Add option for preferring EBPYTHONPREFIXES

Author: Micket

easybuild/framework/easyconfig/default.py

@@ -114,6 +114,7 @@
     'patches': [[], "List of patches to apply", BUILD],
     'prebuildopts': ['', 'Extra options pre-passed to build command.', BUILD],
     'preconfigopts': ['', 'Extra options pre-passed to configure.', BUILD],
+    'prefer_ebpythonprefixes': [True, "Prefer EBPYTHONPREFIXES over PYTHONPATH when possible.", BUILD],
     'preinstallopts': ['', 'Extra prefix options for installation.', BUILD],
     'pretestopts': ['', 'Extra prefix options for test.', BUILD],
     'postinstallcmds': [[], 'Commands to run after the install step.', BUILD],

easybuild/tools/config.py

@@ -328,6 +328,7 @@ def mk_full_default_path(name, prefix=DEFAULT_PREFIX):
         'modules_tool_version_check',
         'mpi_tests',
         'pre_create_installdir',
+        'prefer_ebpythonprefixes',
         'show_progress_bar',
         'trace',
     ],

easybuild/tools/options.py

@@ -482,6 +482,8 @@ def override_options(self):
                                             None, 'store_true', False),
             'pre-create-installdir': ("Create installation directory before submitting build jobs",
                                       None, 'store_true', True),
+            'prefer-ebpythonprefixes': (("Prefer EBPYTHONPREFIXES over PYTHONPATH when possible"),
+                                        None, 'store_true', True),
             'pretend': (("Does the build/installation in a test directory located in $HOME/easybuildinstall"),
                         None, 'store_true', False, 'p'),
             'read-only-installdir': ("Set read-only permissions on installation directory after installation",