Fix Makefile and make sure it's tested

Fixes #3492

doc/changelog.asciidoc

@@ -15,6 +15,14 @@ breaking changes (such as renamed commands) can happen in minor releases.
 // `Fixed` for any bug fixes.
 // `Security` to invite users to upgrade in case of vulnerabilities.
 
+v1.1.1 (unreleased)
+-------------------
+
+Fixed
+~~~~~
+
+- The Makefile now actually works.
+
 v1.1.0
 ------
 

misc/Makefile

@@ -21,5 +21,5 @@ install: doc/qutebrowser.1.html
 		$(wildcard misc/userscripts/*)
 	install -Dm755 -t "$(DESTDIR)/usr/share/qutebrowser/scripts/" \
 		$(filter-out scripts/__init__.py scripts/__pycache__ scripts/dev \
-		  scripts/testbrowser_cpp scripts/asciidoc2html.py scripts/setupcommon.py \
+		  scripts/testbrowser scripts/asciidoc2html.py scripts/setupcommon.py \
 			scripts/link_pyqt.py,$(wildcard scripts/*))

scripts/dev/build_release.py

@@ -328,6 +328,14 @@ def build_sdist():
     return artifacts
 
 
+def test_makefile():
+    """Make sure the Makefile works correctly."""
+    utils.print_title("Testing makefile")
+    with tempfile.TemporaryDirectory() as tmpdir:
+        subprocess.run(['make', '-f', 'misc/Makefile',
+                        'DESTDIR={}'.format(tmpdir), 'install'], check=True)
+
+
 def read_github_token():
     """Read the GitHub API token from disk."""
     token_file = os.path.join(os.path.expanduser('~'), '.gh_token')
@@ -403,6 +411,7 @@ def main():
     elif sys.platform == 'darwin':
         artifacts = build_mac()
     else:
+        test_makefile()
         artifacts = build_sdist()
         upload_to_pypi = True