jblas: [FreeBSD] `mmul` and Execution error (UnsatisfiedLinkError) at org.jblas.NativeBlas/dgemm

I am aware this seems to be a recurring issue but after spending couple of days trying most of the proposed solutions (here in Wiki and issues as well as in other forums) I have not been able to fix the problem.

Before I describe the problem here is some context:

OS: FreeBSD 12.1-RELEASE r354233 GENERIC amd64 jblas: 1.2.5

What/How I am using jblas?

Clojure is the primary language. I am calling jblas functions via Clojure’s Java Interop

Error using mmul

I can successfully (without error) use the matrix multiplication function mmul when I am multiplying a row vector (1 x n) and a column vector (n x 1).

But when I use mmul to multiply a column vector (m x 1) and a row vector (1 x n) or among two compatible matrices I get

Execution error (UnsatisfiedLinkError) at org.jblas.NativeBlas/dgemm (NativeBlas.java:-2).
org.jblas.NativeBlas.dgemm(CCIIID[DII[DIID[DII)V

Because row * column can be performed using mmul I can use this to fill out the product (matrix) for column * row and matrix * matrix. But I’d prefer not to do this. Can somebody help me how to fix this dependency in FreeBSD?

Since jblas 1.2.5 has moved to openblas I have installed this and other potential dependencies

• pkg install openblas
• pkg install gcc
• pkg install linux-c7-libgfortran

The installed openblas libraries (pkg info -lx openblas) are in

openblas-0.3.10,1:
        /usr/local/include/cblas.h
        /usr/local/include/f77blas.h
        /usr/local/include/lapack.h
        /usr/local/include/lapacke.h
        /usr/local/include/lapacke_config.h
        /usr/local/include/lapacke_mangling.h
        /usr/local/include/lapacke_utils.h
        /usr/local/include/openblas_config.h
        /usr/local/lib/cmake/openblas/OpenBLASConfig.cmake
        /usr/local/lib/cmake/openblas/OpenBLASConfigVersion.cmake
        /usr/local/lib/libopenblas.a
        /usr/local/lib/libopenblas.so
        /usr/local/lib/libopenblas.so.0
        /usr/local/lib/libopenblasp-r0.3.10.a
        /usr/local/lib/libopenblasp-r0.3.10.so
        /usr/local/libdata/pkgconfig/openblas.pc
        /usr/local/share/licenses/openblas-0.3.10,1/BSD3CLAUSE
        /usr/local/share/licenses/openblas-0.3.10,1/LICENSE
        /usr/local/share/licenses/openblas-0.3.10,1/catalog.mk

Looking at the source code ~/.m2/repository/org/jblas/jblas/1.2.5/jblas-1.2.3.jar/org//jblas/NativeBlastLibraryLoader.class I am wondering if I need to change this to fix the problem (I would prefer not to use this approach).

package org.jblas;

import org.jblas.exceptions.UnsupportedArchitectureException;
import org.jblas.util.LibraryLoader;
import org.jblas.util.Logger;

class NativeBlasLibraryLoader {
    NativeBlasLibraryLoader() {
    }

    static void loadLibraryAndCheckErrors() {
        try {
            try {
                System.loadLibrary("jblas");
            } catch (UnsatisfiedLinkError var3) {
                Logger.getLogger().config("BLAS native library not found in path. Copying native library from the archive. Consider installing the library somewhere in the path (for Windows: PATH, for Linux: LD_LIBRARY_PATH).");
                loadDependentLibraries();
                (new LibraryLoader()).loadLibrary("jblas", true);
            }

            double[] a = new double[1];
            NativeBlas.dgemm('N', 'N', 1, 1, 1, 1.0D, a, 0, 1, a, 0, 1, 1.0D, a, 0, 1);
        } catch (UnsatisfiedLinkError var4) {
            String arch = System.getProperty("os.arch");
            String name = System.getProperty("os.name");
            if (name.startsWith("Windows") && var4.getMessage().contains("Can't find dependent libraries")) {
                System.err.println("On Windows, you need some additional support libraries.\nFor example, you can install the two packages in cygwin:\n\n   mingw64-x86_64-gcc-core   mingw64-x86_64-gfortran\n\nand add the directory <cygwin-home>\\usr\\x86_64-w64-mingw32\\sys-root\\mingw\\bin to your path.\n\nFor more information, see http://github.com/mikiobraun/jblas/wiki/Missing-Libraries");
            }
        } catch (UnsupportedArchitectureException var5) {
            System.err.println(var5.getMessage());
        }

    }

    public static void loadDependentLibraries() {
        String arch = System.getProperty("os.arch");
        String name = System.getProperty("os.name");
        LibraryLoader loader = new LibraryLoader();
        if (name.startsWith("Windows") && arch.equals("amd64")) {
            loader.loadLibrary("libgcc_s_sjlj-1", false);
            loader.loadLibrary("libgfortran-3", false);
        } else if (name.startsWith("Windows") && arch.equals("x86")) {
            loader.loadLibrary("libgcc_s_dw2-1", false);
            loader.loadLibrary("libgfortran-3", false);
        } else if (name.equals("Linux") && arch.equals("amd64")) {
            loader.loadLibrary("quadmath-0", false);
            loader.loadLibrary("gfortran-4", false);
        }

    }
}