Take the language into account when setting the source file if cython…

… isn't available. Addresses #405
zodb · Jul 17, 2020 · 7297068 · 7297068
1 parent af57d6c
commit 7297068
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diff --git a/CHANGES.rst b/CHANGES.rst
@@ -5,7 +5,9 @@
 3.1.3 (unreleased)
 ==================
 
-- Nothing changed yet.
+- Source distributions: Fix installation when Cython isn't available.
+  Previously it incorrectly assumed a '.c' extension which lead to
+  compiler errors. See :issue:`405`.
 
 
 3.1.2 (2020-07-14)

diff --git a/setup.py b/setup.py
@@ -25,7 +25,7 @@ def _dummy_cythonize(extensions, **_kwargs):
         for sfile in extension.sources:
             path, ext = os.path.splitext(sfile)
             if ext in ('.pyx', '.py'):
-                ext = '.c'
+                ext = '.cpp' if extension.language == 'c++' else '.c'
                 sfile = path + ext
             sources.append(sfile)
         extension.sources[:] = sources
@@ -34,7 +34,7 @@ def _dummy_cythonize(extensions, **_kwargs):
 try:
     from Cython.Build import cythonize
 except ImportError:
-    # The .c files had better already exist.
+    # The generated source files had better already exist.
     cythonize = _dummy_cythonize