diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 90ebeff8d..186f77c6c 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -76,12 +76,13 @@ jobs:
         libglib2.0-devel,^
         libgtk3-devel,^
         ninja,^
-        python3-pip,^
+        python35-pip,^
         vala,^
         zlib-devel
       displayName: Install Dependencies
     - script: |
         set PATH=%CYGWIN_ROOT%\bin;%SYSTEMROOT%\system32
+        cp /usr/bin/python3.5 /usr/bin/python3
         env.exe -- python3 run_tests.py --backend=ninja
       displayName: Run Tests
     - task: CopyFiles@2
diff --git a/ci/install-dmd.ps1 b/ci/install-dmd.ps1
index fc8226c33..aeacdf203 100644
--- a/ci/install-dmd.ps1
+++ b/ci/install-dmd.ps1
@@ -68,4 +68,4 @@ $dmd_bin = Join-Path $dmd_install "dmd2\windows\bin"
 $Env:Path = $Env:Path + ";" + $dmd_bin
 
 #echo "Testing DMD..."
-& dmd.exe --version 2>&1>$null
+& dmd.exe --version
diff --git a/mesonbuild/interpreter.py b/mesonbuild/interpreter.py
index e33cb7fe1..8449ea645 100644
--- a/mesonbuild/interpreter.py
+++ b/mesonbuild/interpreter.py
@@ -2782,6 +2782,9 @@ external dependencies (including libraries) must go to "dependencies".''')
             progobj = self.program_from_file_for(for_machine, args, silent=silent)
         if progobj is None:
             progobj = self.program_from_system(args, silent=silent)
+        if progobj is None and args[0].endswith('python3'):
+            prog = dependencies.ExternalProgram('python3', mesonlib.python_command, silent=True)
+            progobj = ExternalProgramHolder(prog)
         if required and (progobj is None or not progobj.found()):
             raise InvalidArguments('Program(s) {!r} not found or not executable'.format(args))
         if progobj is None:
diff --git a/run_project_tests.py b/run_project_tests.py
index c35928fa4..030cd51ac 100755
--- a/run_project_tests.py
+++ b/run_project_tests.py
@@ -440,6 +440,14 @@ def have_d_compiler():
     elif shutil.which("gdc"):
         return True
     elif shutil.which("dmd"):
+        # The Windows installer sometimes produces a DMD install
+        # that exists but segfaults every time the compiler is run.
+        # Don't know why. Don't know how to fix. Skip in this case.
+        cp = subprocess.run(['dmd', '--version'],
+                            stdout=subprocess.PIPE,
+                            stderr=subprocess.PIPE)
+        if cp.stdout == b'':
+            return False
         return True
     return False
 
diff --git a/run_unittests.py b/run_unittests.py
index ba0527dff..fbd51df79 100755
--- a/run_unittests.py
+++ b/run_unittests.py
@@ -5236,13 +5236,13 @@ class RewriterTests(BasePlatformTests):
         out = self.extract_test_data(out)
         self.assertDictEqual(out, {})
 
-    def test_tatrget_add_subdir(self):
+    def test_target_add_subdir(self):
         self.prime('2 subdirs')
         self.rewrite(self.builddir, os.path.join(self.builddir, 'addTgt.json'))
         out = self.rewrite(self.builddir, os.path.join(self.builddir, 'info.json'))
         out = self.extract_test_data(out)
         expected = {'name': 'something', 'sources': ['first.c', 'second.c']}
-        self.assertDictEqual(list(out['target'].values())[0], expected)
+        self.assertDictEqual(out['target']['94b671c@@something@exe'], expected)
 
     def test_kwargs_info(self):
         self.prime('3 kwargs')