[Octave-bug-tracker] [bug #53853] configure: OCTAVE_BLAS_F77_FUNC sets ax_blas_integer_size incorrectly on big endian system

[Mike Miller]

URL:
  <http://savannah.gnu.org/bugs/?53853>

                 Summary: configure: OCTAVE_BLAS_F77_FUNC sets
ax_blas_integer_size incorrectly on big endian system
                 Project: GNU Octave
            Submitted by: mtmiller
            Submitted on: Sun 06 May 2018 11:30:11 AM PDT
                Category: Configuration and Build System
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Build Failure
                  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:

The new logic in Octave 4.4 to try to determine the BLAS integer parameter
size fails on big endian systems. The integer size is determined to be 8
bytes, even though the true integer size is 4 bytes.

With Octave 4.2 on Debian GNU/Linux mips:


checking whether the integer size is correct... yes


With Octave 4.4 on Debian GNU/Linux mips:


checking BLAS library integer size... 8
…
checking default size of Fortran INTEGER... 4
configure: adding -fdefault-integer-8 to F77_INTEGER_8_FLAG
checking default size of Fortran INTEGER... 8







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