Make various internal _testbuffer symbols static. (GH-8160)
(cherry picked from commit 6cfe45a5c3d41c08d09f319ea68065b10200b13f)
Co-authored-by: Benjamin Peterson <benjamin@python.org>
diff --git a/Modules/_testbuffer.c b/Modules/_testbuffer.c
index 6b8ab34..669794d 100644
--- a/Modules/_testbuffer.c
+++ b/Modules/_testbuffer.c
@@ -8,13 +8,13 @@
/* struct module */
-PyObject *structmodule = NULL;
-PyObject *Struct = NULL;
-PyObject *calcsize = NULL;
+static PyObject *structmodule = NULL;
+static PyObject *Struct = NULL;
+static PyObject *calcsize = NULL;
/* cache simple format string */
static const char *simple_fmt = "B";
-PyObject *simple_format = NULL;
+static PyObject *simple_format = NULL;
#define SIMPLE_FORMAT(fmt) (fmt == NULL || strcmp(fmt, "B") == 0)
#define FIX_FORMAT(fmt) (fmt == NULL ? "B" : fmt)