diff --git a/poky/meta/lib/oeqa/sdk/buildtools-cases/build.py b/poky/meta/lib/oeqa/sdk/buildtools-cases/build.py
index 5a17ab9..9c9a84b 100644
--- a/poky/meta/lib/oeqa/sdk/buildtools-cases/build.py
+++ b/poky/meta/lib/oeqa/sdk/buildtools-cases/build.py
@@ -3,6 +3,7 @@
 #
 
 import os, tempfile
+import time
 from oeqa.sdk.case import OESDKTestCase
 from oeqa.utils.subprocesstweak import errors_have_output
 errors_have_output()
@@ -20,4 +21,10 @@
                 conf.write('\n')
                 conf.write('DL_DIR = "%s"\n' % self.td['DL_DIR'])
 
-            self._run('. %s/oe-init-build-env %s && bitbake virtual/libc' % (corebase, testdir))
+            try:
+                self._run('. %s/oe-init-build-env %s && bitbake virtual/libc' % (corebase, testdir))
+            finally:
+                delay = 10
+                while delay and os.path.exists(testdir + "/bitbake.lock"):
+                    time.sleep(1)
+                    delay = delay - 1
diff --git a/poky/meta/lib/oeqa/sdk/buildtools-cases/gcc.py b/poky/meta/lib/oeqa/sdk/buildtools-cases/gcc.py
new file mode 100644
index 0000000..36ba15b
--- /dev/null
+++ b/poky/meta/lib/oeqa/sdk/buildtools-cases/gcc.py
@@ -0,0 +1,29 @@
+#
+# SPDX-License-Identifier: MIT
+#
+
+import os.path
+from oeqa.sdk.case import OESDKTestCase
+
+class GccTests(OESDKTestCase):
+    def test_verify_specs(self):
+        """
+        Verify that the compiler has been relocated successfully and isn't
+        looking in the hard-coded prefix.
+        """
+        # Canonicalise the SDK root
+        sdk_base = os.path.realpath(self.tc.sdk_dir)
+        # Canonicalise the location of GCC
+        gcc_path = os.path.realpath(self._run("command -v gcc").strip())
+        # Skip the test if the GCC didn't come from the buildtools, as it only
+        # comes with buildtools-extended-tarball.
+        if os.path.commonprefix((sdk_base, gcc_path)) != sdk_base:
+            self.skipTest("Buildtools does not provide GCC")
+
+        # This is the prefix that GCC is build with, and should be replaced at
+        # installation time.
+        sdkpath = self.td.get("SDKPATH")
+        self.assertTrue(sdkpath)
+
+        for line in self._run('gcc -dumpspecs').splitlines():
+            self.assertNotIn(sdkpath, line)
diff --git a/poky/meta/lib/oeqa/sdk/buildtools-cases/https.py b/poky/meta/lib/oeqa/sdk/buildtools-cases/https.py
new file mode 100644
index 0000000..134879a
--- /dev/null
+++ b/poky/meta/lib/oeqa/sdk/buildtools-cases/https.py
@@ -0,0 +1,20 @@
+#
+# SPDX-License-Identifier: MIT
+#
+
+from oeqa.sdk.case import OESDKTestCase
+from oeqa.utils.subprocesstweak import errors_have_output
+errors_have_output()
+
+class HTTPTests(OESDKTestCase):
+    """
+    Verify that HTTPS certificates are working correctly, as this depends on
+    environment variables being set correctly.
+    """
+
+    def test_wget(self):
+        self._run('env -i wget --debug --output-document /dev/null https://www.example.com')
+
+    def test_python(self):
+        # urlopen() returns a file-like object on success and throws an exception otherwise
+        self._run('python3 -c \'import urllib.request; urllib.request.urlopen("https://www.example.com/")\'')