Rename corecext.ppyx to just corecext.pyx now that we don't preprocess.

.gitignore

@@ -6,7 +6,6 @@ build/
 *.o
 *.egg-info
 gevent.*.[ch]
-src/gevent/libev/corecext.pyx
 src/gevent/__pycache__
 src/gevent/libev/_corecffi.c
 src/gevent/libev/_corecffi.o

CHANGES.rst

@@ -249,7 +249,7 @@ libev
 
 - The C extension has been updated to use more modern Cython idioms
   and generate less code for simplicity, faster compilation and better
-  cache usage.
+  cache usage. See :pr:`1077`.
 
   - Watcher objects may be slightly larger. On a 64-bit platform, a
     typical watcher may be 16 bytes (2 pointers) larger. This is

Makefile

@@ -14,8 +14,8 @@ export LC_ALL=C.UTF-8
 
 all: src/gevent/libev/gevent.corecext.c src/gevent/gevent.ares.c src/gevent/gevent._semaphore.c src/gevent/gevent._local.c
 
-src/gevent/libev/gevent.corecext.c: src/gevent/libev/corecext.ppyx src/gevent/libev/libev.pxd src/gevent/libev/libev.h
-	$(CYTHON) -o gevent.corecext.c src/gevent/libev/corecext.ppyx
+src/gevent/libev/gevent.corecext.c: src/gevent/libev/corecext.pyx src/gevent/libev/libev.pxd src/gevent/libev/libev.h
+	$(CYTHON) -o gevent.corecext.c src/gevent/libev/corecext.pyx
 	echo '#include "callbacks.c"' >> gevent.corecext.c
 	mv gevent.corecext.* src/gevent/libev/
 
@@ -40,7 +40,6 @@ src/gevent/gevent._local.c: src/gevent/local.py
 
 
 clean:
-	rm -f corecext.pyx src/gevent/libev/corecext.pyx
 	rm -f gevent.corecext.c gevent.corecext.h src/gevent/libev/gevent.corecext.c src/gevent/libev/gevent.corecext.h
 	rm -f gevent.ares.c gevent.ares.h src/gevent/gevent.ares.c src/gevent/gevent.ares.h
 	rm -f gevent._semaphore.c gevent._semaphore.h src/gevent/gevent._semaphore.c src/gevent/gevent._semaphore.h

appveyor/make.cmd

 IF "%PYTHON_EXE%" == "python" (
-    cython -o gevent.corecext.c src\gevent\libev\corecext.ppyx
+    cython -o gevent.corecext.c src\gevent\libev\corecext.pyx
 	type src\gevent\libev\callbacks.c >> gevent.corecext.c
     move gevent.corecext.* src\gevent\libev
 )