[Octave-bug-tracker] [bug #50339] configure detection for BLAS does not use -fdefault-integer-8

[Kai Torben Ohlhus]

URL:
  <http://savannah.gnu.org/bugs/?50339>

                 Summary: configure detection for BLAS does not use
-fdefault-integer-8
                 Project: GNU Octave
            Submitted by: siko1056
            Submitted on: Fri 17 Feb 2017 05:11:13 PM CET
                Category: Configuration and Build System
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

After reordering configure to use --enable-64 by default the check for the
BLAS library happens by compiling FORTRAN code without using the
-fdefault-integer-8 flag and fails in segmentation faults. In
http://hg.savannah.gnu.org/hgweb/octave/file/5f79bb3fdd28/configure.ac in
lines 963 and 977 the variable F77_INTEGER_8_FLAG is used, but empty. It gets
filled by the necessary flag in about line 1050.

I assume the order was swapped in CSET
http://hg.savannah.gnu.org/hgweb/octave/rev/21707d6a02c7 but never tested. My
last test of this detection feature happened about 3 months ago.




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