[Octave-bug-tracker] [bug #63370] liboctave.so: undefined reference to `cgejsv_' while building from scratch gcc-9.4.0 + RHEL7

[A.R. Burgers]

Follow-up Comment #1, bug #63370 (project octave):

calls to cgejsv/zgejsv were apparently introduced in this changeset:

http://hg.savannah.gnu.org/hgweb/octave/rev/9b6bf68ea663

Indeed om my RHEL 6, liblapack 3.2.1 does not have cgejsv/zgejsv


nm /usr/lib64/liblapack.a | grep ejsv
dgejsv.o:
                                                                                
                                        1. T dgejsv_
sgejsv.o:
                                                                                
                                        1. T sgejsv_


I link octave to an openblas I compiled myself, that does come with
cgejsv/zgejsv.

Assuming the RHEL 7 liblapack also lacks cgejsv/zgejsv, I guess the options
available are convincing your vendor to supply a lapack version with the
complex gejsv versions, switch to openblas, or maybe there is another
precompiled lapack available (atlas?)


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