[Octave-bug-tracker] [bug #57263] [octave forge] (nan) fails to build on a system without libblas (Octave built with OpenBLAS)

[Mike Miller]

URL:
  <https://savannah.gnu.org/bugs/?57263>

                 Summary: [octave forge] (nan) fails to build on a system
without libblas (Octave built with OpenBLAS)
                 Project: GNU Octave
            Submitted by: mtmiller
            Submitted on: Mon 18 Nov 2019 04:45:11 PM PST
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Build Failure
                  Status: Patch Submitted
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: other
        Operating System: GNU/Linux

    _______________________________________________________

Details:

The NaN package fails to install on a system that does not have libblas
anywhere on the system library search path.

Here's an example build error output


g++ -I/app/include/octave-5.1.0/octave/.. -I/app/include/octave-5.1.0/octave
-I/app/include  -pthread -fopenmp -O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2
-fexceptions -fstack-protector-strong -grecord-gcc-switches -shared
-Wl,-Bsymbolic -L/app/lib -pthread  -o train.mex  tron.o linear.o
/tmp/oct-UBecJI.o /tmp/oct-iGWUGf.o   -lgomp -lblas  -L/app/lib  -L/app/lib
-Wl,-z,relro,-z,now -Wl,--as-needed 
/usr/lib/gcc/x86_64-unknown-linux-gnu/8.3.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
cannot find -lblas
collect2: error: ld returned 1 exit status
make: *** [Makefile:184: train.mex] Error 1


The attached patch calls mkoctfile to get the value of BLAS_LIBS, which may be
"-lblas" on some systems, and may be "-lopenblas" on other systems.



    _______________________________________________________

File Attachments:


-------------------------------------------------------
Date: Mon 18 Nov 2019 04:45:11 PM PST  Name: nan-blas.patch  Size: 2KiB   By:
mtmiller

<http://savannah.gnu.org/bugs/download.php?file_id=47888>

    _______________________________________________________

Reply to this item at:

  <https://savannah.gnu.org/bugs/?57263>

_______________________________________________
  Message sent via Savannah
  https://savannah.gnu.org/