From: Pablo Galindo <Pablogsal@gmail.com>
Date: Thu, 10 Oct 2019 21:45:17 +0000 (+0100)
Subject: bpo-38437: Activate GC_DEBUG when PY_DEBUG is set (GH-16707)
X-Git-Tag: v3.9.0a1~213
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=320dd504ddf65efe946e6d1e89053ed2d7ebe1e9;p=thirdparty%2FPython%2Fcpython.git

bpo-38437: Activate GC_DEBUG when PY_DEBUG is set (GH-16707)
---

diff --git a/Misc/NEWS.d/next/Core and Builtins/2019-10-10-20-42-09.bpo-38437.z_0mZp.rst b/Misc/NEWS.d/next/Core and Builtins/2019-10-10-20-42-09.bpo-38437.z_0mZp.rst
new file mode 100644
index 000000000000..69a8843ce0f6
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2019-10-10-20-42-09.bpo-38437.z_0mZp.rst	
@@ -0,0 +1,2 @@
+Activate the ``GC_DEBUG`` macro for debug builds of the interpreter (when
+``Py_DEBUG`` is set). Patch by Pablo Galindo.
diff --git a/Modules/gcmodule.c b/Modules/gcmodule.c
index b1e802e33e49..a1cb323bd24c 100644
--- a/Modules/gcmodule.c
+++ b/Modules/gcmodule.c
@@ -37,7 +37,10 @@ module gc
 [clinic start generated code]*/
 /*[clinic end generated code: output=da39a3ee5e6b4b0d input=b5c9690ecc842d79]*/
 
-#define GC_DEBUG (0)  /* Enable more asserts */
+
+#ifdef Py_DEBUG
+#  define GC_DEBUG
+#endif
 
 #define GC_NEXT _PyGCHead_NEXT
 #define GC_PREV _PyGCHead_PREV
@@ -316,7 +319,7 @@ append_objects(PyObject *py_list, PyGC_Head *gc_list)
     return 0;
 }
 
-#if GC_DEBUG
+#ifdef GC_DEBUG
 // validate_list checks list consistency.  And it works as document
 // describing when expected_mask is set / unset.
 static void