Re: Trying to compile Octave on RHEL 7.3

[Michael Metts]

awesome.  i’ll give it a try.  i really think it’s important to get this thing on an equal footing with the other tools (R, Python).  i’m not a developer but i can’t see why all this 32-bit baggage is still around.  64-bit processors and operating systems have been in common use for only about a decade after all.

On Mar 29, 2017, at 8:06 PM, Ozzy Lash <address@hidden> wrote:

On Tue, Mar 28, 2017 at 10:52 PM, Michael Metts <address@hidden> wrote:

So, maybe the is greedy but what about —enable-64?  I would like to compile Octave for 64-bit addressing including BLAS/etc.  I tried a configure with —enable-64 and it looks like array addressing/etc. made it but openBLAS has a “NO” for 64-bit addressing.  I looked at the documentation for this and became very confused.  All or nearly all of the libraries on my system are in /lib64 or /usr/lib64  … As far as I know, the vast majority of the binaries on this system are 64-bit.  In any case, it appears that the one flag is insufficient and I can’t figure out the documentation.  is there a bit more direct cookbook for building a pure 64-bit octave?  Thanks.

No guarantees, but this let me get through configure and gave:

   64-bit array dims and indexing:       yes
  64-bit BLAS array dims and indexing:  yes

on centos 7.

On the configure line I added:

--with-blas=openblas64 FFLAGS=-fdefault-integer-8

without the FFLAGS it would fail to configure.  I have not compiled or tested octave with this change, but thought it might get you further.

Bill