powerpc system. Andrew McElroy > > On Fri, Dec 11, 2009 at 8:53 AM, > > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > > > Hello, > > > > > > I’m trying to build ruby 1.9.1 p376 on a AIX platform using pWares’s > > > gcc