Add test to check that gcc in uenv does not generate a "fixed" pthread.h (#474)

Author: msimberg

checks/prgenv/uenv_fixincludes.py

@@ -0,0 +1,32 @@
+# Copyright Swiss National Supercomputing Centre (CSCS/ETH Zurich)
+# ReFrame Project Developers. See the top-level LICENSE file for details.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+
+import reframe as rfm
+import reframe.utility.sanity as sn
+
+
+@rfm.simple_test
+class UenvFixincludes(rfm.RunOnlyRegressionTest):
+    descr = '''
+    Check that GCC is not "fixing" the pthread.h header. See
+    https://github.com/spack/spack-packages/pull/2596 for an overview and links
+    to further details.
+    '''
+
+    valid_systems = ['+uenv +remote +scontrol']
+    valid_prog_environs = ['+uenv']
+    maintainers = ['msimberg', 'SSA']
+
+    time_limit = '1m'
+    num_tasks_per_node = 1
+    sourcesdir = None
+    executable = 'find'
+    executable_opts = ["/user-environment", "/user-tools", "-type", "f",
+                       "-name", "pthread.h"]
+    tags = {'production', 'maintenance', 'uenv'}
+
+    @sanity_function
+    def validate(self):
+        return sn.assert_not_found(r'include-fixed', self.stdout)