add meson option for setting MKL_THREADING

Author: ndgrigorian

meson.build

@@ -80,7 +80,7 @@ mkl_dep = dependency('MKL', method: 'cmake',
     cmake_args: [
         '-DMKL_ARCH=intel64',
         '-DMKL_LINK=dynamic',
-        '-DMKL_THREADING=intel_thread',
+        '-DMKL_THREADING=' + get_option('mkl_threading'),
         '-DMKL_INTERFACE=lp64'
     ],
     required: true

meson.options

@@ -1,2 +1,10 @@
 option('opt_report', type: 'boolean', value: false,
     description: 'Whether to generate optimization vectorization report')
+
+option(
+    'mkl_threading',
+    type: 'combo',
+    choices: ['intel_thread', 'tbb_thread', 'sequential', 'gnu_thread'],
+    value: 'intel_thread',
+    description: 'MKL threading layer to link to (default: intel_thread)'
+)